CN115322515A - Composite heat-insulating material and preparation method thereof - Google Patents
Composite heat-insulating material and preparation method thereof Download PDFInfo
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- CN115322515A CN115322515A CN202210888087.5A CN202210888087A CN115322515A CN 115322515 A CN115322515 A CN 115322515A CN 202210888087 A CN202210888087 A CN 202210888087A CN 115322515 A CN115322515 A CN 115322515A
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- 239000002131 composite material Substances 0.000 title claims abstract description 42
- 239000011810 insulating material Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 48
- 239000011491 glass wool Substances 0.000 claims abstract description 26
- 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 25
- 239000003063 flame retardant Substances 0.000 claims abstract description 25
- 239000006260 foam Substances 0.000 claims abstract description 24
- 239000003085 diluting agent Substances 0.000 claims abstract description 23
- 239000004088 foaming agent Substances 0.000 claims abstract description 23
- 239000011324 bead Substances 0.000 claims abstract description 22
- 238000007667 floating Methods 0.000 claims abstract description 22
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229920001084 poly(chloroprene) Polymers 0.000 claims abstract description 22
- 239000003054 catalyst Substances 0.000 claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 19
- 239000003822 epoxy resin Substances 0.000 claims abstract description 19
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 19
- 239000011398 Portland cement Substances 0.000 claims abstract description 17
- 239000010881 fly ash Substances 0.000 claims abstract description 17
- 239000000835 fiber Substances 0.000 claims abstract description 12
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 16
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Natural products CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 16
- 239000012774 insulation material Substances 0.000 claims description 13
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 11
- 239000011347 resin Substances 0.000 claims description 11
- 239000011259 mixed solution Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 239000002002 slurry Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 claims description 8
- 239000006229 carbon black Substances 0.000 claims description 6
- 239000011268 mixed slurry Substances 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 4
- 125000000524 functional group Chemical group 0.000 claims description 4
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 2
- 239000004841 bisphenol A epoxy resin Substances 0.000 claims description 2
- 150000001732 carboxylic acid derivatives Chemical group 0.000 claims description 2
- 229920003986 novolac Polymers 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 2
- 125000003944 tolyl group Chemical group 0.000 claims description 2
- 150000001408 amides Chemical class 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 11
- 238000002485 combustion reaction Methods 0.000 abstract description 6
- 239000000779 smoke Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 231100000956 nontoxicity Toxicity 0.000 abstract description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- 238000004321 preservation Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 238000003763 carbonization Methods 0.000 description 6
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Natural products CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000000197 pyrolysis Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000005979 thermal decomposition reaction Methods 0.000 description 3
- 239000011358 absorbing material Substances 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011381 foam concrete Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 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
- C08J9/04—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
- C08J9/0014—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
- C08J9/0061—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
- C08J9/0066—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
- 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
- C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
- C08J2361/04—Condensation polymers of aldehydes or ketones with phenols only
- C08J2361/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
-
- 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
- C08J2411/00—Characterised by the use of homopolymers or copolymers of chloroprene
-
- 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
- C08J2463/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention provides a composite heat-insulating material and a preparation method thereof, and relates to the technical field of building heat insulation. The composite heat-insulating material and the preparation method thereof comprise the following raw materials in parts by weight: 10-20 parts of epoxy resin, 20-30 parts of fly ash, 15-20 parts of portland cement, 6-10 parts of chloroprene rubber, 12-24 parts of phenolic foam, 2-5 parts of fiber, 13-20 parts of glass wool, 9-15 parts of floating bead, 10-20 parts of diluent, 2-4 parts of flame retardant, 0.3-0.7 part of foaming agent, 10-15 parts of curing agent and 0.5-1.0 part of catalyst. The invention provides a composite heat-insulating material and a preparation method thereof, wherein inorganic components and organic components are mixed, and the composite material prepared by matching the components has very good heat-insulating and flame-retardant effects, and has the characteristics of light weight, fire resistance, no combustion in open fire, no smoke, no toxicity, wide use temperature range, no shrinkage, no embrittlement and the like in a low-temperature environment, so that the use performance of the composite heat-insulating material is more excellent.
Description
Technical Field
The invention relates to the technical field of building heat preservation, in particular to a composite heat preservation material and a preparation method thereof.
Background
The building energy conservation is a key point of the development of the 21 st century Chinese construction industry, according to the forecast of relevant departments, the building energy conservation is about 20 percent of the national total energy consumption, and the energy consumption of building materials occupies a large proportion in the using process. In order to reduce the heat dissipation loss of buildings, the adoption of building materials with good heat insulation performance is an important measure.
