CN116514520B - Light fireproof building material and preparation method thereof - Google Patents
Light fireproof building material and preparation method thereof Download PDFInfo
- Publication number
- CN116514520B CN116514520B CN202310448260.4A CN202310448260A CN116514520B CN 116514520 B CN116514520 B CN 116514520B CN 202310448260 A CN202310448260 A CN 202310448260A CN 116514520 B CN116514520 B CN 116514520B
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- Prior art keywords
- light
- heat
- parts
- stirring
- mixture
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- 239000004566 building material Substances 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- 238000005260 corrosion Methods 0.000 claims abstract description 76
- 239000002344 surface layer Substances 0.000 claims abstract description 64
- 238000000746 purification Methods 0.000 claims abstract description 61
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims abstract description 54
- 239000000839 emulsion Substances 0.000 claims abstract description 53
- 239000011248 coating agent Substances 0.000 claims abstract description 51
- 238000000576 coating method Methods 0.000 claims abstract description 51
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000000835 fiber Substances 0.000 claims abstract description 41
- 238000009413 insulation Methods 0.000 claims abstract description 40
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 38
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 35
- 239000012792 core layer Substances 0.000 claims abstract description 33
- 229910001629 magnesium chloride Inorganic materials 0.000 claims abstract description 27
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000004111 Potassium silicate Substances 0.000 claims abstract description 20
- BHGADZKHWXCHKX-UHFFFAOYSA-N methane;potassium Chemical compound C.[K] BHGADZKHWXCHKX-UHFFFAOYSA-N 0.000 claims abstract description 20
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 20
- 229910052913 potassium silicate Inorganic materials 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims description 72
- 238000003756 stirring Methods 0.000 claims description 66
- 238000002156 mixing Methods 0.000 claims description 47
- 239000000843 powder Substances 0.000 claims description 46
- 239000000463 material Substances 0.000 claims description 29
- 239000000243 solution Substances 0.000 claims description 28
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 239000001913 cellulose Substances 0.000 claims description 25
- 229920002678 cellulose Polymers 0.000 claims description 25
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 24
- 239000007789 gas Substances 0.000 claims description 23
- 238000001035 drying Methods 0.000 claims description 22
- 238000000498 ball milling Methods 0.000 claims description 18
- 239000011812 mixed powder Substances 0.000 claims description 16
- 238000009740 moulding (composite fabrication) Methods 0.000 claims description 15
- 239000002994 raw material Substances 0.000 claims description 13
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 12
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 12
- 238000005096 rolling process Methods 0.000 claims description 12
- 239000011265 semifinished product Substances 0.000 claims description 12
- 238000005507 spraying Methods 0.000 claims description 12
- 239000000341 volatile oil Substances 0.000 claims description 12
- 229920000858 Cyclodextrin Polymers 0.000 claims description 11
- 239000011325 microbead Substances 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000012153 distilled water Substances 0.000 claims description 9
- 239000012065 filter cake Substances 0.000 claims description 9
- 229910021485 fumed silica Inorganic materials 0.000 claims description 9
- 239000010439 graphite Substances 0.000 claims description 9
- 229910002804 graphite Inorganic materials 0.000 claims description 9
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 9
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 9
- 239000000047 product Substances 0.000 claims description 9
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 9
- 238000005406 washing Methods 0.000 claims description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 8
- 239000002356 single layer Substances 0.000 claims description 8
- QMMJWQMCMRUYTG-UHFFFAOYSA-N 1,2,4,5-tetrachloro-3-(trifluoromethyl)benzene Chemical compound FC(F)(F)C1=C(Cl)C(Cl)=CC(Cl)=C1Cl QMMJWQMCMRUYTG-UHFFFAOYSA-N 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 239000003822 epoxy resin Substances 0.000 claims description 7
- 229920002401 polyacrylamide Polymers 0.000 claims description 7
- 229920000647 polyepoxide Polymers 0.000 claims description 7
- 239000004814 polyurethane Substances 0.000 claims description 7
- 229920002635 polyurethane Polymers 0.000 claims description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
- 235000005979 Citrus limon Nutrition 0.000 claims description 6
- 244000131522 Citrus pyriformis Species 0.000 claims description 6
- 229920000691 Poly[bis(2-chloroethyl) ether-alt-1,3-bis[3-(dimethylamino)propyl]urea] Polymers 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 6
- 230000006837 decompression Effects 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 230000009970 fire resistant effect Effects 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 6
- 239000011259 mixed solution Substances 0.000 claims description 6
- -1 polypropylene Polymers 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- HFHDHCJBZVLPGP-UHFFFAOYSA-N schardinger α-dextrin Chemical compound O1C(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(O)C2O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC2C(O)C(O)C1OC2CO HFHDHCJBZVLPGP-UHFFFAOYSA-N 0.000 claims description 6
- 238000000967 suction filtration Methods 0.000 claims description 6
- 239000001116 FEMA 4028 Substances 0.000 claims description 5
- WHGYBXFWUBPSRW-FOUAGVGXSA-N beta-cyclodextrin Chemical compound OC[C@H]([C@H]([C@@H]([C@H]1O)O)O[C@H]2O[C@@H]([C@@H](O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O3)[C@H](O)[C@H]2O)CO)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@@H]3O[C@@H]1CO WHGYBXFWUBPSRW-FOUAGVGXSA-N 0.000 claims description 5
- 235000011175 beta-cyclodextrine Nutrition 0.000 claims description 5
- 229960004853 betadex Drugs 0.000 claims description 5
- 239000004035 construction material Substances 0.000 claims description 5
- 239000011162 core material Substances 0.000 claims description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 3
- 244000146553 Ceiba pentandra Species 0.000 claims description 3
- 235000003301 Ceiba pentandra Nutrition 0.000 claims description 3
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 claims description 3
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 claims description 3
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 3
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 3
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 3
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 3
- 229960000583 acetic acid Drugs 0.000 claims description 3
- 238000007792 addition Methods 0.000 claims description 3
- 239000004202 carbamide Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000001112 coagulating effect Effects 0.000 claims description 3
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 3
- 238000004108 freeze drying Methods 0.000 claims description 3
- 239000012362 glacial acetic acid Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 3
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 3
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical compound C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 3
- 238000009210 therapy by ultrasound Methods 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims description 3
- 230000001804 emulsifying effect Effects 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 abstract description 13
