CN111218125A - Organic fire-resistant heat-insulating material and preparation method thereof - Google Patents
Organic fire-resistant heat-insulating material and preparation method thereof Download PDFInfo
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- CN111218125A CN111218125A CN202010145598.9A CN202010145598A CN111218125A CN 111218125 A CN111218125 A CN 111218125A CN 202010145598 A CN202010145598 A CN 202010145598A CN 111218125 A CN111218125 A CN 111218125A
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- 239000011810 insulating material Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- 230000009970 fire resistant effect Effects 0.000 title claims description 27
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 51
- 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 claims abstract description 38
- 239000003063 flame retardant Substances 0.000 claims abstract description 33
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 30
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 30
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000010439 graphite Substances 0.000 claims abstract description 27
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 27
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 25
- 239000004744 fabric Substances 0.000 claims abstract description 23
- 239000000654 additive Substances 0.000 claims abstract description 12
- 230000000996 additive effect Effects 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- 229920005989 resin Polymers 0.000 claims abstract description 10
- 239000011347 resin Substances 0.000 claims abstract description 10
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims abstract description 10
- 239000004114 Ammonium polyphosphate Substances 0.000 claims abstract description 9
- 235000019826 ammonium polyphosphate Nutrition 0.000 claims abstract description 9
- 229920001276 ammonium polyphosphate Polymers 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 34
- 239000002344 surface layer Substances 0.000 claims description 31
- 239000003677 Sheet moulding compound Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 239000012258 stirred mixture Substances 0.000 claims description 6
- 239000012774 insulation material Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 230000008719 thickening Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 9
- 239000011819 refractory material Substances 0.000 abstract description 8
- 230000007480 spreading Effects 0.000 abstract description 5
- 238000003892 spreading Methods 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 11
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 3
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 3
- 229910052863 mullite Inorganic materials 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910000531 Co alloy Inorganic materials 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 229910001093 Zr alloy Inorganic materials 0.000 description 2
- QXZUUHYBWMWJHK-UHFFFAOYSA-N [Co].[Ni] Chemical compound [Co].[Ni] QXZUUHYBWMWJHK-UHFFFAOYSA-N 0.000 description 2
- HPTYUNKZVDYXLP-UHFFFAOYSA-N aluminum;trihydroxy(trihydroxysilyloxy)silane;hydrate Chemical compound O.[Al].[Al].O[Si](O)(O)O[Si](O)(O)O HPTYUNKZVDYXLP-UHFFFAOYSA-N 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010433 feldspar Substances 0.000 description 2
- 229910052621 halloysite Inorganic materials 0.000 description 2
- -1 hydromica Chemical compound 0.000 description 2
- 229910052900 illite Inorganic materials 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 229910052622 kaolinite Inorganic materials 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 2
- 239000000391 magnesium silicate Substances 0.000 description 2
- 229910052919 magnesium silicate Inorganic materials 0.000 description 2
- 235000019792 magnesium silicate Nutrition 0.000 description 2
- QRNPTSGPQSOPQK-UHFFFAOYSA-N magnesium zirconium Chemical compound [Mg].[Zr] QRNPTSGPQSOPQK-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052901 montmorillonite Inorganic materials 0.000 description 2
- VGIBGUSAECPPNB-UHFFFAOYSA-L nonaaluminum;magnesium;tripotassium;1,3-dioxido-2,4,5-trioxa-1,3-disilabicyclo[1.1.1]pentane;iron(2+);oxygen(2-);fluoride;hydroxide Chemical compound [OH-].[O-2].[O-2].[O-2].[O-2].[O-2].[F-].[Mg+2].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[K+].[K+].[K+].[Fe+2].O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2 VGIBGUSAECPPNB-UHFFFAOYSA-L 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 238000005411 Van der Waals force Methods 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- DZUDZSQDKOESQQ-UHFFFAOYSA-N cobalt hydrogen peroxide Chemical compound [Co].OO DZUDZSQDKOESQQ-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
Images
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
- C08L101/02—Compositions of unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
- B29C2043/5808—Measuring, controlling or regulating pressure or compressing force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
- B29C2043/5816—Measuring, controlling or regulating temperature
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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Abstract
The invention relates to the field of refractory materials, and discloses an organic refractory heat-insulating material and a preparation method thereof, wherein the organic refractory heat-insulating material comprises the following raw materials in parts by weight: 20-30 parts of unsaturated resin, 15-25 parts of low-shrinkage additive, 1.5-3.5 parts of zinc stearate, 0.3-1 part of curing agent, 30-60 parts of flame retardant, 0.2-3 parts of expanded graphite, 4-12 parts of kaolin and 20-50 parts of high-silica cloth. The kaolin and the non-halogenated additive flame retardant based on the ammonium polyphosphate are used in a matching manner, so that the kaolin flame retardant can effectively retard flame, prevent organic matters from being decomposed, achieve the purposes of fire insulation, flame retardance and heat insulation, has high strength, light weight and high fire resistance temperature, can well isolate flame, prevent the flame from spreading to the interior of a product or a device, and effectively protect the interior product or device.