In a building, the heat loss of the outer protective structure is large, and the wall body in the outer protective structure accounts for a large part. Therefore, the reformation of building walls and the development of wall energy-saving technology are the most important links of the building energy-saving technology, the development of external wall heat-insulating technology is the main implementation mode of building energy saving, and at present, common external walls or internal walls are made of foam or inflammable products such as foam boards and the like as heat-insulating materials, so that serious fire hazard exists in the heat-insulating process, and the high concern of relevant departments is caused.
At present, the materials used for the heat preservation of the external wall of the building in China mainly comprise organic materials such as polystyrene, phenolic resin boards, polyurethane and the like, and inorganic materials such as rock wool, glass wool, expanded perlite heat preservation mortar, foam concrete and the like. The problems of poor heat insulation effect, low strength and poor flame retardance generally exist.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a composite thermal insulation material and a preparation method thereof, and solves the problem that the existing thermal insulation material is not enough to be applied to buildings with high requirements on strength, thermal insulation and flame retardant property.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a composite heat insulation material comprises the following raw materials in parts by weight: 10-20 parts of epoxy resin, 20-30 parts of fly ash, 15-20 parts of Portland cement, 6-10 parts of chloroprene rubber, 12-24 parts of phenolic foam, 2-5 parts of fiber, 13-20 parts of glass wool, 9-15 parts of floating bead, 10-20 parts of diluent, 2-4 parts of flame retardant, 0.3-0.7 part of foaming agent, 10-15 parts of curing agent and 0.5-1.0 part of catalyst.
Preferably, the feed comprises the following raw materials in parts by weight: 10 parts of epoxy resin, 20 parts of fly ash, 15 parts of portland cement, 6 parts of chloroprene rubber, 12 parts of phenolic foam, 2 parts of fiber, 13 parts of glass wool, 9 parts of floating bead, 10 parts of diluent, 2 parts of flame retardant, 0.3 part of foaming agent, 10 parts of curing agent and 0.5 part of catalyst.
Preferably, the feed comprises the following raw materials in parts by weight: 15 parts of epoxy resin, 25 parts of fly ash, 18 parts of portland cement, 8 parts of chloroprene rubber, 18 parts of phenolic foam, 3 parts of fiber, 16 parts of glass wool, 12 parts of floating bead, 15 parts of diluent, 3 parts of flame retardant, 0.5 part of foaming agent, 13 parts of curing agent and 0.8 part of catalyst.
Preferably, the feed comprises the following raw materials in parts by weight: 20 parts of epoxy resin, 30 parts of fly ash, 20 parts of portland cement, 10 parts of chloroprene rubber, 24 parts of phenolic foam, 5 parts of fiber, 20 parts of glass wool, 15 parts of floating bead, 20 parts of diluent, 4 parts of flame retardant, 0.7 part of foaming agent, 15 parts of curing agent and 1.0 part of catalyst.
Preferably, the curing agent is one or a mixture of several of novolac resin, linear polyamino polyamide resin, epoxy functional group resin, carboxylic acid functional group resin and amino functional group resin.
Preferably, triphenyl phosphate is adopted as the flame retardant, carbon black or sodium bicarbonate is adopted as the foaming agent, and manganese dioxide particles are adopted as the catalyst.
Preferably, the diluent is toluene, acetone or n-butanol.
Preferably, the epoxy resin is bisphenol A epoxy resin, specifically one or a mixture of E14, E44 and E40.
Preferably, the preparation method of the composite heat-insulating material comprises the following steps:
s1, weighing corresponding raw materials in parts by weight according to the composite heat insulation material;
s2, dissolving epoxy resin into a diluent in proportion, adding a foaming agent, and carrying out electronic stirring to obtain a mixed solution;
s3, adding raw materials such as fly ash, portland cement, chloroprene rubber and phenolic foam into the mixed solution, and mixing and stirring to obtain slurry;
and S4, adding the limit, the glass wool, the floating beads and the flame retardant into the slurry, adding the curing agent and the catalyst, mixing, pouring the mixed slurry into a mold, and curing for 5-8 hours at room temperature to obtain the composite heat-insulating material.
