CN108530011A - A kind of silica aerogel fire prevention, waterproof, environment-friendly insulating cream - Google Patents
A kind of silica aerogel fire prevention, waterproof, environment-friendly insulating cream Download PDFInfo
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- CN108530011A CN108530011A CN201810483390.0A CN201810483390A CN108530011A CN 108530011 A CN108530011 A CN 108530011A CN 201810483390 A CN201810483390 A CN 201810483390A CN 108530011 A CN108530011 A CN 108530011A
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 230000002265 prevention Effects 0.000 title claims abstract description 23
- 239000006071 cream Substances 0.000 title claims abstract description 22
- 239000004965 Silica aerogel Substances 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 55
- 238000002360 preparation method Methods 0.000 claims abstract description 39
- 239000004964 aerogel Substances 0.000 claims abstract description 31
- 239000002243 precursor Substances 0.000 claims abstract description 28
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000839 emulsion Substances 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims description 71
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 68
- 238000003756 stirring Methods 0.000 claims description 46
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 39
- 238000006243 chemical reaction Methods 0.000 claims description 38
- 239000002253 acid Substances 0.000 claims description 30
- 229920000742 Cotton Polymers 0.000 claims description 25
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 24
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 22
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 21
- 239000002904 solvent Substances 0.000 claims description 20
- 238000002156 mixing Methods 0.000 claims description 19
- 239000007921 spray Substances 0.000 claims description 18
- 230000032683 aging Effects 0.000 claims description 15
- 239000004088 foaming agent Substances 0.000 claims description 15
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 15
- 150000002910 rare earth metals Chemical class 0.000 claims description 15
- 239000004115 Sodium Silicate Substances 0.000 claims description 14
- 239000000919 ceramic Substances 0.000 claims description 14
- 239000007822 coupling agent Substances 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 150000003839 salts Chemical class 0.000 claims description 14
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 14
- 229920002522 Wood fibre Polymers 0.000 claims description 13
- 239000010451 perlite Substances 0.000 claims description 13
- 235000019362 perlite Nutrition 0.000 claims description 13
- 239000000835 fiber Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 11
- 235000019441 ethanol Nutrition 0.000 claims description 11
- 239000000243 solution Substances 0.000 claims description 11
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 10
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 9
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 9
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 239000000440 bentonite Substances 0.000 claims description 9
- 229910000278 bentonite Inorganic materials 0.000 claims description 9
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 9
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- 229940088417 precipitated calcium carbonate Drugs 0.000 claims description 8
- 229920003063 hydroxymethyl cellulose Polymers 0.000 claims description 7
- 229940031574 hydroxymethyl cellulose Drugs 0.000 claims description 7
- 235000019795 sodium metasilicate Nutrition 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 230000004048 modification Effects 0.000 claims description 6
- 238000012986 modification Methods 0.000 claims description 6
- 229920002401 polyacrylamide Polymers 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 3
- 239000004604 Blowing Agent Substances 0.000 claims description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- 239000000908 ammonium hydroxide Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 3
- 229910017604 nitric acid Inorganic materials 0.000 claims description 3
- 235000006408 oxalic acid Nutrition 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims 1
- 238000004321 preservation Methods 0.000 abstract description 12
- 238000001035 drying Methods 0.000 abstract description 6
- 238000004134 energy conservation Methods 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000007767 bonding agent Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 28
- 238000009413 insulation Methods 0.000 description 21
- 230000008569 process Effects 0.000 description 13
- 238000005187 foaming Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 8
- 239000012774 insulation material Substances 0.000 description 8
- 238000004898 kneading Methods 0.000 description 8
- 235000019353 potassium silicate Nutrition 0.000 description 8
- 239000011230 binding agent Substances 0.000 description 6
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000004570 mortar (masonry) Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 239000006210 lotion Substances 0.000 description 5
- 230000001404 mediated effect Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- 239000011343 solid material Substances 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 4
- 229920002678 cellulose Polymers 0.000 description 4
- 239000001913 cellulose Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 description 4
- 229940023462 paste product Drugs 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 239000004035 construction material Substances 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 150000000703 Cerium Chemical class 0.000 description 2
- 159000000013 aluminium salts Chemical class 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- JJQZDUKDJDQPMQ-UHFFFAOYSA-N dimethoxy(dimethyl)silane Chemical compound CO[Si](C)(C)OC JJQZDUKDJDQPMQ-UHFFFAOYSA-N 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 150000002603 lanthanum Chemical class 0.000 description 2
- VTACLVUOTMPORB-UHFFFAOYSA-N n,n-bis(trimethylsilyl)acetamide Chemical class CC(=O)N([Si](C)(C)C)[Si](C)(C)C VTACLVUOTMPORB-UHFFFAOYSA-N 0.000 description 2
- 239000002674 ointment Substances 0.000 description 2
- -1 oxygroup alkane Chemical class 0.000 description 2
- JCVQKRGIASEUKR-UHFFFAOYSA-N triethoxy(phenyl)silane Chemical compound CCO[Si](OCC)(OCC)C1=CC=CC=C1 JCVQKRGIASEUKR-UHFFFAOYSA-N 0.000 description 2
- 150000003746 yttrium Chemical class 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 239000004113 Sepiolite Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000002742 anti-folding effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000010420 art technique Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 210000000085 cashmere Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- SHFGJEQAOUMGJM-UHFFFAOYSA-N dialuminum dipotassium disodium dioxosilane iron(3+) oxocalcium oxomagnesium oxygen(2-) Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Na+].[Na+].[Al+3].[Al+3].[K+].[K+].[Fe+3].[Fe+3].O=[Mg].O=[Ca].O=[Si]=O SHFGJEQAOUMGJM-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- POPACFLNWGUDSR-UHFFFAOYSA-N methoxy(trimethyl)silane Chemical group CO[Si](C)(C)C POPACFLNWGUDSR-UHFFFAOYSA-N 0.000 description 1
- ARYZCSRUUPFYMY-UHFFFAOYSA-N methoxysilane Chemical compound CO[SiH3] ARYZCSRUUPFYMY-UHFFFAOYSA-N 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 125000001820 oxy group Chemical group [*:1]O[*:2] 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 235000019355 sepiolite Nutrition 0.000 description 1
- 229910052624 sepiolite Inorganic materials 0.000 description 1
- 230000036299 sexual function Effects 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000011895 specific detection Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000000352 supercritical drying Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 description 1
- PQDJYEQOELDLCP-UHFFFAOYSA-N trimethylsilane Chemical compound C[SiH](C)C PQDJYEQOELDLCP-UHFFFAOYSA-N 0.000 description 1
- 229940094989 trimethylsilane Drugs 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000003643 water by type Substances 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
- C04B28/24—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 alkyl, ammonium or metal silicates; containing silica sols
-
- 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
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- 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
-
- 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
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Silicon Compounds (AREA)
- Thermal Insulation (AREA)
Abstract
The invention belongs to energy conservation and environmental protection field of material technology more particularly to a kind of building and the silica aerogel fire prevention of industrial energy saving heat preservation, waterproof, environment-friendly insulating cream；The heat insulating paste adds aerogel precursor body in the preparation, using Ludox, organosilicon-modified acrylic emulsion as bonding agent, has the incomparable heat-proof quality of traditional material, in the present invention after heat insulating paste drying, with higher mechanical strength, fire prevention A1 ranks are realized, in addition, also there is preferable waterproof and low-cost advantage, a kind of new material is provided for building energy conservation, environmental protection and industrial energy saving.