Description
Technical Field
The invention relates to the field of refractory materials, in particular to an organic refractory heat-insulating material and a preparation method thereof.
Background
To prevent accidental ignition of certain components, the components are placed in a box or coated with a refractory material. The existing refractory material is high in manufacturing cost, low in strength and inconvenient to form, particularly for fine electrical products which are often and instantaneously subjected to fire, the existing refractory material does not have excellent electrical performance, is heavy in weight, is not beneficial to engineering design, is poor in corrosion resistance, and is not suitable for industrial large-scale production.
For example, a "refractory material" disclosed in the Chinese patent literature, which is published under the publication number CN109423565A, comprises the following components in parts by weight: 125-159 parts of quartz sand, 15-30 parts of silicon carbide powder, 20-35 parts of phenol resin, 5-10 parts of nickel-cobalt alloy, 15-29 parts of magnesium silicate, 25-35 parts of sodium silicate, 5-10 parts of silicon carbide, 55-110 parts of alumina, 30-110 parts of magnesium-zirconium alloy, 12-14 parts of cobalt dioxide, 5-10 parts of titanium dioxide, 15-20 parts of clay and 20-40 parts of silicon dioxide. The refractory material uses the raw materials of nickel-cobalt alloy, magnesium silicate, aluminum oxide, magnesium-zirconium alloy and the like, has high cost, heavy weight and difficult engineering design, and is not suitable for the refractory protection of fine products.
Disclosure of Invention
The present invention is directed to an organic fire-resistant heat insulating material and a method for preparing the same, which solve the above-mentioned problems of the prior art.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
an organic fire-resistant heat-insulating material comprises the following raw materials in parts by weight: 20-30 parts of unsaturated resin, 15-25 parts of low shrinkage additive, 1.5-3.5 parts of zinc stearate, 0.3-1 part of curing agent, 30-60 parts of flame retardant, 0.2-3 parts of expanded graphite, 4-12 parts of kaolin and 20-50 parts of high silica cloth.
The organic fire-resistant heat-insulating material comprises a fired surface layer material and a non-fired surface material, and is obtained by adding a layer of fired surface layer material on the surface layer of the non-fired surface material and then performing high-temperature high-pressure curing and forming. The fire receiving surface layer material adopts high silica cloth, and the two sides of the high silica cloth are coated with a fire retardant, expanded graphite and kaolin; the high silica cloth is a high temperature resistant inorganic fiber, the silica content of the high silica cloth is higher than 96%, the softening point is near 1700 ℃, the high silica cloth can be used for a long time at 900 ℃, the high silica cloth can work for 10 minutes at 1450 ℃, and can still keep in good condition after working for 15 seconds at 1600 ℃, the high silica cloth has the characteristics of high strength, easy processing and wide application, and can be used as a high temperature resistant, ablation resistant, heat insulation and heat preservation material. The kaolin is white, fine and soft, has good plasticity and fire resistance, and mainly comprises kaolinite, halloysite, hydromica, illite, montmorillonite, quartz, feldspar and other minerals. The kaolin is matched with the flame retardant for use, so that the flame is effectively retarded, and the decomposition of organic matters is prevented. The non-fire-receiving surface material adopts a high-flame-retardant sheet molding compound, the sheet molding compound is a dry sheet prepreg consisting of unsaturated polyester resin, a low-shrinkage additive, a filler, a curing agent, a thickening agent, a release agent and glass fiber, has the characteristics of low shrinkage, high strength and convenience in molding, is suitable for industrial large-scale production, and has the advantages of excellent electrical performance, corrosion resistance, light weight, easiness in engineering design and flexibility. The invention has high strength, light weight and fire-resistant temperature up to 1000 ℃, and can well isolate flame, prevent flame from spreading inwards and protect internal products or devices.
