CN116445067A - Bi-component fireproof flame-retardant heat-insulating coating and application thereof in automobile production - Google Patents
Bi-component fireproof flame-retardant heat-insulating coating and application thereof in automobile production Download PDFInfo
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- CN116445067A CN116445067A CN202310447560.0A CN202310447560A CN116445067A CN 116445067 A CN116445067 A CN 116445067A CN 202310447560 A CN202310447560 A CN 202310447560A CN 116445067 A CN116445067 A CN 116445067A
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 97
- 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 92
- 238000000576 coating method Methods 0.000 title claims abstract description 56
- 239000011248 coating agent Substances 0.000 title claims abstract description 53
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 6
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 63
- 230000009970 fire resistant effect Effects 0.000 claims abstract description 54
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 42
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 30
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910001868 water Inorganic materials 0.000 claims abstract description 29
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims abstract description 24
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims abstract description 12
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 12
- SHFGJEQAOUMGJM-UHFFFAOYSA-N dialuminum dipotassium disodium dioxosilane iron(3+) oxocalcium oxomagnesium oxygen(2-) Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Na+].[Na+].[Al+3].[Al+3].[K+].[K+].[Fe+3].[Fe+3].O=[Mg].O=[Ca].O=[Si]=O SHFGJEQAOUMGJM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000010451 perlite Substances 0.000 claims abstract description 12
- 235000019362 perlite Nutrition 0.000 claims abstract description 12
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 8
- 239000011347 resin Substances 0.000 claims abstract description 8
- 229920005989 resin Polymers 0.000 claims abstract description 8
- 239000000047 product Substances 0.000 claims description 24
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 14
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 claims description 14
- 229910001626 barium chloride Inorganic materials 0.000 claims description 14
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 14
- 235000011152 sodium sulphate Nutrition 0.000 claims description 14
- 239000012265 solid product Substances 0.000 claims description 14
- 238000001354 calcination Methods 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 25
- 239000003973 paint Substances 0.000 abstract description 14
- 238000002360 preparation method Methods 0.000 abstract description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 32
- 239000003607 modifier Substances 0.000 description 22
- OCKWAZCWKSMKNC-UHFFFAOYSA-N [3-octadecanoyloxy-2,2-bis(octadecanoyloxymethyl)propyl] octadecanoate Chemical group CCCCCCCCCCCCCCCCCC(=O)OCC(COC(=O)CCCCCCCCCCCCCCCCC)(COC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC OCKWAZCWKSMKNC-UHFFFAOYSA-N 0.000 description 14
- HDMXIELEUKTYFR-UHFFFAOYSA-N bis(2-ethylhexyl) butanedioate;sodium Chemical compound [Na].CCCCC(CC)COC(=O)CCC(=O)OCC(CC)CCCC HDMXIELEUKTYFR-UHFFFAOYSA-N 0.000 description 14
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 13
- 239000002518 antifoaming agent Substances 0.000 description 6
- 239000007822 coupling agent Substances 0.000 description 6
- 239000002562 thickening agent Substances 0.000 description 6
- 239000000080 wetting agent Substances 0.000 description 6
- 239000000839 emulsion Substances 0.000 description 4
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- RWNUSVWFHDHRCJ-UHFFFAOYSA-N 1-butoxypropan-2-ol Chemical group CCCCOCC(C)O RWNUSVWFHDHRCJ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910021502 aluminium hydroxide Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Fireproofing Substances (AREA)
Abstract
The invention relates to the technical field of paint preparation, and particularly discloses a bi-component fireproof flame-retardant heat-insulating paint and application thereof in automobile production. The bi-component fireproof flame-retardant heat-insulating coating comprises a component A and a component B; the component A comprises aqueous hydroxyl resin, an auxiliary agent and water; the component B is a curing agent; the component A also comprises a fire-resistant flame-retardant heat-insulating agent; the fire-resistant flame-retardant heat-insulating agent comprises aluminum hydroxide, antimonous oxide, perlite and kaolin. According to the invention, the fire-resistant flame-retardant heat-insulating agent consisting of aluminum hydroxide, antimonous oxide, perlite and kaolin is added into the double-component fire-resistant flame-retardant heat-insulating coating, so that the double-component fire-resistant flame-retardant heat-insulating coating has a certain fire-resistant flame-retardant and heat-insulating effect.