Description
The application is the Chinese invention patent (applying date that number of patent application is 201710277592.5：04 month 2017 25
Day, patent name：A kind of silica aerogel fire prevention, waterproof, environment-friendly insulating cream and preparation method thereof) divisional application.
Technical field
The invention belongs to energy conservation and environmental protection field of material technology more particularly to a kind of buildings and industrial energy saving heat preservation to gas
Gel Precursor is the fire prevention of raw material preparation, waterproof, environment-friendly insulating cream.
Background technology
In recent years, building energy saving field gradually causes the concern of people, and traditional organic insulation material is since its is inflammable, burning
When the problems such as generating a large amount of pernicious gases, being difficult to degrade presence, the stage for the thermal insulation material that will certainly gradually fade out.And it is common
Inorganic heat insulation material, using cement, lime paste etc. as cementitious material, mechanical strength is higher, but thermal coefficient is high, heat insulation effect
Difference, and there are firm times it is shorter, shrinkage is big the problems such as.In addition the weak link of building exterior wall heat preserving is connecing for thermal insulation material
At seam, it may appear that heat bridge effect, and that there are the thermal coefficients of itself is larger, heat insulation effect is poor for currently used cement heat preserving mortar
The problem of, largely affect the thickness of building insulating layer.
The insulation of petrochemical industry high temperature pipe, tank top etc., the facilities such as the special-shaped radiator such as pump housing, valve is same
Face more problem.With the raising of temperature, to reach the requirement of temperature and pressure, thermic load increases, and operation cost increases；It passes
It unites silicates thermal insulation material structure force difference, the phenomenon that being susceptible to upper-thin-lower-thick makes pipeline be susceptible to hot seam, to band
Carry out serious heat loss.Common keeps the temperature tank body and pipeline with the additional color steel of rock wool heat-preservation material, is easy to happen heat preservation
Material absorbs water, and so that material is lost original heat-insulating property, on the other hand can lead to tank body and corrosive pipeline, and this
Corrosion often has stronger concealment and is difficult to detect, and is difficult often to perceive at the first time, easily causes the serious of burst
Leakage accident.Dangerous products caused by the annual whole world is broken down by the caused equipment of corrosion under insulation and pipeline reveal,
Loss caused by a series of serious problems such as equipment non-normal stop even casualties is up to multi-million dollar.In addition, stone
The floating roof tank tank deck for changing industry is often the main portions of heat losses, and since Conventional insulation thickness is larger and easy suction
Water, it may appear that floating roof gravity is excessive or off-centring, makes its effect failure.The heat preservation problem of many abnormity radiators there is no so far
Good solution.
Conventional vacuum cream, capable of preventing fires for having be not but waterproof；But thermal coefficient is higher for some heat insulating paste fire-proof and water-proofs, because
This, prepare fire prevention, waterproof, low-carbon environment-friendly energy-saving heat preserving cream, solve the above problems, there is immeasurable development prospect.
The Chinese patent of Patent No. 201210108965.3 discloses a kind of High-performance nanometer thermal-insulation paste, which adopts
With a kind of fibrous rich-magnesium clay mineral sepiolite cashmere, the active ingredients such as glass microballoon, aeroge are added, heat insulating paste tool
There is preferable mechanical strength, thermal coefficient can reach 0.043W/mK, but wherein be made using traditional aerogel powder
Valence is high, is not easy to disperse, causes cost and thermal coefficient higher.
The Chinese patent of Patent No. 201010185554.5 discloses a kind of low-carbon ceramic wall body heat insulating paste, the heat insulating paste
It is compounded by a large amount of high-adhesion inorganic binders and a small amount of preferably film forming agent, selects ceramic hollow particle and other fire-retardant materials
Material does filler, and the flame retardant property of heat insulating paste is A grades, and thermal coefficient can reach 0.048w/mk, and resistance to compression and tensile property are good
It is good, but wherein use traditional aerogel powder cost high, it is not easy to disperse, causes cost and thermal coefficient higher.
Invention content
The purpose of the present invention is being directed to technological deficiency existing in the prior art, to further decrease being produced into for heat insulating paste
This, reduces thermal coefficient, improves its mechanical strength, improve its hydrophobicity, fire line, and provides a kind of silica aerogel fire prevention, anti-
Water, environment-friendly insulating cream.
The technical solution adopted in the present invention is：
A kind of silica aerogel fire prevention, waterproof, environment-friendly insulating cream include the original of 20~70 parts by weight in parts by weight
Expect the water A of A, the raw material B of 20~50 parts by weight, the raw material C of 20~50 parts by weight, 1~15 parts by weight；
The raw material A, in parts by weight, including the hydroxymethyl cellulose of 1~15 parts by weight, hydroxyethyl cellulose,
The mixture of one or more of methanol A, n-hexane A, ethyl alcohol, the aerogel precursor body of 65~115 parts by weight；
The raw material B, in parts by weight, including the Ludox of 25~75 parts by weight, 20~70 parts by weight is organic
Fluorine-silicon modified acrylic lotion, the water B of 10~40 parts by weight, the polyacrylamides of 0.05~0.5 parts by weight, 1~10 parts by weight
The coalescents of coupling agent A, 1~13 parts by weight；Raw material B is binder；
The raw material C, in parts by weight, including the closed perlite of 20~70 parts by weight, 10~40 parts by weight
The swelling of one or both of diatomite, the ceramic fiber cotton of 1~15 parts by weight and wood fibre cotton, 0.5~10 parts by weight
One or both of soil or precipitated calcium carbonate and water C, wherein the weight of the parts by weight of water C and other components in the raw material C
The ratio for measuring number summation is 0.6~1.4.
