CN113088068A - Novel flame-retardant slow-resilience fireproof brick - Google Patents
Novel flame-retardant slow-resilience fireproof brick Download PDFInfo
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- CN113088068A CN113088068A CN202110499248.7A CN202110499248A CN113088068A CN 113088068 A CN113088068 A CN 113088068A CN 202110499248 A CN202110499248 A CN 202110499248A CN 113088068 A CN113088068 A CN 113088068A
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 50
- 239000011449 brick Substances 0.000 title claims abstract description 48
- 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 title claims abstract description 38
- 239000000835 fiber Substances 0.000 claims abstract description 29
- 239000000919 ceramic Substances 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 28
- 239000000843 powder Substances 0.000 claims abstract description 28
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 26
- 229920000570 polyether Polymers 0.000 claims abstract description 26
- 229920005862 polyol Polymers 0.000 claims abstract description 22
- 150000003077 polyols Chemical class 0.000 claims abstract description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 21
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims abstract description 21
- 239000010439 graphite Substances 0.000 claims abstract description 21
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 21
- 239000003054 catalyst Substances 0.000 claims abstract description 16
- 239000002131 composite material Substances 0.000 claims abstract description 15
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000004088 foaming agent Substances 0.000 claims abstract description 8
- 239000006260 foam Substances 0.000 claims abstract description 6
- 239000003381 stabilizer Substances 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 150000001412 amines Chemical class 0.000 claims description 10
- 229920002545 silicone oil Polymers 0.000 claims description 10
- 239000012974 tin catalyst Substances 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 239000011148 porous material Substances 0.000 claims description 9
- 230000009970 fire resistant effect Effects 0.000 claims description 5
- HQUQLFOMPYWACS-UHFFFAOYSA-N tris(2-chloroethyl) phosphate Chemical compound ClCCOP(=O)(OCCCl)OCCCl HQUQLFOMPYWACS-UHFFFAOYSA-N 0.000 claims description 5
- BDFBPPCACYFGFA-UHFFFAOYSA-N 2,4,6-tris(2,4,6-tribromophenoxy)-1,3,5-triazine Chemical compound BrC1=CC(Br)=CC(Br)=C1OC1=NC(OC=2C(=CC(Br)=CC=2Br)Br)=NC(OC=2C(=CC(Br)=CC=2Br)Br)=N1 BDFBPPCACYFGFA-UHFFFAOYSA-N 0.000 claims description 3
- WHHGLZMJPXIBIX-UHFFFAOYSA-N decabromodiphenyl ether Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1OC1=C(Br)C(Br)=C(Br)C(Br)=C1Br WHHGLZMJPXIBIX-UHFFFAOYSA-N 0.000 claims description 3
- VONWDASPFIQPDY-UHFFFAOYSA-N dimethyl methylphosphonate Chemical compound COP(C)(=O)OC VONWDASPFIQPDY-UHFFFAOYSA-N 0.000 claims description 3
- JZZBTMVTLBHJHL-UHFFFAOYSA-N tris(2,3-dichloropropyl) phosphate Chemical compound ClCC(Cl)COP(=O)(OCC(Cl)CCl)OCC(Cl)CCl JZZBTMVTLBHJHL-UHFFFAOYSA-N 0.000 claims description 3
- GTRSAMFYSUBAGN-UHFFFAOYSA-N tris(2-chloropropyl) phosphate Chemical compound CC(Cl)COP(=O)(OCC(C)Cl)OCC(C)Cl GTRSAMFYSUBAGN-UHFFFAOYSA-N 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 2
- 230000002265 prevention Effects 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 10
- 238000002485 combustion reaction Methods 0.000 abstract description 8
- 239000002341 toxic gas Substances 0.000 abstract description 4
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract description 2
- 230000002195 synergetic effect Effects 0.000 abstract description 2
- 229920002635 polyurethane Polymers 0.000 description 17
- 239000004814 polyurethane Substances 0.000 description 17
- 238000006243 chemical reaction Methods 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000005187 foaming Methods 0.000 description 4
- 229910052726 zirconium Inorganic materials 0.000 description 4
- 239000004566 building material Substances 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 230000002688 persistence Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000003385 bacteriostatic effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
- C08G18/7621—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring being toluene diisocyanate including isomer mixtures
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0014—Use of organic additives
- C08J9/0038—Use of organic additives containing phosphorus
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0085—Use of fibrous compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
- C08J2375/08—Polyurethanes from polyethers
Abstract
