CN113444327A - Preparation method of borosilicate flame-retardant wall insulation board - Google Patents
Preparation method of borosilicate flame-retardant wall insulation board Download PDFInfo
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 41
- 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 28
- 238000009413 insulation Methods 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000004793 Polystyrene Substances 0.000 claims abstract description 29
- 229920002223 polystyrene Polymers 0.000 claims abstract description 29
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052796 boron Inorganic materials 0.000 claims abstract description 18
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000011324 bead Substances 0.000 claims abstract description 15
- 239000002245 particle Substances 0.000 claims abstract description 9
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 6
- 230000004048 modification Effects 0.000 claims abstract description 5
- 238000012986 modification Methods 0.000 claims abstract description 5
- 239000012467 final product Substances 0.000 claims abstract description 4
- 238000005187 foaming Methods 0.000 claims abstract description 4
- 238000005469 granulation Methods 0.000 claims abstract description 4
- 230000003179 granulation Effects 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 18
- 239000004088 foaming agent Substances 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 10
- 229920005989 resin Polymers 0.000 claims description 10
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 8
- 239000011398 Portland cement Substances 0.000 claims description 8
- 229910052744 lithium Inorganic materials 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 6
- 230000002209 hydrophobic effect Effects 0.000 claims description 6
- 239000011268 mixed slurry Substances 0.000 claims description 6
- 239000004609 Impact Modifier Substances 0.000 claims description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000012745 toughening agent Substances 0.000 claims description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical group C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 239000002270 dispersing agent Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000010881 fly ash Substances 0.000 claims description 3
- 239000003999 initiator Substances 0.000 claims description 3
- 230000000379 polymerizing effect Effects 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 2
- 239000000779 smoke Substances 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 5
- 230000006378 damage Effects 0.000 abstract description 4
- 229910010272 inorganic material Inorganic materials 0.000 abstract description 3
- 239000011147 inorganic material Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000012774 insulation material Substances 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 abstract 1
- 239000003469 silicate cement Substances 0.000 abstract 1
- 239000004794 expanded polystyrene Substances 0.000 description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 230000001804 emulsifying effect Effects 0.000 description 2
- 239000012796 inorganic flame retardant Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 231100000053 low toxicity Toxicity 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 239000004709 Chlorinated polyethylene Substances 0.000 description 1
- 239000004944 Liquid Silicone Rubber Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- KPSZQYZCNSCYGG-UHFFFAOYSA-N [B].[B] Chemical compound [B].[B] KPSZQYZCNSCYGG-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical group O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006248 expandable polystyrene Polymers 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 description 1
- 229910052912 lithium silicate Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- 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
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
-
- 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
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
-
- 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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
-
- 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
- C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2325/02—Homopolymers or copolymers of hydrocarbons
- C08J2325/04—Homopolymers or copolymers of styrene
- C08J2325/06—Polystyrene
-
- 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
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
-
- 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
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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
- C08K3/38—Boron-containing compounds
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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
- C08K7/26—Silicon- containing compounds
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention discloses a preparation method of a borosilicate flame-retardant wall insulation board, which relates to the technical field of wall insulation materials, wherein conventional boron flame retardants such as boron trioxide and zinc borate are used, the addition amount is 35 g to 100 kg per cubic meter of boron based on the volume of a final product, and the boron flame retardants do not influence the performance of other materials in the insulation board through experiments and are purely physically mixed, so that the boron flame retardants can be uniformly mixed and added in any links of polystyrene granulation, modification and foaming, can be mixed into modified polystyrene beads or directly mixed with auxiliary agents such as the polystyrene beads, water, silicate cement, curing agent and the like, but do not need to be added into hexabromine series, and the borosilicate polystyrene mixed board adopts a uniformly mixed production process, inherits the fireproof and heat-insulating properties of inorganic materials and the heat-insulating properties of the polystyrene particles, has the fireproof grade reaching A2, and does not shrink when encountering fire, The flame-retardant cable does not burn or smoke, cannot be penetrated by flame, and has the advantages of good dimensional stability, high compressive strength, difficult damage and the like.
Description
Technical Field
The invention relates to the technical field of wall insulation materials, in particular to a preparation method of a borosilicate flame-retardant wall insulation board.
Background
The polystyrene board is fully called as a polystyrene foam board, also called as a foam board or an EPS board, and is an expandable polystyrene bead containing a volatile liquid foaming agent, and is heated and pre-expanded in a mold to form a white solid with a fine closed pore structure, so that the polystyrene board has the advantages of excellent moisture retention and heat insulation performance, compression resistance, water resistance and moisture resistance, corrosion resistance and the like.