Description
Technical Field
The invention relates to the technical field of paint preparation, in particular to a bi-component fireproof flame-retardant heat-insulating paint and application thereof in automobile production.
Background
The automobile paint is paint coated on various automobile bodies and parts of cars and the like; it includes new automotive coatings and automotive repair coatings.
Chinese patent 201010548579.7 provides a water-based two-component acrylic polyurethane automobile paint and a preparation method thereof; the adhesive is prepared from a component A and a component B, wherein the component A is prepared by adding a formula amount of aqueous hydroxyl resin, a wetting agent, a defoaming agent, a thickening agent, a coupling agent and a film forming auxiliary agent into deionized water and dispersing for 15 minutes; the component B is polyisocyanate curing agent, the component B is weighed according to the formula amount, and is slowly added into the component A in a dispersed state, and the dispersion is continued for 5 minutes, thus obtaining the polyurethane adhesive. The water-based double-component automobile paint prepared by the method maintains the hardness, medium resistance and salt spray resistance of the original paint film, greatly reduces the VOC content, is widely applied to the water-based automobile paint industry, and has great industrial application value and market prospect.
However, the inventor finds that the water-based two-component acrylic polyurethane automobile paint has no fireproof flame-retardant and heat-insulating properties in practical application; further improvements are needed.
Disclosure of Invention
In order to overcome at least one technical problem in the prior art, the invention provides a bi-component fireproof flame-retardant heat-insulating coating and a preparation method thereof.
The technical scheme for solving the technical problems is as follows:
a bi-component fire-resistant flame-retardant heat-insulating coating comprises a component A and a component B; the component A comprises aqueous hydroxyl resin, an auxiliary agent and water; the component B is a curing agent; the component A also comprises a fire-resistant flame-retardant heat-insulating agent;
the fire-resistant flame-retardant heat-insulating agent comprises aluminum hydroxide, antimonous oxide, perlite and kaolin.
The inventor adds a fire-resistant flame-retardant heat-insulating agent consisting of aluminum hydroxide, antimonous oxide, perlite and kaolin into the double-component fire-resistant flame-retardant heat-insulating coating, so that the double-component fire-resistant flame-retardant heat-insulating coating has a certain fire-resistant flame-retardant effect and a certain heat-insulating effect.
Preferably, the weight ratio of the aluminum hydroxide, the antimonous oxide, the perlite and the kaolin in the fireproof flame-retardant heat-insulating agent is 4-6:2-4:8-10:8-12.
Most preferably, the weight ratio of aluminum hydroxide, antimony trioxide, perlite and kaolin in the fire-resistant flame-retardant heat-insulating agent is 5:3:9:10.
Preferably, the kaolin in the fire-resistant flame-retardant heat-insulating agent is modified kaolin.
Preferably, the modified kaolin is prepared by the following method:
(1) Adding kaolin into water, then adding barium chloride and sodium sulfate, ultrasonically stirring for 1-2 h, and filtering to obtain a solid product;
(2) Calcining the solid product at 1600-1700 ℃ for 2-4 h, and calcining and receiving to obtain the calcined product, namely the modified kaolin.
The inventor has found in a great deal of research that, compared with unmodified kaolin, the modified kaolin obtained by modifying the kaolin in the fireproof flame-retardant heat-insulating agent by adopting the method can obviously improve the fireproof flame-retardant effect and the heat-insulating effect of the two-component fireproof flame-retardant heat-insulating coating.
Further preferably, the weight ratio of the kaolin, the barium chloride, the sodium sulfate and the water in the step (1) is 20-30:3-5:2.5-3.5:150-250;
most preferably, the weight ratio of kaolin, barium chloride, sodium sulfate and water in step (1) is 25:4:3:200.
Preferably, the solid product is calcined at 1680 ℃ for 3 hours in step (2).