Preferably, water content≤70% of the Ludox, the solid content of the organosilicon-modified acrylic emulsion >=
60%；Ludox is the dispersion liquid of nano level silica dioxide granule in water, the solid content of organosilicon-modified acrylic emulsion
Finger lotion in organosilicon-modified acrylic solid content content.
Preferably, the grain size of the closed perlite is 60~170 mesh, and diatomaceous grain size is 50~200 mesh.
Preferably, the length of ceramic fiber cotton is 0.2~3mm, and the length of wood fibre cotton is 0.2~3mm.
Preferably, the grain size of the closed perlite is 100 mesh, and diatomaceous grain size is 100 mesh.
Preferably, preparing in raw material for heat insulating paste further includes foaming agent, and the parts by weight of the foaming agent are the raw material C
In 1/10~1 times of parts by weight summation of other components in addition to ceramic fiber cotton, wood fibre cotton, water C.
Preferably, the foaming agent is one kind in biological foaming agent, physical blowing agent.
Specifically, the preparation method of the aerogel precursor body, includes the following steps：
(1) mixed solution of silicon source and solvent is prepared
The sodium metasilicate for the number 3.0~4.0 that rubs is taken to be fitted into reaction kettle, the water D that 1~3 times of sodium metasilicate quality is added is diluted,
Reaction kettle obtains sodium silicate solution with the speed stirring 30min of 80~200r/min through 200 mesh screens；
The aqueous solution of sodium metasilicate is commonly called as waterglass, it is made of the alkali metal and silica of different proportion, changes
Formula is R2O·nSiO2, R in formula2O is alkali metal oxide, and n is the ratio of silica and alkali metal oxide molal quantity,
The referred to as number that rubs of waterglass, the most commonly used is sodium silicate water glass Na2O·nSiO2；
(2) colloidal sol
It takes A sour, A acid metal salts is added in A acid and rare earth A hydrochlorates are added in a manner of spray to step after mixing
Suddenly the sodium silicate solution that (1) obtains；The material in reaction kettle is carried out soon with the speed of 1200~2000r/min while spray
Speed stirring, the pH value for controlling sodium silicate solution is 1.5~3.0, and it is 15~30 nanometers to control its average pore size, obtains colloidal sol, this
60~120min of step used time；
Preferably, the A acid is sulfuric acid, hydrochloric acid, oxalic acid or nitric acid, and 6~15mol/L is adjusted to water F；
Preferably, the A acid metal salts are A acid zirconates or A acid aluminium salts；
Preferably, the rare earth A hydrochlorates are A acid cerium salt, A acid yttrium salt or A acid lanthanum salts；
A acid metal salts and rare earth A hydrochlorates are easy the moisture absorption, and metering can be caused inaccurate, so for its addition of accurate quantitative analysis
Amount, in terms of oxide, the molar ratio of the two is 100 for A acid metal salts described in above-mentioned steps (2) and rare earth A hydrochlorates：1~6；Step
Suddenly in (2) in the oxide and sodium metasilicate of A acid metal salts silica molar ratio 2~5：100；For example, A acid metal salts are sulfuric acid
Aluminium, in terms of its oxide, i.e., with the molar ratio of silica in aluminium oxide and sodium metasilicate for 2~5：100；
(3) gel
Sodium hydroxide or ammonium hydroxide are taken, it is 10~11.5 that water E, which is added, and is diluted to pH value, is added in a manner of spray to reaction kettle
In；The material in reaction kettle is quickly stirred with the speed of 1200~2000r/min while spray, when object in reaction kettle
When the pH value of material is 4.5~5.5, spray is terminated, gel, 80~180min of this step used time are obtained；
(4) aging
3~10h of stirring is continued with the speed of 20~50r/min in reaction kettle, aging, control are carried out to the material in reaction kettle
Material in reactor temperature processed is 35~50 DEG C；The mode that standing is usually used in the prior art carries out aging, takes 3~5 days,
Gel can't be stirred, the reason is that the prior art needs to stand during generally believing aging, standing can
Convenient for the structure growth of aeroge；
(5) solvent is replaced
It carries out continuing 60~180min of stirring in reaction kettle, while being added same with aging material in step (4) reaction kettle
The displacement solvent of volume, to displace remaining moisture；The prior art worries that stirring can destroy its structure, will not generally replace
When be stirred, stewing process can be taken, cause take it is longer；Preparation method provided by the invention is stirred when solvent is replaced
60~180min is mixed, can greatly shorten period of a permutation, there is no destroyed microstructure；
Preferably, the displacement solvent is one or more of mixtures of methanol B, acetone, n-hexane B or heptane；
(6) surface modification
It carries out continuing stirring in reaction kettle, while continuously adding and aging material same volume in step (4) reaction kettle
Coupling agent B；By stirring 60~180min, the rare earth toughening silica aerogel forerunner for being coated with displacement solvent and coupling agent B is obtained
Body, as aerogel precursor body；
The coupling agent B that above-mentioned steps (6) surface modification is added cements out the water in aeroge micropore, and coupling agent B is filled out
It is charged into aeroge micropore, the stability of microcellular structure can be improved, improve the evenness of pore size；In addition, by pair plus
Enter after different coupling agent B is surface modified, aeroge hydrophobicity, hydrophilic sexual function can be adjusted.
Preferably, coupling agent B described in above-mentioned steps (6) is hexamethyldisilazane, bis- (trimethylsilyl) acetamides, first
Oxygroup trimethyl silane, dimethoxydimethylsilane, phenyl triethoxysilane, phenyltrimethoxysila,e, vinyl three
The one or more of methoxy silane, methyltriethoxysilane and methyl trimethoxy oxygroup alkane.
The above-mentioned aerogel precursor body using normal temperature and pressure technique productions is a kind of light porous amorphous state of structure-controllable
There is inorganic nano material continuous tridimensional network, porosity to be up to 80% or more, and average pore size is 20nm or so, than
Surface area is more than 500 ㎡/g, and density is less than 70kg/m3, thermal coefficient is less than 0.020W/ (mK) under normal temperature and pressure, than static
The thermal conductivity 0.022W/ (mK) of air is also low, be at present rare low cost, industrialization, low heat conductivity solid material.