- 238000005192 partition Methods 0.000 abstract description 12
- 239000011148 porous material Substances 0.000 abstract description 4
- 239000012466 permeate Substances 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 13
- XTIIITNXEHRMQL-UHFFFAOYSA-N tripotassium methoxy(trioxido)silane Chemical compound [K+].[K+].[K+].CO[Si]([O-])([O-])[O-] XTIIITNXEHRMQL-UHFFFAOYSA-N 0.000 description 8
- XEVRDFDBXJMZFG-UHFFFAOYSA-N carbonyl dihydrazine Chemical compound NNC(=O)NN XEVRDFDBXJMZFG-UHFFFAOYSA-N 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 230000000844 anti-bacterial effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- LRWZZZWJMFNZIK-UHFFFAOYSA-N 2-chloro-3-methyloxirane Chemical compound CC1OC1Cl LRWZZZWJMFNZIK-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000003958 fumigation Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 239000001095 magnesium carbonate Substances 0.000 description 2
- 235000014380 magnesium carbonate Nutrition 0.000 description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical class [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 229910052599 brucite Inorganic materials 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004017 vitrification Methods 0.000 description 1
- 238000001238 wet grinding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/30—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing magnesium cements or similar cements
- C04B28/32—Magnesium oxychloride cements, e.g. Sorel cement
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
- C04B40/0046—Premixtures of ingredients characterised by their processing, e.g. sequence of mixing the ingredients when preparing the premixtures
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5053—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials non-oxide ceramics
- C04B41/5062—Borides, Nitrides or Silicides
- C04B41/5066—Silicon nitride
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/65—Coating or impregnation with inorganic materials
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/941—Building elements specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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Abstract
The invention discloses a light fireproof building material and a preparation method thereof, and relates to the technical field of fireproof building boards. The invention is used for solving the problem that the fireproof building board in the prior art has no corrosion resistance, heat insulation and gas purification functions by improving the corrosion resistance, heat insulation and the matched components on the premise of meeting the mechanical property; the light fireproof core layer and the light purifying surface layer both take light burned magnesia as main components, and are compounded with magnesium chloride, vitrified micro bubbles, methyl potassium silicate and mortar fiber, and the difference is that the light purifying surface layer is internally added with heat-insulating air-purifying emulsion; the heat-insulating gas-purifying emulsion permeates into lattice pores of magnesium oxide, so that the heat insulation and gas purification functions of the building material are improved; after the surface of the light purification surface layer is sprayed with the anti-corrosion heat-insulating coating, the anti-corrosion and heat-insulating performances of the building material are further improved, and the light purification surface layer is suitable for being used as an inner partition wall of various building sites.
Description
Technical Field
The invention relates to the technical field of fireproof building boards, in particular to a light fireproof building material and a preparation method thereof.
Background
The light fireproof partition board is a novel partition board for a modern building partition wall, and is suitable for the building fields of heat-insulating houses, hotels, warehouses of steel structure plants, offices, workshop construction and the like. The light partition board has strong plasticity, and can be slotted, wire-laid, nailed, punched, cut and the like according to different construction requirements. The light partition board has the advantages of high shock resistance, high freezing resistance, high plasticity, fireproof performance, high moistureproof performance, high heat and sound insulating performance and long service life.
The invention patent with the authority of publication number CN105254272B discloses a preparation method of a fireproof heat-insulating partition board, and the obtained fireproof heat-insulating partition board has the performance advantages of light weight, rapid setting and hardening, high strength, heat preservation, heat insulation, fire resistance, ageing resistance, acid and alkali resistance and the like, and the environment-friendly advantages of no toxicity, no harm, no pollution, no radiation and the like by limiting the slurry raw material proportion of the fireproof heat-insulating partition board and the curing process in the preparation process; the fireproof heat-preservation partition board is widely applied to internal partition walls in various places, and can greatly reduce the load of a main body structure. However, the following technical problems have been found in the study of light fireproof building boards comprising magnesium oxide as a main component in the prior art: on the premise of meeting the mechanical properties, the functions of corrosion resistance, heat insulation and gas purification are further improved without a corrosion-resistant heat-insulating coating and by improving the matched components.
Disclosure of Invention
The invention aims to provide a light fireproof building material and a preparation method thereof, which are used for solving the technical problems that the corrosion resistance, the heat insulation and the gas purification functions are further improved by not improving the corrosion resistance, the heat insulation and the components under the premise of meeting the mechanical property in the prior art.
The aim of the invention can be achieved by the following technical scheme:
the invention provides a light fireproof building material, which comprises an anti-corrosion heat-insulating coating, a light purification surface layer and a light fireproof core layer which are sequentially formed from outside to inside; the anti-corrosion heat-insulating coating is formed by spraying anti-corrosion heat-insulating coating on the surface of the light purification surface layer and drying; the light purification surface layer is prepared from the following components in parts by weight: 85 to 110 parts of light burned magnesia, 1 to 5 parts of magnesium chloride, 12 to 25 parts of vitrified micro bubble, 3 to 7 parts of methyl potassium silicate, 6 to 13 parts of heat insulation gas-purifying emulsion and 0.6 to 3 parts of mortar fiber; the light fireproof core layer is prepared from the following components in parts by weight: 96-120 parts of light burned magnesium oxide, 4-9 parts of magnesium chloride, 16-30 parts of vitrified micro bubble, 2-6 parts of methyl potassium silicate and 2-7 parts of mortar fiber; wherein the mortar fiber is polypropylene monofilament with the length of 3-6 mm, the elongation at break of 60% and the breaking strength of 280MPa.
The light fireproof building material of the invention uses the main structures of the light fireproof core layer and the light purification surface layer to meet the requirements of tensile strength and breaking strength, and the light fireproof core layer and the light purification surface layer both use light burned magnesia as main components, and are compounded with magnesium chloride, vitrified microbeads, methyl potassium silicate and mortar fiber, and the difference is that the heat insulation purified air emulsion is added in the light purification surface layer.