The invention discloses a novel flame-retardant slow-rebound fireproof brick, which consists of a component A and a component B, wherein the component A comprises 20-50 parts of composite polyether polyol, 20-60 parts of composite flame retardant, 0.05-0.5 part of catalyst, 0.1-1 part of foam stabilizer, 0.5-2 parts of foaming agent, 0.5-4 parts of cell opener and 1-4 parts of dye; the component B is 10-40 parts of toluene diisocyanate, and the composite flame retardant is 20-50% of liquid flame retardant, 25-55% of expanded graphite, 10-30% of aluminum hydroxide and 5-30% of ceramic fiber powder. A. And mixing the component B, reacting and molding in a mold, curing, removing the mold, and cutting into various required shapes according to requirements. Ceramic fiber powder can improve the high temperature resistance of fire prevention brick, plays the skeleton support effect after the burning, makes the difficult emergence of combustion products collapse, and effectual toxic gas and smog have blockked, and the synergistic effect of compound fire retardant further promotes the flame retardant efficiency of fire prevention brick, is difficult to take place the naked light burning, and ceramic fiber powder's addition can also reduce the coefficient of heat conductivity of fire prevention brick, improves fire prevention plugging material's heat-proof quality.
Description
Technical Field
The invention belongs to the field of building chemical materials and the technical field of preparation thereof, and particularly relates to a novel flame-retardant slow-rebound fireproof brick.
Background
In recent years, fire disasters caused by construction sites and building materials in China tend to be frequent, and a lot of extra-large fire disasters are related to the building materials, so that huge loss is caused, and fire prevention of the building materials becomes more important. The building fire protection system is divided into an active fire protection system and a passive fire protection system, wherein the active fire protection system consists of automatic (manual) control alarm, spraying, fire protection electricity utilization, water supply and other equipment systems; the passive fire protection system is composed of fire-resistant or non-combustible decoration materials, such as fire-resistant doors, fire-resistant suspended ceilings, and fire-resistant plugging materials such as cables, pipelines and the like which penetrate through holes formed in walls and floors and building gaps.
The fireproof plugging material generally refers to a material which is used for a cable bridge, a conduit, various pipelines and the like to penetrate through a hole formed in a wall or a floor slab or large holes and the like caused by some reasons in the process of building construction and has the functions of heat insulation, fire prevention, flame retardance and smoke prevention. The fireproof plugging material is widely applied, and almost all buildings are made of the fireproof plugging material, in particular to buildings and important public buildings in the industries of electric power, petrifaction, transportation, metallurgy, communication and the like.
At present, domestic fireproof plugging materials mainly comprise a fire retardant bag, inorganic plugging materials and organic plugging materials, but the materials have some defects and drawbacks. The fire retardant package can not achieve the smoke-tight effect, the air tightness requirement can not be met in some special industries, and the construction is difficult to control; the inorganic blocking material is easy to crack and inconvenient to construct; the organic blocking material can corrode a matrix after long-term use, and fire hazard is easily formed. Therefore, in order to overcome the defects of the fireproof plugging material, a novel material is urgently needed to replace the fireproof plugging material, and the polyurethane fireproof plugging material is convenient to apply. The polyurethane fireproof plugging materials have various types, for example, the rigid polyurethane fireproof flame-retardant foam material with wider application is generally used for places with small slits and holes; for places with large holes, fire-proof blocks or fire-proof bricks are generally used, the materials are polyurethane slow-resilience fire-proof flame-retardant materials, have elasticity, are easy to cut, and can be made into various shapes for plugging. The invention patent CN101003611A provides a bi-component foaming system for fireproof plugging and a product thereof, the bi-component foaming system is preformed into fireproof foaming blocks in a factory, and the bi-component foaming system has the characteristics of flexibility, easy construction, labor hour saving and the like during construction; the invention patent CN106750112B prepares a high-efficiency flame-retardant slow-rebound polyurethane sponge, which has good effects on fire prevention and flame retardation; the invention patent CN112011170A discloses a high-flame-retardant slow-rebound memory polyurethane sponge, which has good slow rebound resilience and high flame-retardant property, and simultaneously has certain antibacterial, bacteriostatic and anti-aging properties.