Disclosure of Invention
The invention aims to provide a preparation method of a borosilicate flame-retardant wall insulation board, which has the advantages that the production process of uniformly mixing a borosilicate polystyrene mixed board is adopted, the fireproof and heat-insulating properties of inorganic materials and the heat-insulating properties of polystyrene particles are inherited, the fireproof grade reaches A2 grade, no hexabromine series is required to be added, the environment is improved, the life safety of people is guaranteed, the board does not shrink, does not burn or smoke when meeting fire, flame cannot penetrate through, the board has the advantages of good size stability, high compressive strength, difficult damage and the like, the problems that the traditional EPS board is made of molded expanded polystyrene, is softened when heated more than 70 degrees and meets open fire are solved, the board is a flammable material, even if hexabromine and other flame retardants are added into common foamable EPS resin, the B2 grade flame retardant and the B1 grade flame retardant are realized, and hexabromine products have great harm to human bodies and the environment.
In order to achieve the purpose, the invention provides the following technical scheme: a preparation method of a borosilicate flame-retardant wall insulation board comprises the following steps:
step S1: adding a styrene monomer, an initiator, a dispersing agent, water, a foaming agent and other auxiliary agents into a reaction kettle together, polymerizing to obtain resin particles containing the foaming agent, and washing, centrifugally separating and drying the resin particles containing the foaming agent to obtain modified polystyrene beads;
step S2: firstly, adding water into a water reducing agent, and stirring the mixture uniformly; adding fly ash and portland cement, and stirring uniformly; adding resin adhesive, and stirring to be uniform; adding fiber, hydrophobic powder and lithium-based curing agent and stirring to be uniform; adding an air entraining agent and modified polystyrene beads, and stirring the mixture until the mixture is uniform; finally, uniformly mixing to obtain mixed slurry;
step S3: adding conventional boron flame retardants such as boron trioxide and zinc borate into any one of the steps S1 and S2, wherein the addition amount of the boron flame retardants is 35 g to 100 kg per cubic meter of boron contained in the final product;
step S4: and pouring the mixed slurry into a mold, leveling, standing for natural curing for 6 hours, and then removing the mold.
Optionally, the flame retardant in step S3 may be uniformly mixed and added in any link of polystyrene granulation, modification, and foaming, and may be added into modified polystyrene beads or directly mixed with polystyrene beads, water, portland cement, a curing agent, and other auxiliaries, but the hexabromine series is not required to be added.
Optionally, in step S1, the foaming agent is one or a mixture of calcium carbonate and sodium bicarbonate.
Optionally, the temperature of the added water in step S2 is adjusted according to the ambient temperature.
Optionally, in the step S2, the stirring time of the fiber, the hydrophobic powder and the curing agent is added, and is adjusted according to the curing speed.
Optionally, the other auxiliary agents in step S1 include a toughening agent, a filler and an impact modifier.
Compared with the prior art, the invention has the following beneficial effects:
the borosilicate-polystyrene mixed plate is uniformly mixed, the fireproof and heat-insulating performance of inorganic materials and the heat-insulating property of polystyrene particles are inherited, the fireproof grade reaches A2 grade, a hexabromine series is not required to be added, the environment is improved, the life safety of people is guaranteed, and the borosilicate-polystyrene mixed plate does not shrink, burn or smoke when meeting fire, cannot penetrate flame, and has the advantages of good size stability, high compressive strength, difficulty in damage and the like.
The invention uses the conventional boron flame retardants such as diboron trioxide and zinc borate, and the boron flame retardants such as diboron trioxide and zinc borate are important inorganic flame retardants used at the earliest time, so that the flame retardant has good flame retardant and smoke suppression performance, good thermal stability and low toxicity, and can improve the flame retardant performance of the fireproof material.
The curing agent is a lithium-based curing agent, the lithium-based curing agent is prepared by emulsifying a lithium-based silicate raw material and a unique catalyst at high temperature, and the portland cement has the characteristics of high strength, heat insulation, fire resistance and the like, and can effectively improve the strength and the flame retardant property of the polyphenyl board.
Drawings
FIG. 1 is a block diagram of the process flow of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a preparation method of a borosilicate flame-retardant wall insulation board comprises the following steps:
step S1: adding a styrene monomer, an initiator, a dispersing agent, water, a foaming agent and other auxiliary agents into a reaction kettle together, polymerizing to obtain resin particles containing the foaming agent, and washing, centrifugally separating and drying the resin particles containing the foaming agent to obtain modified polystyrene beads;
step S2: firstly, adding water into a water reducing agent, and stirring the mixture uniformly; the fly ash and the portland cement are added and stirred to be uniform, the portland cement has the advantages of high strength, heat insulation, fire resistance and the like, and the strength and the flame retardant property of the polystyrene board can be effectively improved; adding resin adhesive, and stirring to be uniform; adding fiber, hydrophobic powder and lithium-based curing agent, stirring to be uniform, wherein the lithium-based curing agent is formed by emulsifying lithium-based silicate raw material and unique catalyst at high temperature, the lithium silicate is the most advanced permeable liquid curing agent in the world at present, the symbol of silicon element is Si, the atomic weight is 28.0855, crystalline silicon has diamond crystal lattice, is hard and brittle, the melting point is 1410 ℃, the boiling point is 2355 ℃, the hardness is 7, and amorphous silicon is gray black powder; adding an air entraining agent and modified polystyrene beads, and stirring the mixture until the mixture is uniform; finally, uniformly mixing to obtain mixed slurry;
step S3: and (3) adding conventional Boron flame retardants such as Boron trioxide and zinc borate into any one of the steps S1 and S2, wherein the Boron is 35 g to 100 kg per cubic meter calculated according to the volume of the final product, the elemental symbol of Boron (Boron) is B, the elemental Boron is black or dark brown powder, and the melting point is 2076 ℃. Boiling point 3927 ℃, boron is relatively inert. Elemental boron has a hardness similar to diamond. Boron flame retardants such as diboron trioxide and zinc borate are the most used important inorganic flame retardants, and are characterized by good thermal stability, low toxicity, smoke abatement, better compounding effect with other flame retardants, and common use in the production of fire-proof coatings, etc., the diboron trioxide and the zinc borate have good flame-retardant and smoke-suppressing performance and good thermal stability, can improve the flame-retardant performance of fire-proof materials, and do not need to add hexabromine series, improve the environment and ensure the life safety of people;
step S4: and pouring the mixed slurry into a mold, leveling, standing for natural curing for 6 hours, and then removing the mold.