Specifically, the light burned magnesia is obtained by calcining magnesium hydroxide extracted from magnesite, brucite, seawater and brine at about 800-1000 ℃, and can be used for manufacturing light magnesia cement, magnesite building material products, heat insulation materials and the like due to loose texture and high chemical activity; the vitrified microbead is an inorganic vitreous mineral material, is processed by a multi-stage silicon carbide electric heating tube type production process, is in an irregular spheroid particle, has an internal porous cavity structure, is sealed by surface vitrification and smooth in gloss, has the excellent characteristics of light weight, heat insulation, fire resistance, high and low temperature resistance, ageing resistance, small water absorption and the like, is an environment-friendly high-performance inorganic light heat insulation material, can well permeate into lattice pores of magnesium oxide, and improves the fire resistance, heat insulation and hydrophobic performance; the potassium methyl silicate reacts with carbon dioxide or acidic substances in the air to form active substances polymethyl silicic acid, so that the invasion of moisture is avoided, and the waterproof and ageing-resistant performances of the building material are improved; the mortar fiber has good elongation at break and breaking strength, and after being distributed between crystal lattices of magnesium oxide and other auxiliary agents in an unordered way, the mortar fiber avoids the slippage of aggregate, forms network winding, and increases the overall strength and toughening crack resistance of the building material.
The heat-insulating purified gas emulsion is added in the light purification surface layer and penetrates into the lattice pores of the magnesium oxide, so that the heat insulation and gas purification functions of the building material are improved; after the surface of the light purifying surface layer is sprayed with the anti-corrosion heat-insulating coating, the anti-corrosion and heat-insulating performances of the building material are further improved.
Further, the preparation method of the anti-corrosion heat-insulating coating comprises the following steps:
uniformly mixing silicon nitride powder, fumed silica powder, aluminum oxide powder, single-layer molybdenum disulfide powder and expanded graphite to obtain mixed powder, wherein the mixed powder is prepared according to a ball-to-material ratio of 10:1, mixing the mixed powder with zirconia grinding balls, placing the mixture in a ball milling tank, adding ethanol with the mass 3-5 times of that of the mixed powder, charging argon, ball milling for 20-40 min at the rotating speed of 1000-1500 rpm, and drying the ball milling material to constant weight at 90 ℃ to obtain anti-corrosion heat insulation powder;
according to the weight portions, adding 1 to 3 portions of butyl stearate and 0.5 to 2 portions of polyurethane leveling agent into 30 to 50 portions of water, uniformly stirring, adding 25 to 36 portions of anti-corrosion heat insulation powder, stirring for 20 minutes, adding 20 to 32 portions of epoxy resin emulsion, 1 to 3 portions of polyacrylamide and 1 to 3 portions of (polyquaternium-2) diamino urea polymer, and uniformly mixing to obtain the anti-corrosion heat insulation coating.
Further, the mass ratio of the silicon nitride powder, the fumed silica powder, the aluminum oxide powder, the single-layer molybdenum disulfide powder and the expanded graphite is 3-5: 1 to 3:0.3 to 0.8:0.1 to 0.3:0.05 to 0.1.
Further, the preparation method of the heat-insulating purified gas emulsion comprises the following steps:
mixing 1g of purified cellulose with 10g of mixed solution, stirring for 20min, dropwise adding 5mL of epichlorohydrin, uniformly stirring, standing at-15 ℃ for 24 hours, placing in a 75wt% ethanol solution for coagulating bath, and washing with distilled water to obtain epoxidized cellulose;
dissolving 1g of beta-cyclodextrin in 30wt% sodium hydroxide solution, adding epoxidized cellulose, standing for 12 hours, performing ultrasonic vibration treatment at 50 ℃ for 2 hours, standing to room temperature, washing with distilled water, and freeze-drying at-15 ℃ to obtain cellulose-loaded cyclodextrin;
immersing cellulose loaded cyclodextrin in the essential oil solution for 6 hours, taking out, cleaning with ethanol, and vacuum drying to obtain purified gas heat insulation gel; uniformly stirring the purified gas heat-insulating gel and the heat-insulating film-forming emulsion according to the mass ratio of 1:5, and carrying out ultrasonic treatment for 30min to obtain the heat-insulating purified gas emulsion.
Further, the preparation method of the purified cellulose comprises the following steps: 10g of kapok fiber is placed in a beaker, 50mL of sodium hypochlorite solution with the concentration of 6wt% and 50mL of glacial acetic acid solution with the concentration of 6mol/L are added, stirring is carried out for 2 hours at normal temperature, decompression suction filtration is carried out, a filter cake is immersed in sodium hydroxide solution with the concentration of 5wt%, stirring is carried out for 2 hours at the temperature of 90 ℃, decompression suction filtration is carried out, the filter cake is added into hydrochloric acid solution with the concentration of 300mL and 3wt%, distilled water is used for washing the filter cake to be neutral, and purified cellulose with the length of 0.1-0.3 mm is obtained after normal temperature drying is carried out.
Further, the preparation method of the heat-insulating film-forming emulsion comprises the following steps: 3-phenylpropene, octafluoropentyl acrylate, methyl methacrylate, acrylic acid, sodium dodecyl polyoxyethylene ether sulfate and deionized water are mixed according to a mass ratio of 60:75:5:3:0.6:30, adding the mixture into a beaker, stirring and emulsifying the mixture to obtain a pre-emulsion; 3g of sodium bicarbonate, 4g of sodium dodecyl sulfate, 1g of potassium persulfate and 1200g of deionized water are added into a three-neck flask, the temperature is raised to 90 ℃, 160g of pre-emulsion is slowly added into a dropping funnel, and the mixture is stirred for 2 hours after the addition is completed, so as to obtain the heat-insulating film-forming emulsion.
Further, the mixed solution is prepared from sodium hydroxide, urea and water according to a mass ratio of 1:1.5:10, mixing; the essential oil solution is prepared from 1g of lemon essential oil and 50wt% of ethanol water solution according to the mass ratio of 1:3, mixing to obtain the product.