Preferably, the stirring described in above-mentioned steps (5) or step (6) is to be stirred in reaction kettle.
Preferably, the stirring provides for reaction kettle center and quickly forward stirs (high speed shear disk), reaction kettle center
Periphery provide baffle plate to realize.
Preferably, the water A, water B, water C, water D, water E, water F are deionized water, the hydroxymethyl cellulose, ethoxy
Cellulose, methanol A, n-hexane A, ethyl alcohol are technical grade.
A kind of silica aerogel fire prevention, waterproof, environment-friendly insulating cream preparation method, include the following steps：
(1) preparation of raw material A：The aerogel precursor body of 65~115 parts by weight is taken, the methylol of 1~15 parts by weight is added
The mixture of one or more of cellulose, hydroxyethyl cellulose, methanol A, n-hexane A, ethyl alcohol, stirs evenly, and stirring turns
Speed is 50~200r/min, and mixing time is 20~60min, obtains raw material A；
(2) preparation of raw material B：Take the Ludox of 25~75 parts by weight, the organosilicon-modified acrylic of 20~70 parts by weight
Lotion, the water B of 10~40 parts by weight, the polyacrylamide of 0.05~0.5 parts by weight, the coupling agent A of 1~10 parts by weight, 1~13
The coalescents of parts by weight, stir evenly, and speed of agitator is 50~200r/min, and mixing time is 20~60min, obtains raw material B；
(3) preparation of raw material C：Take the closed perlite of 20~70 parts by weight, the diatomite of 10~40 parts by weight, 1~15
One or both of the ceramic fiber cotton of parts by weight and wood fibre cotton, the bentonite of 0.5~10 parts by weight or lightweight carbonic acid
One or both of calcium and water C, the ratio of the parts by weight of water C and the parts by weight summation of other components in the raw material C
It is 0.6~1.4, stirs evenly, speed of agitator is 50~200r/min, and mixing time is 20~60min, obtains raw material C；
(4) preparation of heat insulating paste：By the raw material A of 20~70 parts by weight, the raw material B of 20~50 parts by weight, 20~50 weight
Part raw material C, 1~15 parts by weight water A, stir evenly, speed of agitator be 50~200r/min, mixing time be 20~
60min, kneader are mediated, and kneading rotating speed is 50~200r/min, and kneading time is 20~60min.
Preferably, further include foaming processing step in the preparation method of heat insulating paste, foaming process is：In the step (4)
The weight of other components in the raw material C in addition to ceramic fiber cotton, wood fibre cotton, water C is added in the mixtures of materials of gained
1/10~1 times of foaming agent of amount number summation carries out foaming processing, and the product finished that foams is obtained after being mediated using kneader
Heat insulating paste finished product.
Preferably, the mixing of all solid materials all stirs material with planetary mixer in heat insulating paste preparation process.
The present invention operation principle be：
Aeroge is also known as blue smoke, with following characteristic：1, several infinite more nano-pores are distributed in the inside of aeroge
And air vent wall, air can not be flowed freely in nanometer stomata, be relatively adsorbed on air vent wall, aerogel material is in class
Likelihood dummy status, effectively reduces convection current heat transfer, and heat is transmitted in solid material and can be transmitted along air vent wall；These air vent wall structures
At the heat conduction path of infinite length, this will substantially reduce heat conduction；2, there are infinite more air vent wall, gas inside aeroge
Hole wall is equivalent to infinite more thermal baffle, the reflection to light and heat may be implemented, to which radiant heat transfer be greatly lowered；3, gas
Gel can effectively penetrate sunlight, and prevent the infrared emanation of environment temperature, become a kind of ideal transparent heat-insulated material,
The thermal conductivity of material is set to substantially reduce；
Based on the characteristic of above-mentioned aeroge, suitable bonding agent is selected, by aeroge and industry, building heat preservation heat insulating paste
Making material combines, and can not only enhance industrial, building heat preservation heat insulating paste mechanical strength, additionally it is possible to effectively reduce its heat conduction
Coefficient, improves its insulation ability, improves hydrophobic rate, improves industry and building heat preservation heat insulating paste surface and wall or other
The binding ability of material.
The beneficial effects of the present invention are：
1, currently, the heat-insulating property of building is calculated with thermal insulation board, due to the junction between thermal insulation board and thermal insulation board
There are heat bridge effects, and the heat in the interior external world can be connected, and need through thermal insulation mortar isolation heat conducting, and existing heat preservation sand
The thermal coefficient of slurry is all higher than 0.06w/m.k, and will increase thermal insulation material in this way uses thickness, and along with the arc of construction material
Shape or special-shaped junction are more and more, these connecting portions are required for filling thermal insulation mortar, how by thermal insulation board and thermal insulation board it
Between 0.046w/m.k or less and medium are reduced to using the thermal coefficient of medium there is good fire resistance, be always ability
The technical barrier in domain；
The present invention selects the materials such as Ludox, organosilicon-modified acrylic emulsion as bonding agent, with aerogel precursor body
For core starting materials, the heat insulating paste that can be used for industry and building energy conservation is prepared, since aerogel material has a nanometer three-dimensional structure,
Solid thermal conduction path can effectively be extended, inhibit gaseous exchange heat transfer, reduce the characteristics of heat radiation, made aeroge heat preservation
Cream, the thermal coefficient of product can reach 0.040~0.046w/m.k in the present invention, and the thermal coefficient of heat insulating paste is substantially reduced,
The heat insulating paste has the incomparable heat-proof quality of traditional material；
2, aeroge is added in the form of powder in existing heat insulating paste, and aerogel powder has to pass through in preparation process
It is dried, drying process is to use supercritical drying process to complete at high temperature under high pressure, and working condition is harsh, and technique is multiple
Miscellaneous, dangerous big, process units investment is big, and preparation efficiency is low, and raw material are of high cost based on the silanol of high price；
Aeroge in heat insulating paste of the present invention is added in the form of aerogel precursor body, raw without drying process step
It produces at low cost；In addition, aerogel precursor body is to prepare at normal temperatures and pressures, stabilization simple for process is safe, technical process from
Traditional 300h is down to 30h, and the process units investment of same production capacity is only the 1/20 of conventional method, and the prices of raw materials compare traditional silicon
Low 100 times of source or more, product cost are only the 1/10 of conventional method；
3, product is inorganic heat insulation material in the present invention, thermal insulation material thickness can be thinned using product in the present invention, together
When increase building usable floor area；