Further preferably, the modified kaolin further comprises step (3); the step (3) is as follows:
(3) Adding the calcined product into ethanol, adding a modifier, stirring for 1-2 h, and evaporating the ethanol to obtain the modified kaolin.
Preferably, the ethanol refers to ethanol water solution with the volume fraction of 50% -95%;
most preferably, the ethanol refers to an aqueous ethanol solution with a volume fraction of 70%.
Further preferably, the modifier is pentaerythritol tetrastearate or sodium bis (2-ethylhexyl) succinate sulfonate.
The inventors have further found in a great deal of research that the fire-retarding and heat-insulating effects of the two-component fire-retarding and heat-insulating coating can be further improved by adding the calcined product to the modified kaolin obtained by further treating the calcined product with the modifier.
Further preferably, the weight ratio of the calcined product to the modifier to the ethanol is 10-15:1-3:100;
most preferably, the weight ratio of calcined product, modifier and ethanol is 13:2:100.
Further preferably, the modifier consists of pentaerythritol tetrastearate and sodium bis (2-ethylhexyl) succinate sulfonate.
The inventors further found in the study that modified kaolin obtained by further treating the calcined product with a modifier of pentaerythritol tetrastearate or sodium bis (2-ethylhexyl) succinate sulfonate, although the fire-retarding and heat-insulating effects of the two-component fire-retarding and heat-insulating coating can be further improved; however, the degree of improvement is not great; the inventors have surprisingly found in the study that modified kaolin obtained by further treating the calcined product with a modifier consisting of pentaerythritol tetrastearate and sodium bis (2-ethylhexyl) succinate sulfonate can further greatly improve the fire-retarding and heat-insulating effects of the two-component fire-retarding and heat-insulating coating; the improvement degree of the fire-resistant flame-retardant effect and the heat-insulating effect of the two-component fire-resistant flame-retardant heat-insulating coating is far higher than that of modified kaolin obtained by further treating the calcined product with a single modifier pentaerythritol tetrastearate or a single sodium bis (2-ethylhexyl) succinate sulfonate.
Further preferably, the weight ratio of pentaerythritol tetrastearate to sodium bis (2-ethylhexyl) succinate sulfonate is 1-2:1-2.
Most preferably, the weight ratio of pentaerythritol tetrastearate to sodium bis (2-ethylhexyl) succinate sulfonate is 1:1.
Preferably, the water-based hydroxyl resin, the auxiliary agent, the fire-resistant flame-retardant heat-insulating agent and the water in the component A are respectively in parts by weight:
80-100 parts of aqueous hydroxyl resin; 1-10 parts of an auxiliary agent; 30-50 parts of fire-resistant flame-retardant heat-insulating agent; 10-20 parts of water.
Preferably, the auxiliary agent consists of a wetting agent, a defoaming agent, a thickening agent, a coupling agent and a film forming agent;
wherein the weight ratio of the wetting agent, the defoaming agent, the thickening agent, the coupling agent and the film forming agent is 1:1:1:4.
Preferably, the weight ratio of the component A to the component B is 3-10:1.
The invention also provides application of the bi-component fireproof flame-retardant heat-insulating coating in automobile production.
The beneficial effects are that: the invention provides a bi-component fire-resistant flame-retardant heat-insulating coating prepared by a brand new method; according to the invention, the fire-resistant flame-retardant heat-insulating agent consisting of aluminum hydroxide, antimonous oxide, perlite and kaolin is added into the double-component fire-resistant flame-retardant heat-insulating coating, so that the double-component fire-retardant heat-insulating coating has a certain fire-resistant flame-retardant effect and a certain heat-insulating effect; in addition, compared with the unmodified kaolin, the modified kaolin obtained by modifying the fire-resistant flame-retardant heat-insulating agent by adopting the method can remarkably improve the fire-resistant flame-retardant effect and the heat-insulating effect of the two-component fire-resistant flame-retardant heat-insulating coating.
Detailed Description
The present invention is further explained below with reference to specific examples, which are not intended to limit the present invention in any way.