The invention also provides a preparation method of the light fireproof building material, which comprises the following steps:
s1, mixing and stirring light-burned magnesium oxide and magnesium chloride uniformly according to the raw material composition of a light fireproof core layer to obtain a mixture a, and mixing and stirring vitrified microbeads, methyl potassium silicate and mortar fibers uniformly to obtain a mixture b; adding the mixture b into the mixture a within 20-30 min, and uniformly stirring to obtain a light fireproof core material;
s2, according to the raw material composition of the light purification surface layer, mixing and stirring light-burned magnesium oxide, magnesium chloride and vitrified micro bubbles uniformly to obtain a mixture c, and mixing and stirring methyl potassium silicate, heat-insulating purified gas emulsion and mortar fiber uniformly to obtain a mixture d; adding the mixture d into the mixture c within 30-50 min, and uniformly stirring to obtain a light purified surface layer material;
s3, pouring the light fireproof core layer material into a mold, strickling and rolling, pouring the light purification surface layer material, strickling and rolling, pressing and forming at 40-60 ℃ under 5-10 MPa, and demolding to obtain a light fireproof building material semi-finished product;
and S4, curing the semi-finished product of the light fireproof building material for 7 days at the temperature of 25-35 ℃ and the relative humidity of 60-70%, spraying the anti-corrosion heat-insulating coating on the surface of the light purification surface layer, and drying at 90 ℃ for 24 hours to form the anti-corrosion heat-insulating coating, thereby obtaining the finished product of the light fireproof building material.
The invention has the following beneficial effects:
1. the light fireproof building material of the invention uses the main structures of the light fireproof core layer and the light purification surface layer to meet the requirements of mechanical properties such as tensile strength, breaking strength and the like, and the light fireproof core layer and the light purification surface layer both use light burned magnesia as main components, and are compounded with magnesium chloride, vitrified microbeads, methyl potassium silicate and mortar fiber, and the difference is that the heat insulation purified air emulsion is added in the light purification surface layer; the heat-insulating gas-purifying emulsion permeates into lattice pores of magnesium oxide, so that the heat insulation and gas purification functions of the building material are improved; after the surface of the light purification surface layer is sprayed with the anti-corrosion heat-insulating coating, the anti-corrosion and heat-insulating performances of the building material are further improved, and the light purification surface layer is suitable for being used as an inner partition wall of various building sites.
2. The anticorrosive heat-insulating coating is prepared from a plurality of heat-insulating and heat-insulating infrared radiation materials such as silicon nitride powder, fumed silica and aluminum oxide, and is prepared by wet grinding and drying under the friction-resistant lubrication action of molybdenum disulfide and the action of expanding the surface area and the surface energy of expanded graphite; the anti-corrosion heat-insulating powder is uniformly dispersed after being mixed with a heat stabilizer butyl stearate, a polyurethane leveling agent, an adhesive epoxy resin emulsion, a dispersing agent polyacrylamide and a cationic surfactant (polyquaternary ammonium salt-2) diamino urea polymer, and then the anti-corrosion heat-insulating coating which is easy to level and stable and compact in shape is formed by spray drying.
3. The heat-insulating air-purifying emulsion is prepared by epoxidizing purified cellulose with epoxy chloropropane and then loading beta-cyclodextrin, then coating the lemon essential oil with beta-cyclodextrin, introducing the lemon essential oil into a high molecular chain of the cellulose, so that the cellulose has the functions of slowly releasing the lemon essential oil for resisting bacteria and purifying gas, and meanwhile, the cellulose bundles are tightly combined due to the crosslinking effect of the epoxy chloropropane, so that the heat-insulating air-purifying emulsion has good heat stability and film-forming performance, and aromatic slow-release antibacterial air-purifying films are formed inside and outside a light purification surface layer after the heat-insulating air-purifying emulsion is dispersed, thereby improving the antibacterial and gas-purifying performances of the light purification surface layer.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The light fireproof building material comprises an anti-corrosion heat-insulating coating, a light purification surface layer and a light fireproof core layer which are sequentially formed from outside to inside; the anti-corrosion heat-insulating coating is formed by spraying anti-corrosion heat-insulating coating on the surface of the light purification surface layer and drying; the light purification surface layer is prepared from the following components in parts by weight: 982g of light burned magnesia, 36g of magnesium chloride, 192g of vitrified micro bubble, 50g of potassium methyl silicate, 97g of heat insulation gas-purifying emulsion and 18g of mortar fiber; the light fireproof core layer is prepared from the following components in parts by weight: 1110g of light burned magnesia, 65g of magnesium chloride, 250g of vitrified micro bubbles, 42g of potassium methyl silicate and 38g of mortar fiber; wherein the mortar fiber is polypropylene monofilament with the length of 3-6 mm, the elongation at break of 60% and the breaking strength of 280MPa.
The preparation method of the anti-corrosion heat-insulating coating comprises the following steps:
4.2g of silicon nitride powder, 1.7g of fumed silica powder, 0.6g of alumina powder, 0.16g of single-layer molybdenum disulfide powder and 0.08g of expanded graphite are uniformly mixed to obtain mixed powder according to a ball-to-charge ratio of 10:1, mixing the mixed powder with zirconia grinding balls, placing the mixture in a ball milling tank, adding 27g of ethanol, charging argon, ball milling for 30min at a rotating speed of 1200rpm, and drying the ball milling material at 90 ℃ until the weight is constant to obtain anti-corrosion heat insulation powder;
adding 2.2g butyl stearate and 1.2g polyurethane leveling agent into 40g water, uniformly stirring, adding 30g anti-corrosion heat-insulation powder, stirring for 20min, adding 46g epoxy resin emulsion, 1.8g polyacrylamide and 2g (polyquaternium-2) diamino urea polymer, and uniformly mixing to obtain the anti-corrosion heat-insulation coating.