(III) advantageous effects
The invention provides a composite heat-insulating material and a preparation method thereof. The method has the following beneficial effects:
1. according to the composite heat-insulating material and the preparation method thereof provided by the invention, chloroprene rubber is added into raw materials, the chloroprene rubber has the advantages of good heat resistance, good flame retardance and high mechanical strength, phenolic foam is added, the phenolic foam has the advantages of difficult combustion, low smoke, good heat-insulating property, high temperature variation resistance and low cost, glass wool is added, a plurality of fine pores are formed in the glass wool, the performance is good on the aspects of sound absorption, corrosion resistance and chemical stability of Wen Juere, and floating beads are added, so that the floating beads have the advantages of light weight, high strength, wear resistance, heat insulation, high temperature resistance and flame retardance.
2. According to the composite heat-insulating material and the preparation method thereof, the diluent in the raw materials adopts toluene, acetone or n-butyl alcohol, so that the viscosity of the resin is favorably reduced, the further processing is facilitated, the foaming agent in the raw materials adopts carbon black or sodium bicarbonate, carbon dioxide is released during heating, the heat-insulating material is favorably foamed, and the using effect is better.
3. According to the composite heat-insulating material and the preparation method thereof provided by the invention, the inorganic component and the organic component are mixed, and the composite material prepared by matching the components has a very good heat-insulating and flame-retardant effect, and has the characteristics of light weight, fire resistance, no combustion in open fire, no smoke, no toxicity, wide use temperature range, no shrinkage, no embrittlement and the like in a low-temperature environment, so that the use performance of the composite heat-insulating material is more excellent.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
Example 1:
the embodiment of the invention provides a composite heat-insulating material which comprises the following raw materials in parts by weight: 10 parts of epoxy resin, 20 parts of fly ash, 15 parts of portland cement, 6 parts of chloroprene rubber, 12 parts of phenolic foam, 2 parts of fiber, 13 parts of glass wool, 9 parts of floating bead, 10 parts of diluent, 2 parts of flame retardant, 0.3 part of foaming agent, 10 parts of curing agent and 0.5 part of catalyst.
The chloroprene rubber is added into the raw materials, and has the advantages of good heat resistance, good flame retardance and high mechanical strength.
The phenolic foam is added into the raw materials, and has the advantages of flame retardancy, low smoke, good heat insulation, high temperature variation resistance and low cost.
The glass wool is added in the raw materials, and the glass wool has a plurality of fine pores inside and has good performance on the sound absorption, corrosion resistance and chemical stability of the sound-absorbing material Wen Juere.
The floating beads are added in the raw materials, and have the advantages of light weight, high strength, wear resistance, heat preservation, heat insulation, high temperature resistance and flame retardance.
The diluent in the raw materials adopts toluene, acetone or n-butyl alcohol, which is beneficial to reducing the viscosity of the resin and facilitating further processing.
The flame retardant in the raw materials adopts triphenyl phosphate, the triphenyl phosphate can generate a cross-linked solid substance or a carbonization layer with a more stable structure when being heated, and the formation of the carbonization layer can prevent the polymer from further pyrolysis on one hand and prevent the internal thermal decomposition product from entering a gas phase to participate in the combustion process on the other hand.
The foaming agent in the raw materials is carbon black or sodium bicarbonate, and carbon dioxide is released by heating, so that the foaming of the heat-insulating material is facilitated.
A preparation method of a composite heat-insulating material comprises the following steps:
s1, weighing corresponding raw materials in sequence according to the weight parts of the raw materials of the composite heat-insulation material;
s2, dissolving epoxy resin into a diluent in proportion, adding a foaming agent, and carrying out electronic stirring to obtain a mixed solution;
s3, adding raw materials such as fly ash, portland cement, chloroprene rubber and phenolic foam into the mixed solution, and mixing and stirring to obtain slurry;
and S4, adding the limit, the glass wool, the floating beads and the flame retardant into the slurry, adding the curing agent and the catalyst, mixing, pouring the mixed slurry into a mold, and curing for 5-8 hours at room temperature to obtain the composite heat-insulating material.
Example 2:
the embodiment of the invention provides a composite heat-insulating material which comprises the following raw materials in parts by weight: 15 parts of epoxy resin, 25 parts of fly ash, 18 parts of portland cement, 8 parts of chloroprene rubber, 18 parts of phenolic foam, 3 parts of fiber, 16 parts of glass wool, 12 parts of floating bead, 15 parts of diluent, 3 parts of flame retardant, 0.5 part of foaming agent, 13 parts of curing agent and 0.8 part of catalyst.