4, in the present invention after heat insulating paste drying, there is higher mechanical strength, compression strength to be more than 0.4Mpa, tensile strength
More than 0.1MPa；
5, fire prevention A1 ranks are realized, fire protecting performance is obviously improved；
6, there is preferable waterproof and low-cost advantage, provided for building energy conservation, environmental protection and industrial energy saving a kind of new
Proximate matter material；
7, the wood fibre cotton used in the present invention plays the role of enhancing heat insulation and heat preservation, pottery for porous material
Porcelain cellucotton plays the role of integrally stretching；
8, wet concentration deionized water in the present invention, hydroxymethyl cellulose, hydroxyethyl cellulose, methanol, n-hexane, ethyl alcohol choosing
With technical grade, production cost is further decreased；
9, different from conventional vacuum mortar preparation process, the present invention uses foaming processing in the preparation process of heat insulating paste
Technique makes to further enhance heat-insulating property containing bubble in heat insulating paste；It is material around bubble, at foaming when foaming processing
Heat insulating paste material after reason is more loose；In addition, same prepare heat insulating paste using method in the present invention, after foaming is handled
Heat insulating paste compared with not foamed treated heat insulating paste, thermal coefficient declines 0.005w/m.k, and thermal coefficient is substantially reduced；
10, in the preparation process of traditional thermal insulation mortar, the stirring of material is all made of traditional blender, paddle
Twist, it is susceptible to the non-uniform phenomenon of material stirring；Solid material stirs material using planetary mixer in the present invention,
Rotating speed is fast and Multi-angle turnover material, material mix highly uniform, and the product quality produced is uniform, and heat preservation, resists anti-folding
The performances performances such as pressure are more preferably；
11, the operation principle that in the present invention prepared by aerogel precursor body is：In the preparation method of aerogel precursor body, gel
The A acid metal salts and rare earth A hydrochlorates being added in the process can achieve the effect that toughening and improve silica aerogel heat resistance；Aging
It is to carry out in the state of stirring with solvent swap step, substantially increases reaction efficiency, have compressed the process time, is suitble to production
Industry；
12, compared with prior art, advantage has the following to aerogel precursor preparation in the present invention：
(1) in recent years, there are some about relevant report and the patent text for preparing aeroge under room temperature differential pressure in the prior art
It offers, but is to rest on laboratory preparatory phase mostly, technical process is longer, while process implementing narrow limits, it is difficult to realize
Large-scale industrialized production and application；The present invention provides the preparation methods under normal temperature and pressure, and it is opposing stationary to change the prior art
Technique, apply in critical process process and stir, speeded up to the hydrolysis, polycondensation and modification of aeroge, realize in 30h and close
At the technique of aerogel precursor body, a kind of method that industrial batch prepares rare earth toughening aeroge is provided, is aeroge
A large amount of manufacture and use provide premise；
(2) one of hinder the reason of aeroge development that be aeroge have reticular structure, but the structure in the prior art
Edge it is relatively thin, more crisp, compression strength is low, and easy compression is caved in, and causes performance unstable；Present invention addition rare earth A hydrochlorates
With A acid metal salts, the toughness of the material is improved, improves the intensity of aeroge；
(3) temperature in use of the aeroge of prior art preparation is relatively low, generally used below also more stable at 500 DEG C,
500 DEG C or more the internal structure changes that can lead to aeroge, cause thermal coefficient to decline；The present invention addition rare earth A hydrochlorates and A
Acid metal salt improves the heat resistance of the material, improves the heat resisting temperature of aeroge.
13, the three-dimensional structure of aerogel precursor body plays an important role during its performance plays, if gas
Hole in Gel Precursor is blocked by binder and can not just play a role；
Traditional aeroge is prepared at high temperature under high pressure, if the later stage is not specially treated, porous three-dimensional space
It is easy to be blocked and failed by binder or other raw materials, and then it is made to lose heat insulation, in addition, aeroge is porous three-dimensional vertical
Body spaces union can play better thermal insulation together, can found the three-dimensional inside aeroge after being separated by binder
Isolated island is isolated into body space, and then generates island effect, reduces the heat insulation of aeroge；
Containing displacement solvent in the aerogel precursor body prepared using method in the present invention, before displacement solvent occupies aeroge
Drive porous three-dimensional space in vivo, binder or other raw materials can not invade it is porous in occupy its three-dimensional space, protect
In warm plate drying process, displacement solvent volatilization is maintained to porous 3 D stereo after solvent volatilizees in aeroge
Structure overcomes failure and island effect caused by hole is blocked, and therefore, heat-proof quality is stronger.
In short, compared with traditional material, the hot coefficient of thermal coefficient of product is substantially reduced and realizes realization in the present invention
A1 grades of fire prevention, have higher mechanical strength, preferable waterproof and low-cost advantage.
Specific implementation mode
With reference to embodiment, the invention will be further described：
One, Examples 1 to 8
1, a kind of silica aerogel fire prevention, waterproof, environment-friendly insulating cream formula, in parts by weight, including 20~70 weights
The water A of the amount raw material A of part, the raw material B of 20~50 parts by weight, the raw material C of 20~50 parts by weight, 1~15 parts by weight, embodiment 1
The specific dosage of each component is shown in Table 1 in~8；
Raw material A, in parts by weight, including the hydroxymethyl cellulose of 1~15 parts by weight, hydroxyethyl cellulose, methanol
A, the mixture of one or more of n-hexane A, ethyl alcohol, 65~115 parts by weight aerogel precursor body；
Raw material B, in parts by weight, including the organosilicon of the Ludox of 25~75 parts by weight, 20~70 parts by weight changes
Property acrylic emulsion, the water B of 10~40 parts by weight, 0.05~0.5 parts by weight polyacrylamide, 1~10 parts by weight coupling
The coalescents of agent A, 1~13 parts by weight；
Raw material C includes the diatom of the closed perlite of 20~70 parts by weight, 10~40 parts by weight in parts by weight
One or both of soil, the ceramic fiber cotton of 1~15 parts by weight and wood fibre cotton, 0.5~10 parts by weight bentonite or
One or both of precipitated calcium carbonate and water C, wherein the parts by weight of water C and the parts by weight of other components in raw material C are total
The ratio of sum is 0.6~1.4；
The specific dosage of each component is shown in Table 2 in raw material A, B, C in Examples 1 to 8.