Further, the flame retardant in step S3 can be uniformly mixed and added in any link of polystyrene granulation, modification and foaming, and can be doped into modified polystyrene beads or directly mixed with polystyrene beads, water, portland cement, a curing agent and other auxiliaries without adding hexabromine series, the diboron trioxide and the zinc borate have good flame retardant and smoke suppression properties and good thermal stability, the flame retardant property of the fireproof material can be improved, the hexabromine series is not required to be added, the environment is improved, and the life safety of people is guaranteed.
Furthermore, in the step S1, the foaming agent is one or a mixture of calcium carbonate and sodium bicarbonate, and the calcium carbonate can effectively increase the hardness and rigidity of the polystyrene board, improve the processability and increase the heat resistance.
Further, the temperature of the water added in step S2 is adjusted according to the ambient temperature.
Further, in step S2, the stirring time of the fiber, the hydrophobic powder and the curing agent is adjusted according to the curing speed.
Further, in the step S1, the other additives include a toughening agent, a filler and an impact modifier, the toughening agent is liquid silicone rubber, the filler is talc powder, and the impact modifier is chlorinated polyethylene, so that the wall insulation board has the characteristics of high strength, high impact strength, high hardness and good quality.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A preparation method of a borosilicate flame-retardant wall insulation board is characterized by comprising the following steps:
step S1: adding a styrene monomer, an initiator, a dispersing agent, water, a foaming agent and other auxiliary agents into a reaction kettle together, polymerizing to obtain resin particles containing the foaming agent, and washing, centrifugally separating and drying the resin particles containing the foaming agent to obtain modified polystyrene beads;
step S2: firstly, adding water into a water reducing agent, and stirring the mixture uniformly; adding fly ash and portland cement, and stirring uniformly; adding resin adhesive, and stirring to be uniform; adding fiber, hydrophobic powder and lithium-based curing agent and stirring to be uniform; adding an air entraining agent and modified polystyrene beads, and stirring the mixture until the mixture is uniform; finally, uniformly mixing to obtain mixed slurry;
step S3: adding conventional boron flame retardants such as boron trioxide and zinc borate into any one of the steps S1 and S2, wherein the addition amount of the boron flame retardants is 35 g to 100 kg per cubic meter of boron contained in the final product;
step S4: and pouring the mixed slurry into a mold, leveling, standing for natural curing for 6 hours, and then removing the mold.
2. The preparation method of the borosilicate flame-retardant wall insulation board according to claim 1, characterized in that: the flame retardant in the step S3 can be uniformly mixed and added in any link of polystyrene granulation, modification and foaming, and can be doped into modified polystyrene beads or directly mixed with auxiliaries such as polystyrene beads, water, portland cement, curing agents and the like, but hexabromine series is not required to be added.
3. The preparation method of the borosilicate flame-retardant wall insulation board according to claim 1, characterized in that: in the step S1, the foaming agent is one or a mixture of calcium carbonate and sodium bicarbonate.
4. The preparation method of the borosilicate flame-retardant wall insulation board according to claim 1, characterized in that: the temperature of the water added in step S2 is adjusted according to the ambient temperature.
5. The preparation method of the borosilicate flame-retardant wall insulation board according to claim 1, characterized in that: and in the step S2, the stirring time of the fiber, the hydrophobic powder and the curing agent is added, and the stirring time is adjusted according to the curing speed.
6. The preparation method of the borosilicate flame-retardant wall insulation board according to claim 1, characterized in that: the other auxiliary agents in the step S1 comprise toughening agents, fillers and impact modifiers.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114735975A (en) * | 2022-05-20 | 2022-07-12 | 东易日盛智能家居科技(枣庄)有限公司 | Flame-retardant corrosion-resistant plate and preparation method thereof |
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2021
- 2021-07-23 CN CN202110834344.2A patent/CN113444327A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114735975A (en) * | 2022-05-20 | 2022-07-12 | 东易日盛智能家居科技(枣庄)有限公司 | Flame-retardant corrosion-resistant plate and preparation method thereof |
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