The chloroprene rubber is added into the raw materials, and has the advantages of good heat resistance, good flame retardance and high mechanical strength.
The phenolic foam is added into the raw materials, and has the advantages of flame retardancy, low smoke, good heat insulation, high temperature variation resistance and low cost.
The glass wool is added in the raw materials, and the glass wool has a plurality of fine pores inside and has good performance on the sound absorption, corrosion resistance and chemical stability of the sound-absorbing material Wen Juere.
The floating beads are added in the raw materials, and have the advantages of light weight, high strength, wear resistance, heat preservation, heat insulation, high temperature resistance and flame retardance.
The diluent in the raw materials adopts toluene, acetone or n-butyl alcohol, which is beneficial to reducing the viscosity of the resin and facilitating further processing.
The flame retardant in the raw materials adopts triphenyl phosphate, triphenyl phosphate can generate a cross-linked solid substance or a carbonization zone with a more stable structure when being heated, and the formation of the carbonization zone can prevent the polymer from further pyrolysis on one hand and prevent the internal thermal decomposition product from entering a gas phase to participate in the combustion process on the other hand.
The foaming agent in the raw materials is carbon black or sodium bicarbonate, and carbon dioxide is released by heating, so that the foaming of the heat-insulating material is facilitated.
A preparation method of a composite heat-insulating material comprises the following steps:
s1, weighing corresponding raw materials in parts by weight according to the composite heat insulation material;
s2, dissolving epoxy resin into a diluent in proportion, adding a foaming agent, and performing electronic stirring to obtain a mixed solution;
s3, adding raw materials such as fly ash, portland cement, chloroprene rubber and phenolic foam into the mixed solution, and mixing and stirring to obtain slurry;
and S4, adding the limit, the glass wool, the floating beads and the flame retardant into the slurry, adding the curing agent and the catalyst, mixing, pouring the mixed slurry into a mold, and curing for 5-8 hours at room temperature to obtain the composite heat-insulating material.
Example 3:
the embodiment of the invention provides a composite heat-insulating material which comprises the following raw materials in parts by weight: 20 parts of epoxy resin, 30 parts of fly ash, 20 parts of portland cement, 10 parts of chloroprene rubber, 24 parts of phenolic foam, 5 parts of fiber, 20 parts of glass wool, 15 parts of floating bead, 20 parts of diluent, 4 parts of flame retardant, 0.7 part of foaming agent, 15 parts of curing agent and 1.0 part of catalyst.
The chloroprene rubber is added into the raw materials, and has the advantages of good heat resistance, good flame retardance and high mechanical strength.
The phenolic foam is added into the raw materials, and has the advantages of flame retardancy, low smoke, good heat insulation, high temperature variation resistance and low cost.
The glass wool is added in the raw materials, and the glass wool has a plurality of fine pores inside and has good performance on the sound absorption, corrosion resistance and chemical stability of Wen Juere.
The floating beads are added in the raw materials, and have the advantages of light weight, high strength, wear resistance, heat preservation, heat insulation, high temperature resistance and flame retardance.
The diluent in the raw materials adopts toluene, acetone or n-butyl alcohol, which is beneficial to reducing the viscosity of the resin and facilitating further processing.
The flame retardant in the raw materials adopts triphenyl phosphate, triphenyl phosphate can generate a cross-linked solid substance or a carbonization zone with a more stable structure when being heated, and the formation of the carbonization zone can prevent the polymer from further pyrolysis on one hand and prevent the internal thermal decomposition product from entering a gas phase to participate in the combustion process on the other hand.
The foaming agent in the raw materials is carbon black or sodium bicarbonate, and carbon dioxide is released by heating, so that the foaming of the heat-insulating material is facilitated.
A preparation method of a composite heat-insulating material comprises the following steps:
s1, weighing corresponding raw materials in parts by weight according to the composite heat insulation material;
s2, dissolving epoxy resin into a diluent in proportion, adding a foaming agent, and carrying out electronic stirring to obtain a mixed solution;
s3, adding raw materials such as fly ash, portland cement, chloroprene rubber and phenolic foam into the mixed solution, and mixing and stirring to obtain slurry;
and S4, adding the limit, the glass wool, the floating beads and the flame retardant into the slurry, adding the curing agent and the catalyst, mixing, pouring the mixed slurry into a mold, and curing for 5-8 hours at room temperature to obtain the composite heat-insulating material.