The preparation method of the heat-insulating purified gas emulsion comprises the following steps:
60g of 3-phenylpropene, 75g of octafluoropentyl acrylate, 5g of methyl methacrylate, 3g of acrylic acid, 0.6g of sodium dodecyl polyoxyethylene ether sulfate and 30g of deionized water are added into a beaker, stirred and emulsified to obtain a pre-emulsion; adding 3g of sodium bicarbonate, 4g of sodium dodecyl sulfate, 1g of potassium persulfate and 1200g of deionized water into a three-neck flask, heating to 90 ℃, slowly dripping 160g of pre-emulsion into a dripping funnel, and preserving heat and stirring for 2 hours after dripping is finished to obtain a heat-insulating film-forming emulsion;
10g of kapok fiber is placed in a beaker, 50mL of sodium hypochlorite solution with the concentration of 6wt% and 50mL of glacial acetic acid solution with the concentration of 6mol/L are added, stirring is carried out for 2 hours at normal temperature, decompression suction filtration is carried out, a filter cake is immersed in sodium hydroxide solution with the concentration of 5wt%, stirring is carried out for 2 hours at the temperature of 90 ℃, decompression suction filtration is carried out, the filter cake is added into hydrochloric acid solution with the concentration of 300mL and 3wt%, distilled water is used for washing the filter cake to be neutral, and purified cellulose with the length of 0.1-0.3 mm is obtained after drying at normal temperature;
mixing 1g of purified cellulose with 10g of mixed solution, stirring for 20min, dropwise adding 5mL of epichlorohydrin, uniformly stirring, standing at-15 ℃ for 24 hours, placing in a 75wt% ethanol solution for coagulating bath, and washing with distilled water to obtain epoxidized cellulose; wherein the mixed solution is prepared from sodium hydroxide, urea and water according to the mass ratio of 1:1.5:10, mixing;
dissolving 1g of beta-cyclodextrin in 30wt% sodium hydroxide solution, adding epoxidized cellulose, standing for 12 hours, performing ultrasonic vibration treatment at 50 ℃ for 2 hours, standing to room temperature, washing with distilled water, and freeze-drying at-15 ℃ to obtain cellulose-loaded cyclodextrin;
immersing cellulose loaded cyclodextrin in the essential oil solution for 6 hours, taking out, cleaning with ethanol, and vacuum drying to obtain purified gas heat insulation gel; the essential oil solution is prepared from 1g of lemon essential oil and 50wt% of ethanol water solution according to the mass ratio of 1:3, mixing to obtain the product;
uniformly stirring the purified gas heat-insulating gel and the heat-insulating film-forming emulsion according to the mass ratio of 1:5, and carrying out ultrasonic treatment for 30min to obtain the heat-insulating purified gas emulsion.
The preparation method of the light fireproof building material comprises the following steps:
s1, mixing and stirring light-burned magnesium oxide and magnesium chloride uniformly according to the raw material composition of a light fireproof core layer to obtain a mixture a, and mixing and stirring vitrified microbeads, methyl potassium silicate and mortar fibers uniformly to obtain a mixture b; adding the mixture b into the mixture a within 25min, and uniformly stirring to obtain a light fireproof core material;
s2, according to the raw material composition of the light purification surface layer, mixing and stirring light-burned magnesium oxide, magnesium chloride and vitrified micro bubbles uniformly to obtain a mixture c, and mixing and stirring methyl potassium silicate, heat-insulating purified gas emulsion and mortar fiber uniformly to obtain a mixture d; adding the mixture d into the mixture c within 40min, and uniformly stirring to obtain a light purified surface layer material;
s3, pouring the light fireproof core layer material into a mold, strickling and rolling, pouring the light purification surface layer material, strickling and rolling, pressing and forming at 52 ℃ under the pressure of 8MPa, and demolding to obtain a light fireproof building material semi-finished product;
and S4, curing the light fireproof building material semi-finished product for 7 days at the temperature of 32 ℃ and the relative humidity of 70%, spraying an anti-corrosion heat-insulating coating on the surface of the light purification surface layer, and drying at 90 ℃ for 24 hours to form the anti-corrosion heat-insulating coating, thereby obtaining the light fireproof building material finished product.
Example 2
The light fireproof building material comprises an anti-corrosion heat-insulating coating, a light purification surface layer and a light fireproof core layer which are sequentially formed from outside to inside; the anti-corrosion heat-insulating coating is formed by spraying anti-corrosion heat-insulating coating on the surface of the light purification surface layer and drying; the light purification surface layer is prepared from the following components in parts by weight: 867g of light burned magnesia, 12g of magnesium chloride, 130g of vitrified micro bubble, 35g of potassium methyl silicate, 65g of heat insulation gas-purifying emulsion and 8g of mortar fiber; the light fireproof core layer is prepared from the following components in parts by weight: 985g of light burned magnesia, 43g of magnesium chloride, 173g of vitrified micro bubbles, 25g of potassium methyl silicate and 23g of mortar fiber; wherein the mortar fiber is polypropylene monofilament with the length of 3-6 mm, the elongation at break of 60% and the breaking strength of 280MPa.
The preparation method of the anti-corrosion heat-insulating coating comprises the following steps:
4.7g of silicon nitride powder, 2.8g of fumed silica powder, 0.8g of alumina powder, 0.18g of single-layer molybdenum disulfide powder and 0.09g of expanded graphite are uniformly mixed to obtain mixed powder according to a ball-to-charge ratio of 10:1, mixing the mixed powder with zirconia grinding balls, placing the mixture in a ball milling tank, adding 34g of ethanol, filling argon, ball milling for 30min at a rotating speed of 1400rpm, and drying the ball milling material at 90 ℃ until the weight is constant to obtain anti-corrosion heat insulation powder;
adding 2.6g butyl stearate and 1.5g polyurethane leveling agent into 36g water, uniformly stirring, adding 32g anti-corrosion heat-insulation powder, stirring for 20min, adding 30g epoxy resin emulsion, 2.5g polyacrylamide and 2.4g (polyquaternium-2) diamino urea polymer, and uniformly mixing to obtain the anti-corrosion heat-insulation coating.
The preparation method of the heat-insulating gas-purifying emulsion is the same as that of example 1.