The aqueous hydroxyacrylic emulsion used in the examples below was the aqueous hydroxyacrylic emulsion under the brand name LB-6019 of Lanbo. The remaining unidentified starting materials are conventional starting materials which can be purchased by a person skilled in the art via conventional purchasing routes or prepared by conventional methods.
Example 1 preparation of two-component flame retardant heat insulating coating
The bi-component fireproof flame-retardant heat-insulating coating consists of a component A and a component B in a weight ratio of 5:1;
the component B is XP2655 curing agent;
the component A comprises the following components in parts by weight: 90 parts of aqueous hydroxy acrylic emulsion; 8 parts of auxiliary agent; 40 parts of fire-resistant flame-retardant heat-insulating agent; 15 parts of water;
the auxiliary agent consists of a wetting agent, a defoaming agent, a thickening agent, a coupling agent and a film forming agent in a weight ratio of 1:1:1:4; the wetting agent is a wetting agent BYK-346; the defoaming agent is a defoaming agent BYK-020; the thickener is thickener SN-612; the coupling agent is coupling agent Z-6011; the film forming agent is propylene glycol butyl ether;
the fireproof flame-retardant heat-insulating agent is formed by mixing aluminum hydroxide, antimonous oxide, perlite and kaolin in a weight ratio of 5:3:9:10;
the preparation method of the two-component fireproof flame-retardant heat-insulating coating comprises the following steps: mixing the aqueous hydroxy acrylic emulsion, the auxiliary agent, the fire-resistant flame-retardant heat-insulating agent and water, and uniformly dispersing to obtain a component A; and then adding the component B into the component A, and uniformly dispersing to obtain the bi-component fireproof flame-retardant heat-insulating coating.
Example 2 preparation of two-component flame retardant Heat insulation coating
Example 2 differs from example 1 in that the fire-resistant flame-retardant heat-insulating agent employed in example 2 is a modified fire-resistant flame-retardant heat-insulating agent; the remainder were the same as in example 1;
the modified kaolin is prepared by the following steps:
(1) Adding kaolin into water, then adding barium chloride and sodium sulfate, ultrasonically stirring for 1.5h, and filtering to obtain a solid product; wherein, the weight ratio of kaolin, barium chloride, sodium sulfate and water is 25:4:3:200;
(2) Calcining the solid product at 1680 ℃ for 3 hours, and calcining and receiving to obtain a calcined product, namely the modified kaolin.
Example 3 preparation of two-component flame retardant heat insulating coating
Example 3 differs from example 1 in that the fire-resistant flame-retardant heat-insulating agent employed in example 3 is a modified fire-resistant flame-retardant heat-insulating agent; the remainder were the same as in example 1;
the modified kaolin is prepared by the following steps:
(1) Adding kaolin into water, then adding barium chloride and sodium sulfate, ultrasonically stirring for 1.5h, and filtering to obtain a solid product; wherein, the weight ratio of kaolin, barium chloride, sodium sulfate and water is 25:4:3:200;
(2) Calcining the solid product at 1680 ℃ for 3 hours, and calcining and receiving to obtain a calcined product;
(3) Adding the calcined product into ethanol (70% ethanol water solution by volume fraction), adding a modifier, stirring for 1.5h, and evaporating ethanol to obtain the modified kaolin;
the weight ratio of the calcined product to the modifier to the ethanol in the step (3) is 13:2:100; the modifier is pentaerythritol tetrastearate.
Example 4 preparation of two-component flame retardant Heat insulation coating
Example 4 differs from example 1 in that the fire-resistant flame-retardant heat-insulating agent employed in example 4 is a modified fire-resistant flame-retardant heat-insulating agent; the remainder were the same as in example 1;
the modified kaolin is prepared by the following steps:
(1) Adding kaolin into water, then adding barium chloride and sodium sulfate, ultrasonically stirring for 1.5h, and filtering to obtain a solid product; wherein, the weight ratio of kaolin, barium chloride, sodium sulfate and water is 25:4:3:200;
(2) Calcining the solid product at 1680 ℃ for 3 hours, and calcining and receiving to obtain a calcined product;
(3) Adding the calcined product into ethanol (70% ethanol water solution by volume fraction), adding a modifier, stirring for 1.5h, and evaporating ethanol to obtain the modified kaolin;
the weight ratio of the calcined product to the modifier to the ethanol in the step (3) is 13:2:100; the modifier is sodium bis (2-ethylhexyl) succinate sulfonate.