Wherein, the water A that is used in embodiment, water B, water C is deionized waters, hydroxymethyl cellulose, hydroxyethyl cellulose, first
Alcohol A, n-hexane A, ethyl alcohol use technical grade；Water content≤70% of Ludox, the solid content of organosilicon-modified acrylic emulsion
>=60%；The grain size of closed perlite is 60~170 mesh；Diatomaceous grain size is 50~200 mesh；The length of ceramic fiber cotton is
The length of 0.2~3mm, wood fibre cotton are 0.2~3mm, and design parameter is shown in Table 3.
The specific detailed list of usage of each component of heat insulating paste in 1 Examples 1 to 8 of table
In 2 Examples 1 to 8 of table in raw material A, B, C each component specific detailed list of usage
The design parameter detail list of component in 3 Examples 1 to 8 of table
2, a kind of silica aerogel fire prevention, waterproof, environment-friendly insulating cream preparation method, which is characterized in that include the following steps：
(1) preparation of raw material A：The aerogel precursor body of 65~115 parts by weight is taken, the methylol of 1~15 parts by weight is added
The mixture of one or more of cellulose, hydroxyethyl cellulose, methanol A, n-hexane A, ethyl alcohol, stirs evenly, and stirring turns
Speed is 50~200r/min, and mixing time is 20~60min, obtains raw material A；
(2) preparation of raw material B：Take the Ludox of 25~75 parts by weight, the organosilicon-modified acrylic of 20~70 parts by weight
Lotion, the water B of 10~40 parts by weight, the polyacrylamide of 0.05~0.5 parts by weight, the coupling agent A of 1~10 parts by weight, 1~13
The coalescents of parts by weight stir evenly after mixing, and speed of agitator is 50~200r/min, and mixing time is 20~60min, is obtained
Raw material B；
(3) preparation of raw material C：Take the closed perlite of 20~70 parts by weight, the diatomite of 10~40 parts by weight, 1~15
One or both of the ceramic fiber cotton of parts by weight and wood fibre cotton, the bentonite of 0.5~10 parts by weight or lightweight carbonic acid
One or both of calcium and water C, the parts by weight of water C are 0.6 with the ratio of the parts by weight summation of other components in raw material C
~1.4, it stirs evenly, speed of agitator is 50~200r/min, and mixing time is 20~60min, obtains raw material C；
(4) preparation of heat insulating paste：By the raw material A of 20~70 parts by weight, the raw material B of 20~50 parts by weight, 20~50 weight
Part raw material C, 1~15 parts by weight water A, stir evenly, speed of agitator be 50~200r/min, mixing time be 20~
60min, kneader are mediated, and kneading rotating speed is 50~200r/min, and kneading time is 20~60min；Design parameter is shown in Table 4.
Each parameter detail list in ointment preparation is kept the temperature in 4 Examples 1 to 8 of table
3, the aerogel precursor body used in aeroge modified expanded perlite insulation board, specific preparation process are as follows：
(1) mixed solution of silicon source and solvent is prepared
The waterglass for the number 3.0~4.0 that rubs is taken to be fitted into reaction kettle, the water D that 1~3 times of waterglass quality is added is diluted,
Reaction kettle obtains water glass solution with the speed stirring 30min of 80~200r/min through 200 mesh screens；
(2) colloidal sol
It takes A sour, A acid metal salts is added in A acid and rare earth A hydrochlorates are added in a manner of spray to step after mixing
Suddenly the water glass solution that (1) obtains；The material in reaction kettle is carried out soon with the speed of 1200~2000r/min while spray
Speed stirring, control ph to 1.5~3.0 stop spray, and spray time is controlled in 60~120min, obtains colloidal sol；
A acid is sulfuric acid, hydrochloric acid, oxalic acid or nitric acid, its concentration is adjusted to 6~15mol/L with water F；
A acid metal salts are A acid zirconates or A acid aluminium salts, and rare earth A hydrochlorates are A acid cerium salt, A acid yttrium salt or A acid lanthanum salts；
In terms of oxide, the molar ratio of the two is 100 for A acid metal salts and rare earth A hydrochlorates：1~6；
The molar ratio 2~5 of silica in the oxide and water glass solution of A acid metal salts：100；
(3) gel
Sodium hydroxide or ammonium hydroxide are taken, it is 10~11.5 that water E, which is added, and is diluted to pH value, is added in a manner of spray to step
(2) in reaction kettle in gained colloidal sol；The material in reaction kettle is carried out soon with the speed of 1200~2000r/min while spray
Speed stirring sprays 80~180min of used time, obtains gel when the pH value of material in reactor is 4.5~5.5；
(4) aging
3~10h of stirring is continued with the speed of 20~50r/min in reaction kettle, aging, control are carried out to the material in reaction kettle
Material in reactor temperature processed is 35~50 DEG C；
(5) solvent is replaced
The displacement solvent with aging material same volume in step (4) reaction kettle is added while stirring in reaction kettle, with
Remaining moisture is displaced, 60~180min is stirred；
Displacement solvent is one or more of mixtures of methanol B, acetone, n-hexane B or heptane；
(6) surface modification
It carries out continuing stirring in reaction kettle, while continuously adding and aging material same volume in step (4) reaction kettle
Coupling agent B obtains the rare earth toughening silicon for being coated with displacement solvent and coupling agent B after surface modification by stirring 60~180min
Aerogel precursor body, as aerogel precursor body；
Stirring in step (5) or step (6) is that heart offer is quickly forward stirred in a kettle, reaction kettle center
Periphery provides baffle plate；
Coupling agent B is hexamethyldisilazane, bis- (trimethylsilyl) acetamides, methoxytrimethylsilane, dimethoxy
Dimethylsilane, phenyl triethoxysilane, phenyltrimethoxysila,e, vinyltrimethoxysilane, methyl triethoxy
One or more of mixtures of silane and methyl trimethoxy oxygroup alkane；Water D, water E, water F are deionized water.
The variable parameter of each embodiment and concrete numerical value are shown in Table 5 in the preparation method of aerogel precursor body.
The design parameter that step (1)~(6) use in the preparation method of aerogel precursor body in 5 Examples 1 to 8 of table
The mixing of all solid materials all stirs material with planetary mixer in heat insulating paste preparation process.