The preparation method of the light fireproof building material comprises the following steps:
s1, mixing and stirring light-burned magnesium oxide and magnesium chloride uniformly according to the raw material composition of a light fireproof core layer to obtain a mixture a, and mixing and stirring vitrified microbeads, methyl potassium silicate and mortar fibers uniformly to obtain a mixture b; adding the mixture b into the mixture a within 28min, and uniformly stirring to obtain a light fireproof core material;
s2, according to the raw material composition of the light purification surface layer, mixing and stirring light-burned magnesium oxide, magnesium chloride and vitrified micro bubbles uniformly to obtain a mixture c, and mixing and stirring methyl potassium silicate, heat-insulating purified gas emulsion and mortar fiber uniformly to obtain a mixture d; adding the mixture d into the mixture c within 37min, and uniformly stirring to obtain a light purified surface layer material;
s3, pouring the light fireproof core layer material into a mold, strickling and rolling, pouring the light purification surface layer material, strickling and rolling, pressing and forming at 52 ℃ under the pressure of 7MPa, and demolding to obtain a light fireproof building material semi-finished product;
and S4, curing the light fireproof building material semi-finished product for 7 days at the temperature of 32 ℃ and the relative humidity of 65%, spraying an anti-corrosion heat-insulating coating on the surface of the light purification surface layer, and drying at 90 ℃ for 24 hours to form the anti-corrosion heat-insulating coating, thereby obtaining the light fireproof building material finished product.
Example 3
The light fireproof building material comprises an anti-corrosion heat-insulating coating, a light purification surface layer and a light fireproof core layer which are sequentially formed from outside to inside; the anti-corrosion heat-insulating coating is formed by spraying anti-corrosion heat-insulating coating on the surface of the light purification surface layer and drying; the light purification surface layer is prepared from the following components in parts by weight: 1107g of light burned magnesium oxide, 48g of magnesium chloride, 245g of vitrified micro bubble, 68g of methyl potassium silicate, 122g of heat insulation gas-purifying emulsion and 28g of mortar fiber; the light fireproof core layer is prepared from the following components in parts by weight: 1180g of light burned magnesia, 85g of magnesium chloride, 286g of vitrified microbeads, 58g of potassium methyl silicate and 67g of mortar fiber; wherein the mortar fiber is polypropylene monofilament with the length of 3-6 mm, the elongation at break of 60% and the breaking strength of 280MPa.
The preparation method of the anti-corrosion heat-insulating coating comprises the following steps:
3.7g of silicon nitride powder, 2.8g of fumed silica powder, 0.7g of alumina powder, 0.2g of single-layer molybdenum disulfide powder and 0.09g of expanded graphite are uniformly mixed to obtain mixed powder according to a ball-to-charge ratio of 10:1, mixing the mixed powder with zirconia grinding balls, placing the mixture in a ball milling tank, adding 28g of ethanol, charging argon, ball milling for 40min at a rotating speed of 1100rpm, and drying the ball milling material at 90 ℃ until the weight is constant to obtain anti-corrosion heat insulation powder;
adding 1.7g of butyl stearate and 0.9g of polyurethane leveling agent into 46g of water, uniformly stirring, adding 28g of anti-corrosion heat-insulation powder, stirring for 20min, adding 27g of epoxy resin emulsion, 1.8g of polyacrylamide and 1.9g of (polyquaternium-2) diamino urea polymer, and uniformly mixing to obtain the anti-corrosion heat-insulation coating.
The preparation method of the heat-insulating gas-purifying emulsion is the same as that of example 1.
The preparation method of the light fireproof building material comprises the following steps:
s1, mixing and stirring light-burned magnesium oxide and magnesium chloride uniformly according to the raw material composition of a light fireproof core layer to obtain a mixture a, and mixing and stirring vitrified microbeads, methyl potassium silicate and mortar fibers uniformly to obtain a mixture b; adding the mixture b into the mixture a within 20-30 min, and uniformly stirring to obtain a light fireproof core material;
s2, according to the raw material composition of the light purification surface layer, mixing and stirring light-burned magnesium oxide, magnesium chloride and vitrified micro bubbles uniformly to obtain a mixture c, and mixing and stirring methyl potassium silicate, heat-insulating purified gas emulsion and mortar fiber uniformly to obtain a mixture d; adding the mixture d into the mixture c within 50min, and uniformly stirring to obtain a light purified surface layer material;
s3, pouring the light fireproof core layer material into a mold, strickling and rolling, pouring the light purification surface layer material, strickling and rolling, pressing and forming at 57 ℃ under the pressure of 9MPa, and demolding to obtain a light fireproof building material semi-finished product;
and S4, curing the light fireproof building material semi-finished product for 7 days at the temperature of 35 ℃ and the relative humidity of 68%, spraying an anti-corrosion heat-insulating coating on the surface of the light purification surface layer, and drying at 90 ℃ for 24 hours to form the anti-corrosion heat-insulating coating, thereby obtaining the light fireproof building material finished product.
Example 4
The light fireproof building material comprises an anti-corrosion heat-insulating coating, a light purification surface layer and a light fireproof core layer which are sequentially formed from outside to inside; the anti-corrosion heat-insulating coating is formed by spraying anti-corrosion heat-insulating coating on the surface of the light purification surface layer and drying; the light purification surface layer is prepared from the following components in parts by weight: 935g of light burned magnesia, 37g of magnesium chloride, 176g of vitrified micro bubble, 46g of potassium methyl silicate, 88g of heat insulation gas-purifying emulsion and 21g of mortar fiber; the light fireproof core layer is prepared from the following components in parts by weight: 1074g of light burned magnesia, 72g of magnesium chloride, 236g of vitrified micro bubbles, 54g of potassium methyl silicate and 53g of mortar fiber; wherein the mortar fiber is polypropylene monofilament with the length of 3-6 mm, the elongation at break of 60% and the breaking strength of 280MPa.