Further, the refractory heat-insulating material comprises the following raw materials in parts by weight: unsaturated resin 21, low-shrinkage additive 17, zinc stearate 2, curing agent 0.5, flame retardant 33, expanded graphite 1.7, kaolin 4 and high silica cloth 20.
Further, the flame retardant is a non-halogenated flame retardant based on ammonium polyphosphate.
After the fire surface layer material in the organic fire-resistant heat-insulating material is fired, the volume of the expanded graphite expands, a carbonized layer crust is formed on the surface of the non-halogenated flame retardant based on ammonium polyphosphate, a mullite hard layer is formed on the surface of kaolin after the kaolin is heated, and the kaolin and the non-halogenated flame retardant based on ammonium polyphosphate are matched for use, so that the flame retardance is effectively realized, and the decomposition of organic matters is prevented. The purposes of fire insulation, flame retardance and heat insulation are achieved.
A preparation method of an organic fire-resistant heat-insulating material comprises the following steps:
s1) adding unsaturated resin and low-shrinkage additive into a reaction kettle, stirring, and sequentially adding curing agent, zinc stearate, flame retardant, graphite and kaolin into the reaction kettle according to a certain proportion to obtain a uniformly stirred mixture;
s2) uniformly coating the uniformly stirred mixture on the surface of the high silica cloth;
s3) thickening the high silica cloth coated with the mixture at a preset temperature and for a preset time to obtain a thickened fire-receiving surface layer material;
s4) cutting the sheet molding compound and the fired surface layer material respectively to obtain the sheet molding compound with preset size and the fired surface layer material with the size matched with that of the sheet molding compound;
s5) putting the cut-out fire-receiving surface layer material and the sheet molding compound into a mold in sequence, setting the temperature and the pressure of the mold, and curing and molding the fire-receiving surface layer material and the sheet molding compound in the mold through high temperature and high pressure;
s6) obtaining the solidified and molded organic fireproof heat-insulating material.
Further, in the step S3), the predicted temperature ranges from 40 ℃ to 60 ℃, and the preset time ranges from 18 hours to 24 hours.
Further, in the step S5), the temperature of the die is 130-180 ℃, and the pressure of the die is 7-15 MPa.
Further, the step S5) includes setting the pressing time length according to the thickness of the heat insulating material in the mold.
Step S5) further comprises the step of obtaining that the thickness of the heat insulation material in the mould is x millimeters, namely the total thickness of the fire surface layer material and the sheet molding compound put in the mould is x millimeters, and setting the pressure duration to be x minutes according to the total thickness.
Further, the mold temperature in step S5) was 150 ℃.
The method comprises the steps of correspondingly processing a fire-resistant surface layer material and a non-fire-resistant surface layer material (sheet molding compound) into required sizes and shapes according to the sizes and shapes of products needing fire protection, firstly placing the fire-resistant surface layer material in a mold, then placing the sheet molding compound in the mold, setting the pressure duration according to the thickness of a heat insulation material in the mold, and curing and integrally forming the fire-resistant surface layer material and the sheet molding compound in the mold through high temperature and high pressure.
The invention has the beneficial effects that: the kaolin is matched with the non-halogenated flame retardant based on ammonium polyphosphate for use, so that the flame retardant can effectively retard flame, prevent organic matters from decomposing, achieve the purposes of fire insulation, flame retardance and heat insulation, has high strength, light weight and high fire resistance temperature, can well isolate flame, prevent the flame from spreading to the inside of a product or a device, and effectively protect the internal product or device. In addition, the organic refractory material provided by the invention can be designed into corresponding shapes according to different product requirements, and is flexible in design and high in forming speed.
Drawings
FIG. 1 is a schematic diagram of the preparation process of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
The first embodiment of the invention provides an organic fire-resistant heat-insulating material, which comprises the following raw materials in parts by weight: 20-30 parts of unsaturated resin, 15-25 parts of low shrinkage additive, 1.5-3.5 parts of zinc stearate, 0.3-1 part of curing agent, 30-60 parts of flame retardant, 0.2-3 parts of expanded graphite, 4-12 parts of kaolin and 20-50 parts of high silica cloth.