Embodiment 9~16
The contrast groups embodiment 9~16 of Examples 1 to 8 is respectively set, further includes foaming agent in the formula of embodiment 9~16
And foaming is handled after the preparation of heat insulating paste；Rest part, for embodiment 9 with embodiment 1, embodiment 10 is real with embodiment 2
Example 11 is applied with embodiment 3, embodiment 12 is with embodiment 4, and embodiment 13 is with embodiment 5, and embodiment 14 is the same as embodiment 6, embodiment
15 with embodiment 7, and embodiment 16 is the same as embodiment 8；
1, a kind of silica aerogel fire prevention, waterproof, environment-friendly insulating cream formula, in parts by weight, including 20~70 weights
Water A, the foaming agent of the amount raw material A of part, the raw material B of 20~50 parts by weight, the raw material C of 20~50 parts by weight, 1~15 parts by weight；
The parts by weight of foaming agent be closed perlite, the parts by weight summation of diatomite, bentonite, precipitated calcium carbonate 1/10~1；
If being not added with bentonite in raw material C, bentonitic parts by weight are calculated with 0, if being not added with precipitated calcium carbonate, lightweight in raw material C
The parts by weight of calcium carbonate are calculated with 0；Foaming agent is one kind in biological foaming agent, physical blowing agent, each in embodiment 9~16
The specific dosage of component is shown in Table 6, table 7；
The specific detailed list of usage of each component of heat insulating paste in 6 embodiment 9~16 of table
In 7 embodiment 9~16 of table in raw material A, B, C each component specific detailed list of usage
2, a kind of silica aerogel fire prevention, waterproof, environment-friendly insulating cream preparation method, include the following steps：
(1) preparation of raw material A：The aerogel precursor body of 65~115 parts by weight is taken, the methylol of 1~15 parts by weight is added
The mixture of one or more of cellulose, hydroxyethyl cellulose, methanol A, n-hexane A, ethyl alcohol, stirs evenly, and stirring turns
Speed is 50~200r/min, and mixing time is 20~60min, obtains raw material A；
(2) preparation of raw material B：Take the Ludox of 25~75 parts by weight, the organosilicon-modified acrylic of 20~70 parts by weight
Lotion, the water B of 10~40 parts by weight, the polyacrylamide of 0.05~0.5 parts by weight, the coupling agent A of 1~10 parts by weight, 1~13
The coalescents of parts by weight stir evenly after mixing, and speed of agitator is 50~200r/min, and mixing time is 20~60min, is obtained
Raw material B；
(3) preparation of raw material C：Take the closed perlite of 20~70 parts by weight, the diatomite of 10~40 parts by weight, 1~15
One or both of the ceramic fiber cotton of parts by weight and wood fibre cotton, the bentonite of 0.5~10 parts by weight or lightweight carbonic acid
One or both of calcium and water C, the parts by weight of water C are 0.6 with the ratio of the parts by weight summation of other components in raw material C
~1.4, it stirs evenly, speed of agitator is 50~200r/min, and mixing time is 20~60min, obtains raw material C；
(4) preparation of heat insulating paste：By the raw material A of 20~70 parts by weight, the raw material B of 20~50 parts by weight, 20~50 weight
Part raw material C, 1~15 parts by weight water A, stir evenly, speed of agitator be 50~200r/min, mixing time be 20~
60min, kneader are mediated, and kneading rotating speed is 50~200r/min, and kneading time is 20~60min；
(5) foaming is handled:In mixtures of materials obtained by step (4) be added closed perlite, diatomite, bentonite,
The foaming agent of 1/10~1 times of parts by weight of the parts by weight summation of precipitated calcium carbonate carries out foaming processing；If being not added in raw material C
Bentonite, bentonitic parts by weight are calculated with 0, if being not added with precipitated calcium carbonate in raw material C, the parts by weight of precipitated calcium carbonate
It is calculated with 0；The product that finishes of foaming is mediated using kneader, and kneadings rotating speed is 50~200r/min, kneading time for 20~
60min obtains heat insulating paste finished product, and design parameter is shown in Table 8 in embodiment 9~16.
Each parameter detail list in ointment preparation is kept the temperature in 8 embodiment 9~16 of table
Two, performance detection
Product is in paste in the present invention, to being detected at the product after test block in embodiment 1~16, specific detection side
Method is as follows, and specific testing result is shown in Table 9, table 10.
(1) according to method specified in GB/T 10294 to the thermal coefficient of the heat insulating paste product in embodiment 1~16 into
Row detection；
(2) according to method specified in GB/T 11969 to the compression strength of the heat insulating paste product in embodiment 1~16 into
Row detection；
(3) according to method specified in GB/T 11969 to the flexural strength of the heat insulating paste product in embodiment 1~16 into
Row detection；
(4) volume of the heat insulating paste product in embodiment 1~16 is inhaled according to method specified in GB/T16401-1996
Water rate is detected；
(5) according to GB8624-2012《Construction material and product burns grading performance》Rule in middle plateform shape construction material
Fixed method is detected the combustibility of the product of embodiment 1~16；
The testing result of product in 9 Examples 1 to 8 of table
The testing result of product in 10 embodiment 9~16 of table
By data in table 9,10 it is found that in the present invention after heat insulating paste drying, the thermal coefficient of product can reach 0.040~
The thermal coefficient of 0.045w/m.k, heat insulating paste are substantially reduced；By foaming treated heat insulating paste with not foamed treated
Heat insulating paste is compared, and thermal coefficient declines 0.005w/m.k；Compression strength is more than 0.4Mpa, and tensile strength is more than 0.1MPa, has
Higher mechanical strength；Fire-protection rating has reached A1 grades, and fire protecting performance is very good.
The application method of product is identical as the application method of conventional vacuum mortar in the present invention.
It is bad to the generation of its main performance to broadly refer to product resistance Environmental Water for " hydrophobic " occurred in the present invention
The ability of influence., it is specified that being oozed to reflect that material is water-fast in " the term definition " of international " Test method for hydrophobic nature of thermal insulation "
A saturating performance indicator, it has been specified that after mode, the flow of certain flow spray, the volume basis of not permeable part in sample
Rate indicates.
16 embodiments of the present invention are described in detail above, but the content is only the preferable implementation of the present invention
Example should not be construed as limiting the practical range of the present invention.It is all according to all the changes and improvements made by the present patent application range
Deng should all still fall within the scope of the patent of the present invention.