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 (9)
1. The composite heat-insulating material is characterized by comprising the following raw materials in parts by weight: 10-20 parts of epoxy resin, 20-30 parts of fly ash, 15-20 parts of portland cement, 6-10 parts of chloroprene rubber, 12-24 parts of phenolic foam, 2-5 parts of fiber, 13-20 parts of glass wool, 9-15 parts of floating bead, 10-20 parts of diluent, 2-4 parts of flame retardant, 0.3-0.7 part of foaming agent, 10-15 parts of curing agent and 0.5-1.0 part of catalyst.
2. The composite heat-insulating material as claimed in claim 1, which comprises the following raw materials in parts by weight: 10 parts of epoxy resin, 20 parts of fly ash, 15 parts of portland cement, 6 parts of chloroprene rubber, 12 parts of phenolic foam, 2 parts of fiber, 13 parts of glass wool, 9 parts of floating bead, 10 parts of diluent, 2 parts of flame retardant, 0.3 part of foaming agent, 10 parts of curing agent and 0.5 part of catalyst.
3. The composite heat-insulating material as claimed in claim 1, which comprises the following raw materials in parts by weight: 15 parts of epoxy resin, 25 parts of fly ash, 18 parts of portland cement, 8 parts of chloroprene rubber, 18 parts of phenolic foam, 3 parts of fiber, 16 parts of glass wool, 12 parts of floating bead, 15 parts of diluent, 3 parts of flame retardant, 0.5 part of foaming agent, 13 parts of curing agent and 0.8 part of catalyst.
4. The composite heat-insulating material as claimed in claim 1, which comprises the following raw materials in parts by weight: 20 parts of epoxy resin, 30 parts of fly ash, 20 parts of portland cement, 10 parts of chloroprene rubber, 24 parts of phenolic foam, 5 parts of fiber, 20 parts of glass wool, 15 parts of floating bead, 20 parts of diluent, 4 parts of flame retardant, 0.7 part of foaming agent, 15 parts of curing agent and 1.0 part of catalyst.
5. A composite thermal insulation material according to claim 1, wherein the curing agent is one or a mixture of several of novolac resin, linear polyamino amide resin, epoxy functional group resin, carboxylic acid functional group resin, amino functional group resin.
6. The composite thermal insulation material as claimed in claim 1, wherein triphenyl phosphate is used as the flame retardant, carbon black or sodium bicarbonate is used as the foaming agent, and manganese dioxide particles are used as the catalyst.
7. The composite thermal insulation material as claimed in claim 1, wherein the diluent is toluene, acetone or n-butanol.
8. A composite thermal insulation material according to claim 1, wherein the epoxy resin is bisphenol a epoxy resin, in particular a mixture of one or more of E14, E44 and E40.
9. The method for preparing the composite thermal insulation material according to any one of claims 1 to 8, characterized by comprising the following steps:
s1, weighing corresponding raw materials in sequence according to the weight parts of the raw materials of the composite heat-insulation material;
s2, dissolving epoxy resin into a diluent in proportion, adding a foaming agent, and carrying out electronic stirring to obtain a mixed solution;
s3, adding raw materials such as fly ash, portland cement, chloroprene rubber and phenolic foam into the mixed solution, and mixing and stirring to obtain slurry;
and S4, adding the limit, the glass wool, the floating beads and the flame retardant into the slurry, adding the curing agent and the catalyst, mixing, pouring the mixed slurry into a mold, and curing for 5-8 hours at room temperature to obtain the composite heat-insulating material.
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| CN103044860A (en) * | 2013-01-18 | 2013-04-17 | 南京信息工程大学 | Composite foam heat insulating material and preparation method thereof |
| CN106495614A (en) * | 2016-10-28 | 2017-03-15 | 南京信息工程大学 | A kind of compounding insulating material and preparation method thereof |
| CN107418136A (en) * | 2017-06-22 | 2017-12-01 | 合肥永泰新型建材有限公司 | A kind of composite foam insulation material and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103044860A (en) * | 2013-01-18 | 2013-04-17 | 南京信息工程大学 | Composite foam heat insulating material and preparation method thereof |
| CN106495614A (en) * | 2016-10-28 | 2017-03-15 | 南京信息工程大学 | A kind of compounding insulating material and preparation method thereof |
| CN107418136A (en) * | 2017-06-22 | 2017-12-01 | 合肥永泰新型建材有限公司 | A kind of composite foam insulation material and preparation method thereof |
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Application publication date: 20221111 |