The flame retardant is Exolit AP 742 which is a German Kelain flame retardant, and Exolit AP 742 is a non-halogenated flame retardant based on ammonium polyphosphate, and the effectiveness of the flame retardant is exerted by the synergistic action of phosphorus and nitrogen. Exolit AP 742 functions in a manner different from other flame retardant technologies (e.g., chlorine or bromine containing flame retardants and minerals) in that its effect is achieved by swelling. The flame retardant material foams when exposed to flame, forming a carbon foam layer that protects the polymer by its insulating effect and reduces further oxygen ingress.
The second embodiment is an organic fire-resistant heat-insulating material, which comprises the following raw materials in parts by weight: unsaturated resin 21, low-shrinkage additive 17, zinc stearate 2, curing agent 0.5, flame retardant 33, expanded graphite 1.7, kaolin 4 and high silica cloth 20. The flame retardant is Exolit AP 742 which is a German flame retardant of Laine.
The method comprises the steps of arranging organic fire-resistant heat-insulating materials on the surface of a product to be protected, wherein the organic fire-resistant heat-insulating materials comprise a fire-receiving surface layer material and a non-fire-receiving surface layer material, and placing the fire-receiving surface layer material on the side, where flames can be generated, of the product according to the structure of the product to be protected.
The two sides of the high silica cloth of the organic fire-resistant heat-insulating material are coated with the Clane flame retardant Exolit AP 742, the expanded graphite and the kaolin, the Clane flame retardant Exolit AP 742 expands at high temperature to form a cavity structure, a hard shell is formed on the surface layer of the cavity structure, the expanded graphite is beneficial to forming the cavity structure, and the kaolin improves the hardness of the hard shell. The hard shell can well prevent flame from spreading inwards, and the cavity structure can well isolate heat and effectively prevent heat conduction. The high silica cloth also effectively prevents the flame from spreading into the product.
Expandable graphite is a graphite crystal having a hexagonal network planar layered structure composed of carbon elements, carbon atoms on the plane of layers are bonded by strong covalent bonds, and the layers are bonded by van der waals forces, and the bonding is very weak and the interlayer distance is large. Therefore, under appropriate conditions, many chemical substances such as acids, alkali metals, salts, etc. can be inserted between Graphite layers and bonded to carbon atoms to form a new chemical phase, i.e., Graphite Intercalation Compound (GIC). When heated to a suitable temperature, the interlayer compound can be instantly and rapidly decomposed to generate a large amount of gas, so that the graphite is expanded in the axial direction to form a new substance in the form of worms, i.e., expanded graphite. The expanded graphite adopted by the invention forms vermicular substances in the combustion process and can well play a role in heat insulation, the expanded graphite is matched with the Craine flame retardant Exolite AP 742 for use, and the Craine flame retardant Exolite AP 742 can well prevent organic matters from being combusted, inhibit the smoke amount and play a good role in synergistic flame retardance.
The kaolin is in a white, fine and soft soil shape, and has good physical and chemical properties such as plasticity, fire resistance and the like. The mineral components of the mineral composition mainly comprise kaolinite, halloysite, hydromica, illite, montmorillonite, quartz, feldspar and other minerals. After the fire surface layer material in the organic fire-resistant heat-insulating material is fired, the volume of the expanded graphite expands, a carbonized layer crust is formed on the surface of the Clane flame retardant Exolit AP 742, a mullite hard layer is formed on the surface of the Kaolin after the Kaolin is heated, and the Kaolin, the Clane flame retardant ExolitAP 742 and the expanded graphite are matched for use, so that the flame retardance can be effectively realized, and the decomposition of organic matters can be prevented.
The high silica cloth plays a role in bearing coating (flame retardant, expanded graphite and kaolin) and fire, flame and heat insulation.