The preparation method of the anti-corrosion heat-insulating coating comprises the following steps:
4.1g of silicon nitride powder, 2.6g of fumed silica powder, 0.4g of alumina powder, 0.15g of single-layer molybdenum disulfide powder and 0.07g of expanded graphite are uniformly mixed to obtain mixed powder according to a ball-to-charge ratio of 10:1, mixing the mixed powder with zirconia grinding balls, placing the mixture in a ball milling tank, adding 35g of ethanol, filling argon, ball milling for 22min at a rotating speed of 1500rpm, and drying the ball milling material at 90 ℃ until the weight is constant to obtain anti-corrosion heat insulation powder;
adding 2.5g butyl stearate and 1.8g polyurethane leveling agent into 43g water, uniformly stirring, adding 33g anti-corrosion heat-insulation powder, stirring for 20min, adding 27g epoxy resin emulsion, 2.4g polyacrylamide and 1.8g (polyquaternium-2) diamino urea polymer, and uniformly mixing to obtain the anti-corrosion heat-insulation coating.
The preparation method of the heat-insulating gas-purifying emulsion is the same as that of example 1.
The preparation method of the light fireproof building material comprises the following steps:
s1, mixing and stirring light-burned magnesium oxide and magnesium chloride uniformly according to the raw material composition of a light fireproof core layer to obtain a mixture a, and mixing and stirring vitrified microbeads, methyl potassium silicate and mortar fibers uniformly to obtain a mixture b; adding the mixture b into the mixture a within 20min, and uniformly stirring to obtain a light fireproof core layer material;
s2, according to the raw material composition of the light purification surface layer, mixing and stirring light-burned magnesium oxide, magnesium chloride and vitrified micro bubbles uniformly to obtain a mixture c, and mixing and stirring methyl potassium silicate, heat-insulating purified gas emulsion and mortar fiber uniformly to obtain a mixture d; adding the mixture d into the mixture c within 40min, and uniformly stirring to obtain a light purified surface layer material;
s3, pouring the light fireproof core layer material into a mold, strickling and rolling, pouring the light purification surface layer material, strickling and rolling, pressing and forming at 58 ℃ under the pressure of 9MPa, and demolding to obtain a light fireproof building material semi-finished product;
and S4, curing the light fireproof building material semi-finished product for 7 days at the temperature of 35 ℃ and the relative humidity of 70%, spraying an anti-corrosion heat-insulating coating on the surface of the light purification surface layer, and drying at 90 ℃ for 24 hours to form the anti-corrosion heat-insulating coating, thereby obtaining the light fireproof building material finished product.
Comparative example 1
The light-weight fireproof building material of this comparative example is different from example 1 in that the surface of the light-weight purification surface layer is not sprayed with an anticorrosive heat-insulating coating.
Comparative example 2
The light-weight fire-resistant construction material of this comparative example differs from example 1 in that the light-weight purification layer was not added with the insulating air-purifying emulsion.
Comparative example 3
The light-weight fireproof building material of this comparative example is different from example 1 in that no mortar fiber is added to both the light-weight purification surface layer and the light-weight fireproof core layer.
Performance testing
The light fireproof building materials with the thicknesses of the light purification surface layers and the light fireproof core layers of 8mm and 10mm are prepared from the examples 1-4 and the comparative examples 1-3, the flexural strength, the impact strength, the dry shrinkage, the wet expansion and the combustion performance are tested according to the standard JC/T2509-2019 fire-proof plate for container houses, the corrosion resistance is obtained by fumigating the light fireproof building materials with salt fog at 35 ℃ and 3wt percent for 24 hours, the absolute values of the flexural strength and the change rate of the impact strength are tested, and the specific test results are shown in the following table:
as can be seen from the test results of the table, compared with the comparative examples, the light fireproof building material prepared by the embodiment of the invention has excellent flexural strength and impact strength of mechanical properties, which indicates that the use requirements of the mechanical properties can be met; the dry shrinkage and wet expansion performance are smaller than those of the comparative examples, which shows that the stability is better under the condition of room temperature or humidity, the water resistance and the oxidation resistance are better, and the combustion performance meets the A1 level requirement; in the aspect of corrosion resistance, the absolute value of the flexural strength change rate and the absolute value of the impact strength change rate after salt mist fumigation are smaller than those of a comparative example, so that the corrosion resistance of hydrochloric acid is better, and the salt mist fumigation type salt spray is suitable for being used in a long-term weak acid alkaline environment.
In comparative example 1, due to the lack of the anti-corrosion heat-insulating coating, a heat-insulating and corrosion-resistant film layer cannot be formed on the surface of the light purification surface layer, so that the combustion performance and the corrosion resistance are reduced; in the comparative example 2, the heat-insulating air-purifying emulsion is not added to the light purifying surface layer, so that a closely combined cellulose tube bundle and a heat-stable film layer cannot be formed, and the effects of slow release of antibacterial and air-purifying are not achieved, so that the heat stability, the combustion performance and the corrosion resistance are reduced; in comparative example 3, no mortar fiber is added into the light purification surface layer and the light fireproof core layer, and the mortar fiber cannot be randomly distributed in the crystal lattice of magnesium oxide to form network winding, so that the overall strength, the toughening and crack resistance of the building material are obviously reduced, and the corrosion resistance and the flame resistance are also reduced.
The foregoing is merely illustrative and explanatory of the invention, as it is well within the scope of the invention as claimed, as it relates to various modifications, additions and substitutions for those skilled in the art, without departing from the inventive concept and without departing from the scope of the invention as defined in the accompanying claims.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (7)
1. The light fireproof building material is characterized by comprising an anti-corrosion heat-insulating coating, a light purification surface layer and a light fireproof core layer which are sequentially formed from outside to inside; the anti-corrosion heat-insulating coating is formed by spraying anti-corrosion heat-insulating coating on the surface of the light purification surface layer and drying; the light purification surface layer is prepared from the following components in parts by weight: 85-110 parts of light burned magnesium oxide, 1-5 parts of magnesium chloride, 12-25 parts of vitrified microbeads, 3-7 parts of methyl potassium silicate, 6-13 parts of heat insulation gas-purifying emulsion and 0.6-3 parts of mortar fiber; the light fireproof core layer is prepared from the following components in parts by weight: 96-120 parts of light burned magnesium oxide, 4-9 parts of magnesium chloride, 16-30 parts of vitrified micro bubbles, 2-6 parts of methyl potassium silicate and 2-7 parts of mortar fiber; wherein the mortar fiber is polypropylene monofilament, the length is 3-6 mm, the elongation at break is 60%, and the breaking strength is 280MPa;
the preparation method of the anti-corrosion heat-insulating coating comprises the following steps:
uniformly mixing silicon nitride powder, fumed silica powder, aluminum oxide powder, single-layer molybdenum disulfide powder and expanded graphite to obtain mixed powder, wherein the mixed powder is prepared according to a ball-to-material ratio of 10:1, mixing the mixed powder with zirconia grinding balls, placing the mixture in a ball milling tank, adding ethanol with the mass 3-5 times of that of the mixed powder, filling argon, ball milling for 20-40 min at the rotating speed of 1000-1500 rpm, and drying the ball milling material to constant weight at 90 ℃ to obtain anti-corrosion heat insulation powder;
according to parts by weight, adding 1-3 parts of butyl stearate and 0.5-2 parts of polyurethane leveling agent into 30-50 parts of water, uniformly stirring, adding 25-36 parts of anti-corrosion heat insulation powder, stirring for 20min, adding 20-32 parts of epoxy resin emulsion, 1-3 parts of polyacrylamide and 1-3 parts of polyquaternium-2, and uniformly mixing to obtain the anti-corrosion heat insulation coating.