Although polyurethane has been kick-backed slowly fire prevention piece or fire brick has solved some problems that are used for the ordinary fire prevention plugging material of great hole, its itself also has some not enoughly, for example can not resist high temperature, and fire-retardant persistence is poor etc. under continuous high temperature, although can play fire prevention fire-retardant effect, but the product after the burning takes place to collapse very easily and leads to the shutoff department damaged, and a large amount of toxic gas and smog will be followed the damaged leakage at this moment, cause huge accident hidden danger.
Disclosure of Invention
Aiming at the problems of no high temperature resistance, poor flame-retardant persistence and easy collapse of products after combustion in a fireproof block or a fireproof brick in the prior art, the invention provides the novel flame-retardant slow-rebound fireproof brick, wherein ceramic fiber powder is added into a composite flame retardant, so that the flame-retardant effect is further improved, the high temperature resistance of the polyurethane fireproof plugging material is improved, a framework supporting effect is achieved after combustion, the combustion products are not easy to collapse, toxic gas and smoke are effectively blocked, and meanwhile, the heat conductivity coefficient of the fireproof brick can be reduced by adding the ceramic fiber powder, so that the plugging material with better heat-insulating property is obtained.
The invention is realized by the following technical scheme:
a novel flame-retardant slow-rebound fireproof brick comprises a component A and a component B, and is composed of the following raw materials in parts by weight, wherein the component A comprises 20-50 parts of composite polyether polyol, 20-60 parts of a composite flame retardant, 0.05-0.5 part of a catalyst, 0.1-1 part of a foam stabilizer, 0.5-2 parts of a foaming agent, 0.5-4 parts of a pore-forming agent and 1-4 parts of a dye; the component B is 10-40 parts of toluene diisocyanate;
the composite flame retardant is 20-50% of liquid flame retardant, 25-55% of expanded graphite, 10-30% of aluminum hydroxide and 5-30% of ceramic fiber powder. .
Further, the compound polyether polyol is polyether with molecular weight of 700 of 60-90% and polyether with molecular weight of 3000 of 10-40%.
Further, the liquid flame retardant is more than one of tris (2-chloroethyl) phosphate, tris (2, 3-dichloropropyl) phosphate, dimethyl methylphosphonate, tris (2-chloropropyl) phosphate, FR-300 and FR-368.
Further, the mesh number of the expanded graphite is 30-200 meshes; the mesh number of the aluminum hydroxide is 100-600 meshes; the mesh number of the ceramic fiber powder is 100-800 meshes.
Further, the catalyst is 65-85% of amine catalyst and 15-35% of tin catalyst; the foam stabilizer is L-580 type silicone oil; the foaming agent is a water foaming agent; the pore former is SK-1900 type pore former; the dye is more than one of oily red, oily yellow, oily black and oily white.
Furthermore, the toluene diisocyanate is more than one of TDI-65, TDI-80 and TDI-100.
According to the preparation method of the novel flame-retardant slow-rebound fireproof brick, the composite polyether polyol, the composite flame retardant, the catalyst, the foam stabilizer, the foaming agent, the pore-forming agent and the dye are stirred and mixed uniformly to form the component A, the component B is toluene diisocyanate, the A, B components are mixed and stirred in proportion and poured into a mold to be reacted and formed, the mold is removed after curing, the fireproof brick is generated, the fireproof brick can be made into fireproof bricks in various shapes according to the shape of the mold, also large square fireproof bricks can be prepared, and the fireproof brick can be cut into various required shapes by a cutting machine according to requirements.