Example 5 preparation of two-component flame retardant heat insulating coating
Example 5 differs from example 1 in that the fire-resistant flame-retardant heat-insulating agent employed in example 5 is a modified fire-resistant flame-retardant heat-insulating agent; the remainder were the same as in example 1;
the modified kaolin is prepared by the following steps:
(1) Adding kaolin into water, then adding barium chloride and sodium sulfate, ultrasonically stirring for 1.5h, and filtering to obtain a solid product; wherein, the weight ratio of kaolin, barium chloride, sodium sulfate and water is 25:4:3:200;
(2) Calcining the solid product at 1680 ℃ for 3 hours, and calcining and receiving to obtain a calcined product;
(3) Adding the calcined product into ethanol (70% ethanol water solution by volume fraction), adding a modifier, stirring for 1.5h, and evaporating ethanol to obtain the modified kaolin;
the weight ratio of the calcined product to the modifier to the ethanol in the step (3) is 13:2:100; the modifier consists of pentaerythritol tetrastearate and sodium bis (2-ethylhexyl) succinate sulfonate in a weight ratio of 1:1.
Coating the two-component fireproof flame-retardant heat-insulating paint prepared in the examples 1 to 5 on a steel plate, wherein the thickness of the coating is 150 micrometers; testing the fire resistance limit and the heat conductivity coefficient; the test results are shown in Table 1;
TABLE 1 test results of the Performance of the two-component flame retardant and heat insulating coating
| Fire resistance limit | Coefficient of thermal conductivity | |
| Example 1 two-component flame retardant heat insulating coating | 61min | 0.068W/(m·K) |
| Example 2 two-component flame retardant heat insulating coating | 75min | 0.051W/(m·K) |
| Example 3 two-component fire-retardant Heat-insulating coating | 84min | 0.045W/(m·K) |
| Example 4 two-component fire-retardant Heat-insulating coating | 86min | 0.044W/(m·K) |
| Example 5 two-component fire-retardant Heat-insulating coating | 111min | 0.028W/(m·K) |
As can be seen from the fire-proof limit time and the heat conductivity coefficient of the example 1 in Table 1, the invention can make the two-component fire-proof heat-insulating paint have a certain fire-proof and heat-insulating effect by adding fire-proof heat-insulating agent composed of aluminium hydroxide, antimonous oxide, perlite and kaolin into the two-component fire-proof heat-insulating paint.
As can be seen from the experimental data in table 1, the two-component fire-resistant flame-retardant heat-insulating coating prepared in example 2 has a fire-resistant limit time significantly higher than that of example 1 and a heat conductivity coefficient significantly lower than that of example 1; this illustrates: compared with the modified kaolin obtained by modifying the kaolin by the method, the modified kaolin obtained by adding the modified kaolin into the fireproof flame-retardant heat-insulating coating can remarkably improve the fireproof flame-retardant effect and the heat-insulating effect of the double-component fireproof flame-retardant heat-insulating coating.
As can be seen from the experimental data in Table 1, the two-component fireproof flame-retardant heat-insulating coatings prepared in examples 3 and 4 have a fireproof limit time which is further higher than that of example 2, and a heat conductivity coefficient which is further lower than that of example 2; this illustrates: in the preparation method of the modified kaolin, the modified kaolin obtained by further treating the calcined product with the modifier pentaerythritol tetrastearate or sodium bis (2-ethylhexyl) succinate can further improve the fireproof flame retardant effect and the heat insulation effect of the two-component fireproof flame retardant heat insulation coating compared with the modified kaolin obtained by not treating with the pentaerythritol tetrastearate or the sodium bis (2-ethylhexyl) succinate sulfonate.