Claims (7)
1. a kind of silica aerogel fire prevention, waterproof, environment-friendly insulating cream, which is characterized in that in parts by weight, including 20~70 weights
The water A of the amount raw material A of part, the raw material B of 20~50 parts by weight, the raw material C of 20~50 parts by weight, 1~15 parts by weight；
The raw material A, in parts by weight, including the hydroxymethyl cellulose of 1~15 parts by weight, hydroxyethyl cellulose, methanol
A, the mixture of one or more of n-hexane A, ethyl alcohol, 65~115 parts by weight aerogel precursor body；
The raw material B, in parts by weight, including the organosilicon of the Ludox of 25~75 parts by weight, 20~70 parts by weight changes
Property acrylic emulsion, the water B of 10~40 parts by weight, 0.05~0.5 parts by weight polyacrylamide, 1~10 parts by weight coupling
The coalescents of agent A, 1~13 parts by weight；
The raw material C includes the diatom of the closed perlite of 20~70 parts by weight, 10~40 parts by weight in parts by weight
One or both of soil, the ceramic fiber cotton of 1~15 parts by weight and wood fibre cotton, 0.5~10 parts by weight bentonite or
One or both of precipitated calcium carbonate and water C；Wherein, the parts by weight of the parts by weight of water C and other components in the raw material C
The ratio of number summation is 0.6~1.4；
The preparation method of the aerogel precursor body, includes the following steps：
（1）Prepare the mixed solution of silicon source and solvent
The sodium metasilicate for the number 3.0~4.0 that rubs is taken to be fitted into reaction kettle, the water D that 1~3 times of sodium metasilicate quality is added is diluted, and is reacted
Kettle obtains sodium silicate solution with the speed stirring 30min of 80~200r/min through 200 mesh screens；
（2）Colloidal sol
It takes A sour, A acid metal salts is added in A acid and rare earth A hydrochlorates are added in a manner of spray to step after mixing
（1）Obtained sodium silicate solution；The material in reaction kettle is carried out quickly with the speed of 1200~2000r/min while spray
Stirring, the pH value for controlling sodium silicate solution is 1.5~3.0, obtains colloidal sol；The A acid is sulfuric acid B, hydrochloric acid B, oxalic acid B or nitric acid
B is adjusted to 6~15mol/L with water B;
Gel
Sodium hydroxide or ammonium hydroxide are taken, it is 10~11.5 that water E, which is added, and is diluted to pH value, is added into reaction kettle in a manner of spray；
The material in reaction kettle is quickly stirred with the speed of 1200~2000r/min while spray, works as material in reactor
PH value be 4.5~5.5 when, terminate spray, obtain gel；
（4）Aging
3~10h of stirring is continued with the speed of 20~50r/min in reaction kettle, aging is carried out to the material in reaction kettle, control is anti-
It is 35~50 degrees Celsius to answer material temperature in kettle；
（5）Solvent is replaced
It carries out continuing 60~180min of stirring, while addition and step in reaction kettle（4）Aging material same volume in reaction kettle
Displacement solvent, to displace remaining moisture；
（6）Surface modification
It carries out continuing stirring in reaction kettle, while continuously adding and step（4）The coupling of aging material same volume in reaction kettle
Agent B；By stirring 60~180min, the rare earth toughening silica aerogel presoma for being coated with displacement solvent and coupling agent B is obtained, i.e.,
For aerogel precursor body.
2. a kind of silica aerogel fire prevention according to claim 1, waterproof, environment-friendly insulating cream, which is characterized in that the silicon is molten
Water content≤70% of glue, solid content >=60% of the organosilicon-modified acrylic emulsion.
3. a kind of silica aerogel fire prevention according to claim 1, waterproof, environment-friendly insulating cream, which is characterized in that the closed pore
The grain size of perlite is 60~170 mesh, and diatomaceous grain size is 50~200 mesh.
4. a kind of silica aerogel fire prevention according to claim 1, waterproof, environment-friendly insulating cream, which is characterized in that ceramic fibre
The length of cotton is 0.2~3mm, and the length of wood fibre cotton is 0.2~3mm.
5. a kind of silica aerogel fire prevention according to claim 1, waterproof, environment-friendly insulating cream, which is characterized in that heat insulating paste
It further includes foaming agent to prepare in raw material, and the parts by weight of the foaming agent are that ceramic fiber cotton, wood fibre are removed in the raw material C
1/10~1 times of the parts by weight summation of other components outside cotton, water C.
6. a kind of silica aerogel fire prevention according to claim 1, waterproof, environment-friendly insulating cream, which is characterized in that the foaming
Agent is one kind in biological foaming agent, physical blowing agent.
7. a kind of silica aerogel fire prevention according to claim 1, waterproof, environment-friendly insulating cream, which is characterized in that the water A,
Water B, water C, water D, water E are deionized water, and the hydroxymethyl cellulose, hydroxyethyl cellulose, methanol A, n-hexane A, ethyl alcohol are
Technical grade.
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| CN113072332A (en) * | 2021-04-23 | 2021-07-06 | 北京化工大学 | High-performance fireproof gel material base liquid and preparation method thereof, and composite fireproof glass and preparation method thereof |
| GB2608391A (en) * | 2021-06-29 | 2023-01-04 | Corksol Uk Ltd | Construction product, method of making, and method of use |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108530011B (en) * | 2017-04-25 | 2020-12-18 | 天津唯元科技发展有限公司 | Silicon aerogel fireproof, waterproof and environment-friendly heat-preservation paste |
| CN115652639B (en) * | 2022-10-13 | 2024-06-25 | 河北钢铁集团矿业有限公司 | High-performance composite industrial air film for building film material and preparation method thereof |
| CN115849858B (en) * | 2022-12-26 | 2023-11-28 | 中发创新(安徽)新材料有限公司 | Heat preservation slurry of aerogel precursor composite magnesium-based gelatinizing agent |
| CN118812273B (en) * | 2024-09-14 | 2024-11-22 | 山东工业陶瓷研究设计院有限公司 | Preparation method of ceramic fiber framework rigid heat insulation material |
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| CN107089818A (en) | 2017-08-25 |
| CN108558344B (en) | 2020-12-22 |
| CN108530011B (en) | 2020-12-18 |
| CN107089818B (en) | 2018-09-07 |
| CN108558344A (en) | 2018-09-21 |
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