Advantageous effects
(1) The addition of the ceramic fiber powder can improve the high temperature resistance of the fireproof brick, and the fireproof brick plays a role in supporting a framework after combustion, so that a combustion product is not easy to collapse, toxic gas and smoke are effectively blocked, the flame retardant effect of the fireproof brick is further improved due to the synergistic effect of the composite flame retardant, open fire combustion is not easy to occur, the heat conductivity coefficient of the fireproof brick can be reduced due to the addition of the ceramic fiber powder, and the heat insulation performance of the fireproof plugging material is improved;
(2) the flame-retardant slow-rebound fireproof brick prepared by the invention has excellent fireproof and flame-retardant properties, is suitable for buildings and important public buildings in the industries of electric power, petrifaction, transportation, metallurgy, communication and the like, even some buildings with higher fireproof level, and has better economic and social benefits.
Detailed Description
For further understanding of the contents, features and effects of the present invention, the following examples are set forth without any intention to limit the scope of the present invention, and all equivalent technical solutions are also within the scope of the present invention, and the scope of the present invention should be defined by the claims.
The parts described in the following examples are parts by weight.
The ceramic fiber powder is ceramic fiber powder of different types produced by Shandong Ming Ye refractory fiber Co., Ltd, such as common type, standard type, high purity type, high aluminum property, low zirconium type, zirconium-containing type, polycrystalline fiber type, etc.
Example 1
20 parts of polyether polyol with the molecular weight of 700, 6 parts of polyether polyol with the molecular weight of 3000, 16 parts of tris (2-chloroethyl) phosphate, 20 parts of expanded graphite, 11 parts of aluminum hydroxide, 7.1 parts of ceramic fiber powder, 0.14 part of amine catalyst, 0.06 part of tin catalyst, 0.5 part of L-580 type silicone oil, 1.2 parts of water, 2 parts of SK-1900 type pore opening agent and 1 part of red polyurethane dye are mixed together and uniformly stirred to form a component A, the component B is 15 parts of TDI-80, the two components A, B are mixed, stirred and poured into a mold for reaction and forming, the mold is removed after curing, the fireproof brick is generated, and the fireproof brick is cut into various required shapes by a cutting machine according to requirements.
Wherein the specification of the expanded graphite is 80 meshes; the specification of the aluminum hydroxide is 325 meshes; the ceramic fiber powder is of standard type (Al)2O3The content is more than or equal to 43 percent) and the specification is 300 meshes.
Example 2
18 parts of polyether polyol with the molecular weight of 700, 12 parts of polyether polyol with the molecular weight of 3000, 9 parts of tris (2-chloroethyl) phosphate, 13 parts of expanded graphite, 10 parts of aluminum hydroxide, 11.91 parts of ceramic fiber powder, 0.19 part of amine catalyst, 0.1 part of tin catalyst, 0.4 part of L-580 type silicone oil, 1.4 parts of water, 3 parts of SK-1900 type pore opening agent, 0.5 part of red polyurethane dye and 0.5 part of yellow polyurethane dye are mixed together and uniformly stirred to form a component A, 20 parts of TDI-65 is used as a component B, the A, B two components are mixed, stirred and poured into a mold for reaction and forming, the mold is removed after curing, fire-proof bricks are generated, and the fire-proof bricks are cut into various required shapes by a cutting machine according to requirements.
Wherein the specification of the expanded graphite is 80 meshes; the specification of the aluminum hydroxide is 400 meshes; the ceramic fiber powder is of standard type (Al)2O3The content is more than or equal to 43 percent) and the specification is 325 meshes.
Example 3
25 parts of polyether polyol with the molecular weight of 700, 10 parts of polyether polyol with the molecular weight of 3000, 6 parts of dimethyl methylphosphonate, 5 parts of expanded graphite, 3 parts of aluminum hydroxide, 4.7 parts of ceramic fiber powder, 0.16 part of amine catalyst, 0.04 part of tin catalyst, 0.6 part of L-580 type silicone oil, 1 part of water, 2.5 parts of SK-1900 type pore-forming agent, 1 part of red and 1 part of black polyurethane dye are mixed together and uniformly stirred to form a component A, the component B comprises 30 parts of TDI-80 and 10 parts of TDI-65, the A, B components are mixed, stirred and poured into a mold for reaction and forming, the mold is removed after curing, the fireproof brick is produced, and the fireproof brick is cut into various required shapes by a cutting machine according to requirements.