2. The light fireproof building material according to claim 1, wherein the mass ratio of the silicon nitride powder, the fumed silica powder, the aluminum oxide powder, the single-layer molybdenum disulfide powder and the expanded graphite is 3-5: 1-3: 0.3 to 0.8:0.1 to 0.3:0.05 to 0.1.
3. A lightweight fire resistant construction material as in claim 1, wherein said method of preparing said insulating air purifying emulsion comprises the steps of:
mixing 1g of purified cellulose with 10g of mixed solution, stirring for 20min, dropwise adding 5mL of epichlorohydrin, uniformly stirring, standing at-15 ℃ for 24 hours, placing in a 75wt% ethanol solution for coagulating bath, and washing with distilled water to obtain epoxidized cellulose;
dissolving 1g of beta-cyclodextrin in 30wt% sodium hydroxide solution, adding epoxidized cellulose, standing for 12 hours, performing ultrasonic vibration treatment at 50 ℃ for 2 hours, standing to room temperature, washing with distilled water, and freeze-drying at-15 ℃ to obtain cellulose-loaded cyclodextrin;
immersing cellulose loaded cyclodextrin in the essential oil solution for 6 hours, taking out, cleaning with ethanol, and vacuum drying to obtain purified gas heat insulation gel; uniformly stirring the purified gas heat-insulating gel and the heat-insulating film-forming emulsion according to the mass ratio of 1:5, and carrying out ultrasonic treatment for 30min to obtain the heat-insulating purified gas emulsion.
4. A lightweight fire resistant construction material according to claim 3, wherein said purified cellulose is prepared by the process of: 10g of kapok fiber is placed in a beaker, 50mL of sodium hypochlorite solution with the concentration of 6wt% and 50mL of glacial acetic acid solution with the concentration of 6mol/L are added, stirring is carried out for 2 hours at normal temperature, decompression suction filtration is carried out, a filter cake is immersed in sodium hydroxide solution with the concentration of 5wt%, stirring is carried out for 2 hours at the temperature of 90 ℃, decompression suction filtration is carried out, the filter cake is added into hydrochloric acid solution with the concentration of 300mL and 3wt%, distilled water is used for washing the filter cake to be neutral, and purified cellulose with the length of 0.1-0.3 mm is obtained after drying at normal temperature.
5. A lightweight fire resistant construction material as claimed in claim 3, wherein said heat insulating film forming emulsion is prepared by the process of: 3-phenylpropene, octafluoropentyl acrylate, methyl methacrylate, acrylic acid, sodium dodecyl polyoxyethylene ether sulfate and deionized water are mixed according to a mass ratio of 60:75:5:3:0.6:30, adding the mixture into a beaker, stirring and emulsifying the mixture to obtain a pre-emulsion; 3g of sodium bicarbonate, 4g of sodium dodecyl sulfate, 1g of potassium persulfate and 1200g of deionized water are added into a three-neck flask, the temperature is raised to 90 ℃, 160g of pre-emulsion is slowly added into a dropping funnel, and the mixture is stirred for 2 hours after the addition is completed, so as to obtain the heat-insulating film-forming emulsion.
6. A lightweight fire-resistant building material as in claim 3, wherein said mixed solution is prepared from sodium hydroxide, urea, water in a mass ratio of 1:1.5:10, mixing; the essential oil solution is prepared from 1g of lemon essential oil and 50wt% of ethanol water solution according to the mass ratio of 1:3, mixing to obtain the product.
7. A method of making a lightweight fire resistant construction material as in claim 1, comprising the steps of:
s1, mixing and stirring light-burned magnesium oxide and magnesium chloride uniformly according to the raw material composition of a light fireproof core layer to obtain a mixture a, and mixing and stirring vitrified microbeads, methyl potassium silicate and mortar fibers uniformly to obtain a mixture b; adding the mixture b into the mixture a within 20-30 min, and uniformly stirring to obtain a light fireproof core material;
s2, according to the raw material composition of the light purification surface layer, mixing and stirring light-burned magnesium oxide, magnesium chloride and vitrified micro bubbles uniformly to obtain a mixture c, and mixing and stirring methyl potassium silicate, heat-insulating purified gas emulsion and mortar fiber uniformly to obtain a mixture d; adding the mixture d into the mixture c within 30-50 min, and uniformly stirring to obtain a light-weight purified surface layer material;
s3, pouring the light fireproof core layer material into a mold, strickling and rolling, pouring the light purification surface layer material, strickling and rolling, pressing and forming at 40-60 ℃ under the pressure of 5-10 MPa, and demolding to obtain a light fireproof building material semi-finished product;
and S4, curing the light fireproof building material semi-finished product for 7 days at the temperature of 25-35 ℃ and the relative humidity of 60-70%, spraying the anti-corrosion heat-insulating coating on the surface of the light purification surface layer, and drying at 90 ℃ for 24 hours to form the anti-corrosion heat-insulating coating, thereby obtaining the light fireproof building material.
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