As can be seen from the experimental data in Table 1, the two-component fireproof flame-retardant heat-insulating coating prepared in example 4 has a fire-resistant limit time which is substantially higher than that of example 2 and is substantially higher than that of examples 3 and 4; the thermal conductivity is significantly lower than that of example 2, and also significantly lower than that of examples 3 and 4; this illustrates: the modified kaolin obtained by further treating the calcined product with a modifier pentaerythritol tetrastearate or sodium bis (2-ethylhexyl) succinate sulfonate can further improve the fireproof flame-retardant effect and the heat-insulating effect of the two-component fireproof flame-retardant heat-insulating coating; however, the degree of improvement is not great; the modified kaolin obtained by further treating the calcined product by a modifier consisting of pentaerythritol tetrastearate and sodium bis (2-ethylhexyl) succinate sulfonate can further greatly improve the fireproof flame-retardant effect and the heat-insulating effect of the two-component fireproof flame-retardant heat-insulating coating; the improvement degree of the fire-resistant flame-retardant effect and the heat-insulating effect of the two-component fire-resistant flame-retardant heat-insulating coating is far higher than that of modified kaolin obtained by further treating the calcined product with a single modifier pentaerythritol tetrastearate or a single sodium bis (2-ethylhexyl) succinate sulfonate.
Claims (10)
1. A bi-component fire-resistant flame-retardant heat-insulating coating comprises a component A and a component B; the component A comprises aqueous hydroxyl resin, an auxiliary agent and water; the component B is a curing agent; the flame-retardant heat-insulating material is characterized in that the component A also comprises a flame-retardant heat-insulating agent;
the fire-resistant flame-retardant heat-insulating agent comprises aluminum hydroxide, antimonous oxide, perlite and kaolin.
2. The two-component fire-resistant flame-retardant heat-insulating coating according to claim 1, wherein the weight ratio of aluminum hydroxide, antimony trioxide, perlite and kaolin in the fire-resistant flame-retardant heat-insulating agent is 4-6:2-4:8-10:8-12.
3. The two-component fire-resistant flame-retardant heat-insulating coating according to claim 2, wherein the weight ratio of aluminum hydroxide, antimony trioxide, perlite and kaolin in the fire-resistant flame-retardant heat-insulating agent is 5:3:9:10.
4. The two-component fire-resistant flame-retardant heat-insulating coating according to claim 3, wherein the kaolin in the fire-resistant flame-retardant heat-insulating agent is modified kaolin.
5. The two-component fire-resistant flame-retardant heat-insulating coating according to claim 4, wherein the modified kaolin is prepared by the following method:
(1) Adding kaolin into water, then adding barium chloride and sodium sulfate, ultrasonically stirring for 1-2 h, and filtering to obtain a solid product;
(2) Calcining the solid product at 1600-1700 ℃ for 2-4 h, and calcining and receiving to obtain the calcined product, namely the modified kaolin.
6. The two-component fire-resistant flame-retardant heat-insulating coating according to claim 5, wherein the weight ratio of kaolin, barium chloride, sodium sulfate and water in the step (1) is 20-30:3-5:2.5-3.5:150-250;
most preferably, the weight ratio of kaolin, barium chloride, sodium sulfate and water in step (1) is 25:4:3:200.
7. The two-part fire-retardant heat-insulating coating according to claim 5, wherein the solid product is calcined at 1680 ℃ for 3 hours in step (2).
8. The two-component fireproof flame-retardant heat-insulating coating according to claim 1, wherein the water-based hydroxyl resin, the auxiliary agent, the fireproof flame-retardant heat-insulating agent and the water in the component A are respectively in parts by weight:
80-100 parts of aqueous hydroxyl resin; 1-10 parts of an auxiliary agent; 30-50 parts of fire-resistant flame-retardant heat-insulating agent; 10-20 parts of water.
9. The two-component fire-resistant flame-retardant heat-insulating coating according to claim 1, wherein the weight ratio of the component A to the component B is 3-10:1.
10. Use of the two-component fire-resistant flame-retardant heat-insulating coating according to any one of claims 1 to 9 in automotive production.
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