Wherein the specification of the expanded graphite is 50 meshes; the specification of the aluminum hydroxide is 200 meshes; the ceramic fiber powder is of zirconium-containing type (Al)2O3+SiO2+ZrO2Content is not less than 99 percent, ZrO2Content is more than or equal to 15 percent) and the specification is 400 meshes.
Example 4
Firstly, 30 parts of polyether polyol with the molecular weight of 700, 10 parts of polyether polyol with the molecular weight of 3000, 4 parts of FR-300, 5 parts of FR-368, 7 parts of expanded graphite, 2.78 parts of aluminum hydroxide, 4 parts of ceramic fiber powder, 0.26 part of amine catalyst, 0.09 part of tin catalyst, 0.32 part of L-580 type silicone oil, 1.6 parts of water, 4 parts of SK-1900 type pore opening agent and 1 part of red polyurethane dye are mixed together and uniformly stirred to form a component A, the component B is 30 parts of TDI-100, the A, B two components are mixed, stirred and poured into a mold for reaction and forming, the mold is removed after curing, the fireproof brick is produced, and the fireproof brick is cut into various required shapes by a cutting machine according to requirements.
Wherein the specification of the expanded graphite is 100 meshes; the specification of the aluminum hydroxide is 300 meshes; the ceramic fiber powder is high-purity (Al)2O3Content is more than or equal to 44 percent) and the specification is 200 meshes.
Example 5
Firstly, 15 parts of polyether polyol with the molecular weight of 700, 5 parts of polyether polyol with the molecular weight of 3000, 12 parts of tris (2, 3-dichloropropyl) phosphate, 24 parts of expanded graphite, 10 parts of aluminum hydroxide, 14.62 parts of ceramic fiber powder, 0.105 part of amine catalyst, 0.045 part of tin catalyst, 0.53 part of L-580 type silicone oil, 0.9 part of water, 1.8 parts of SK-1900 type pore former, 0.5 part of yellow and 0.5 part of black polyurethane dye are mixed together and uniformly stirred to form a component A, and a component B is 10 parts of TDI-80 and 5 parts of TDI-100, wherein A, B is mixed, stirred and poured into a mold for reaction and molding, the mold is removed after curing, and a fireproof brick is generated, and is cut into various required shapes by a cutting machine according to requirements.
WhereinThe specification of the expanded graphite is 50 meshes; the specification of the aluminum hydroxide is 500 meshes; the ceramic fiber powder is in a polycrystalline form (Al)2O3The content is more than or equal to 72 percent) and low zirconium type (Al)2O3+SiO2+ZrO2Content is not less than 99 percent, ZrO2Content 5-7%), half of each, 500 mesh.
Example 6
25 parts of polyether polyol with the molecular weight of 700, 5 parts of polyether polyol with the molecular weight of 3000, 15 parts of tris (2-chloropropyl) phosphate, 15 parts of expanded graphite, 4 parts of aluminum hydroxide, 9.42 parts of ceramic fiber powder, 0.3 part of amine catalyst, 0.1 part of tin catalyst, 0.45 part of L-580 type silicone oil, 1.53 parts of water, 3.2 parts of SK-1900 type pore-opening agent, 0.5 part of yellow and 0.5 part of red polyurethane dye are mixed together and uniformly stirred to form a component A, the component B is 20 parts of TDI-80, the A, B two components are mixed, stirred and poured into a mold for reaction and forming, the mold is removed after curing, the fireproof brick is produced, and the fireproof brick is cut into various required shapes by a cutting machine according to requirements.
Wherein the specification of the expanded graphite is 80 meshes; the specification of the aluminum hydroxide is 300 meshes; the ceramic fiber powder is in a polycrystalline form (Al)2O3Content not less than 72%) and standard type (Al)2O3The content is more than or equal to 43 percent), each accounts for half, and the specification is 400 meshes.
Comparative example 1
20 parts of polyether polyol with the molecular weight of 700, 6 parts of polyether polyol with the molecular weight of 3000, 18 parts of tris (2-chloroethyl) phosphate, 22 parts of expanded graphite, 15.1 parts of aluminum hydroxide, 0.14 part of amine catalyst, 0.06 part of tin catalyst, 0.5 part of L-580 type silicone oil, 1.2 parts of water, 2 parts of SK-1900 type pore-opening agent and 1 part of red polyurethane dye are mixed together and uniformly stirred to form a component A, the component B is 15 parts of TDI-80, the two components A, B are mixed, stirred and poured into a mold for reaction and forming, the mold is removed after curing, the fireproof brick is generated, and the fireproof brick is cut into various required shapes by a cutting machine according to requirements.