A method for preparing an organic fire-resistant heat-insulating material, as shown in fig. 1, comprising the steps of:
s1) adding unsaturated resin and low-shrinkage additive into a reaction kettle, stirring, and sequentially adding curing agent, zinc stearate, flame retardant, graphite and kaolin into the reaction kettle according to a certain proportion to obtain a uniformly stirred mixture;
s2) uniformly coating the uniformly stirred mixture on the surface of the high silica cloth;
s3) thickening the high silica cloth coated with the mixture in a drying room, setting the temperature of the drying room to be 45 ℃ and the baking time to be 24 hours, and obtaining a thickened heated surface layer material;
s4) cutting the sheet molding compound and the fired surface layer material respectively to obtain the sheet molding compound with preset size and the fired surface layer material with the size matched with that of the sheet molding compound;
s5) sequentially placing the cut fire-receiving surface layer material and the sheet molding compound into a mold, setting the pressure of the mold to be 7-15 MPa at the temperature of 150 ℃, setting the pressure duration according to the thickness of the heat insulation material in the mold, and curing and molding the fire-receiving surface layer material and the sheet molding compound in the mold at high temperature and high pressure;
s6) obtaining the solidified and molded organic fireproof heat-insulating material.
By adopting the technical scheme disclosed by the invention, the following beneficial effects are obtained:
after the fire surface layer material in the organic fire-resistant heat-insulating material is fired, the volume of the expanded graphite expands, a carbonized layer crust is formed on the surface of the non-halogenated flame retardant based on ammonium polyphosphate, a mullite hard layer is formed on the surface of kaolin after the kaolin is heated, and the kaolin, the non-halogenated flame retardant based on ammonium polyphosphate and the expanded graphite are matched for use, so that the kaolin can effectively resist flame, prevent organic matters from being decomposed, and has high strength, light weight and high fire-resistant temperature.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements should also be considered within the scope of the present invention.
Claims (8)
1. The organic fireproof heat-insulating material is characterized by comprising the following raw materials in parts by weight: 20-30 parts of unsaturated resin, 15-25 parts of low-shrinkage additive, 1.5-3.5 parts of zinc stearate, 0.3-1 part of curing agent, 30-60 parts of flame retardant, 0.2-3 parts of expanded graphite, 4-12 parts of kaolin and 20-50 parts of high-silica cloth.
2. The organic fire-resistant heat-insulating material according to claim 1, wherein the fire-resistant heat-insulating material comprises the following raw materials in parts by weight: unsaturated resin 21, low-shrinkage additive 17, zinc stearate 2, curing agent 0.5, flame retardant 33, expanded graphite 1.7, kaolin 4 and high silica cloth 20.
3. The organic fire resistant insulation material according to claim 1 or 2, wherein the flame retardant is a non-halogenated flame retardant based on ammonium polyphosphate.
4. A method for preparing an organic fire-resistant heat-insulating material, which is suitable for the organic fire-resistant heat-insulating material of claims 1 to 3, comprising the steps of:
s1) adding unsaturated resin and low-shrinkage additive into a reaction kettle, stirring, and sequentially adding curing agent, zinc stearate, flame retardant, graphite and kaolin into the reaction kettle according to a certain proportion to obtain a uniformly stirred mixture;
s2) uniformly coating the uniformly stirred mixture on the surface of the high silica cloth;
s3) thickening the high silica cloth coated with the mixture at a preset temperature and for a preset time to obtain a thickened fire-receiving surface layer material;
s4) respectively cutting the sheet molding compound and the fired surface layer material to obtain the sheet molding compound with preset size and the fired surface layer material with the size matched with that of the sheet molding compound;
s5) putting the cut-out fire-receiving surface layer material and the sheet molding compound into a mold in sequence, setting the temperature and the pressure of the mold, and curing and molding the fire-receiving surface layer material and the sheet molding compound in the mold through high temperature and high pressure;
s6) obtaining the solidified and molded organic fireproof heat-insulating material.
5. The preparation method of the organic fire-resistant heat-insulating material according to claim 4, wherein the predicted temperature in the step S3) is 40-60 ℃, and the preset time period is 18-24 hours.
6. The method for preparing an organic refractory heat-insulating material according to claim 4 or 5, wherein the temperature of the mold in step S5) is 130 to 180 ℃, and the pressure of the mold is 7 to 15 MPa.
7. The method of claim 6, wherein the step S5) further comprises setting the pressing time period according to the thickness of the insulation material in the mold.
8. The method of preparing an organic refractory heat insulating material according to claim 4 or 5, wherein the mold temperature in step S5) is 150 ℃.
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