Wherein the specification of the expanded graphite is 80 meshes; the specification of the aluminum hydroxide is 325 meshes; the ceramic fiber powder is of standard type (Al)2O3The content is more than or equal to 43 percent) and the specification is 300 meshes.
Comparative example 2
20 parts of polyether polyol with the molecular weight of 700, 6 parts of polyether polyol with the molecular weight of 3000, 25 parts of expanded graphite, 15 parts of aluminum hydroxide, 14.1 parts of ceramic fiber powder, 0.14 part of amine catalyst, 0.06 part of tin catalyst, 0.5 part of L-580 type silicone oil, 1.2 parts of water, 2 parts of SK-1900 type pore former and 1 part of red polyurethane dye are mixed together and uniformly stirred to form a component A, the component B is 15 parts of TDI-80, the two components A, B are mixed, stirred and poured into a mold for reaction and forming, the mold is removed after curing, the fireproof brick is produced, and the fireproof brick is cut into various required shapes by a cutting machine according to requirements.
Wherein the specification of the expanded graphite is 80 meshes; the specification of the aluminum hydroxide is 325 meshes; the ceramic fiber powder is of standard type (Al)2O3The content is more than or equal to 43 percent) and the specification is 300 meshes.
And (3) performance testing:
the flame retardant effect of the fireproof bricks prepared in the embodiment 1, the comparative example 1 and the comparative example 2 and various performance parameters of the flame retardant material are detected, and the results are shown in the following table 1, and as can be seen from the table 1, the fireproof brick prepared by using the composite flame retardant has the advantages of better flame retardant effect, high temperature resistance, good flame retardant continuity, difficulty in collapse after combustion and obvious advantages.
TABLE 1 flame-retardant property comparison of flame-retardant slow-rebound fireproof bricks
Claims (6)
1. A novel flame-retardant slow-rebound fireproof brick is characterized in that the material comprises a component A and a component B, and the material comprises the following raw materials in parts by weight, wherein the component A comprises 20-50 parts of composite polyether polyol, 20-60 parts of a composite flame retardant, 0.05-0.5 part of a catalyst, 0.1-1 part of a foam stabilizer, 0.5-2 parts of a foaming agent, 0.5-4 parts of a pore-forming agent and 1-4 parts of a dye; the component B is 10-40 parts of toluene diisocyanate;
the composite flame retardant is 20-50% of liquid flame retardant, 25-55% of expanded graphite, 10-30% of aluminum hydroxide and 5-30% of ceramic fiber powder.
2. The fire-retardant slow-rebound fireproof brick according to claim 1, wherein the composite polyether polyol is polyether with molecular weight of 700 60-90% and polyether with molecular weight of 3000 10-40%.
3. The fire retardant slow rebound fire resistant brick according to claim 1, wherein the liquid fire retardant is one or more of tris (2-chloroethyl) phosphate, tris (2, 3-dichloropropyl) phosphate, dimethyl methylphosphonate, tris (2-chloropropyl) phosphate, FR-300 and FR-368.
4. The fire-retardant slow-rebound fireproof brick according to claim 1, wherein the mesh number of the expanded graphite is 30-200 mesh; the mesh number of the aluminum hydroxide is 100-600 meshes; the mesh number of the ceramic fiber powder is 100-800 meshes.
5. The fire-retardant slow-rebound fireproof brick according to claim 1, wherein the catalyst is 65-85% of amine catalyst and 15-35% of tin catalyst; the foam stabilizer is L-580 type silicone oil; the foaming agent is a water foaming agent; the pore former is SK-1900 type pore former; the dye is more than one of oily red, oily yellow, oily black and oily white.
6. The fire-retardant slow-rebound fireproof brick according to claim 1, wherein the toluene diisocyanate is one or more of TDI-65, TDI-80 and TDI-100.
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