CN105062303A - Heat-resistant flame-retardant powder coating - Google Patents
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Abstract
The invention discloses heat-resistant flame-retardant powder coating. The coating comprises the following raw materials: epoxy resin, carboxyl-terminated unsaturated polyester resin, nitrogen-containing phenolic resin, polyamide resin, thermoplastic styrene-butadiene rubber, ammonium polyphosphate, pentaerythritol, melamine, expansible graphite, nano-zirconia, titanium dioxide, talcum powder, diphenyl silanediol, 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, octadecendioic acid, tetrahydro-1,3,4,6-tetrakis(methoxymethyl)imidazo[4,5-d]imidazole-2,5(1H,3H)-dione, benzoyl peroxide and auxiliaries. The heat-resistant flame-retardant powder coating has good heat resistance and excellent flame retardant performance, can be used for coating surfaces of kitchen ware, instrument shells, display stands, electromechanical equipment, automobile components and parts and the like, and has the advantages of good comprehensive performance and long service life.
Description
Technical field
The present invention relates to technical field of coatings, particularly relate to a kind of heat-proof combustion-resistant powder coating.
Background technology
Powder coating is that one does not contain solvent, and forms the new coating of film after carrying out construction application with powder morphology.Compared with traditional solvent based coating, the discharge of powder coating organic solvent volatile matter (VOC) when solidifying is almost nil, avoids the pollution to environment; Meanwhile, it is high that powder coating has utilization ratio, and coating property is good and be convenient to realize the advantages such as automation paint, obtains in recent years and develops faster.
Although the kind of powder coating is varied at present, along with the development of society, the performance of people to coating is had higher requirement, its performance of existing powder coating can not meet the requirement of society, and such as, thermotolerance is not good enough, flame retardant properties is bad, needs to carry out modification.
Summary of the invention
Based on the technical problem that background technology exists, the present invention proposes a kind of heat-proof combustion-resistant powder coating, its good heat resistance, excellent fireproof performance, can be used for the application on the surfaces such as kitchen kitchenware, instrument shell, display rack, electromechanical equipment, automobile component, and good combination property, long service life.
A kind of heat-proof combustion-resistant powder coating that the present invention proposes, its raw material comprises following component by weight: epoxy resin 30-50 part, end carboxyl unsaturated polyester resin 20-30 part, Nitrogen-containing Phenolic Resins 5-15 part, polyamide resin 10-25 part, thermoplastic styrene butadiene rubber 3-10 part, ammonium polyphosphate 3-10 part, tetramethylolmethane 2-10 part, trimeric cyanamide 1-5 part, expansible black lead 4-12 part, nano zircite 2-15 part, titanium dioxide 1-5 part, talcum powder 2-8 part, Diphenylsilanediol 2-5 part, 9, 10-dihydro-9-oxy is mixed-10-phospho hetero phenanthrene-10-oxide compound 2-5 part, octadecene diacid 1-4 part, tetramethoxymethylglycoluril 0.4-2 part, benzoyl peroxide 0.1-0.5 part, auxiliary agent 1-4 part.
In a particular embodiment, a kind of heat-proof combustion-resistant powder coating that the present invention proposes, in its raw material, the weight part of epoxy resin can be 30,32,34,35,38,39,42,45,46,48,49,49.3,50 parts; The weight part of end carboxyl unsaturated polyester resin can be 20,23,25,26,28,29,29.3,30 parts; The weight part of Nitrogen-containing Phenolic Resins can be 5,6,7,8,8.6,9,9.3,10,10.6,11,11.3,12,12.6,13,13.4,14,14.6,15 parts; The weight part of polyamide resin can be 10,12,13,15,16,16.3,17,18,18.6,19,19.3,21,22,22.3,23,23.4,24,24.6,25 parts; The weight part of thermoplastic styrene butadiene rubber can be 3,4,5,6,6.3,7,7.8,8,8.6,9,9.3,10 parts; The weight part of ammonium polyphosphate can be 3,4,5,5.6,6,6.3,7,7.8,8,8.6,9,9.4,10 parts; The weight part of tetramethylolmethane can be 2,3,4,5,5.6,6,6.3,7,7.6,8,8.5,9,9.4,10 parts; The weight part of trimeric cyanamide can be 1,1.2,1.8,2,2.3,3,3.4,3.8,4,4.5,5 part; The weight part of expansible black lead can be 4,5,6,6.3,7,7.5,8,8.6,9,9.3,10,11,11.6,12 parts; The weight part of nano zircite can be 2,3,4,5,5.6,6.3,7,7.8,8,8.6,9,9.3,10,10.2,11,11.3,12,12.6,13,13.4,14,14.6,15 parts; The weight part of titanium dioxide can be 1,1.2,1.8,2,2.3,2.8,3,3.4,3.8,4,4.5,5 part; Talcous weight part can be 2,2.3,2.8,3,3.4,4,4.5,5,5.6,6,6.3,7,7.4,8 parts; The weight part of Diphenylsilanediol can be 2,2.3,2.8,3,3.4,3.8,4,4.2,4.6,5 parts; The weight part of 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide can be 2,2.3,2.8,3,3.4,3.8,4,4.2,4.8,5 parts; The weight part of octadecene diacid can be 1,1.2,1.8,2,2.3,2.8,3,3.4,3.7,4 part; The weight part of tetramethoxymethylglycoluril can be 0.4,0.5,0.6,0.85,0.9,1,1.2,1.5,1.8,1.94,2 part; The weight part of benzoyl peroxide can be 0.1,0.23,0.3,0.34,0.4,0.42,0.48,0.5 part; The weight part of auxiliary agent can be 1,1.2,1.8,2,2.3,2.7,3,3.4,3.8,4 part.
Preferably, its raw material comprises following component by weight: epoxy resin 40-46 part, end carboxyl unsaturated polyester resin 23-28 part, Nitrogen-containing Phenolic Resins 8-12 part, polyamide resin 17-20 part, thermoplastic styrene butadiene rubber 6-9 part, ammonium polyphosphate 6-8 part, tetramethylolmethane 5-8 part, trimeric cyanamide 3-4.5 part, expansible black lead 8-10 part, nano zircite 7-10 part, titanium dioxide 3-4.5 part, talcum powder 5-7 part, Diphenylsilanediol 3-4.5 part, 9, 10-dihydro-9-oxy is mixed-10-phospho hetero phenanthrene-10-oxide compound 3-4 part, octadecene diacid 3-3.4 part, tetramethoxymethylglycoluril 1.1-1.6 part, benzoyl peroxide 0.35-0.4 part, auxiliary agent 2-3 part.
Preferably, its raw material comprises following component by weight: epoxy resin 44 parts, end carboxyl unsaturated polyester resin 25 parts, Nitrogen-containing Phenolic Resins 10 parts, polyamide resin 18 parts, thermoplastic styrene butadiene rubber 7 parts, ammonium polyphosphate 6.5 parts, tetramethylolmethane 7 parts, trimeric cyanamide 4.2 parts, expansible black lead 9 parts, nano zircite 7.9 parts, titanium dioxide 4.2 parts, talcum powder 6.3 parts, Diphenylsilanediol 4.2 parts, 9, 10-dihydro-9-oxy is mixed-10-phospho hetero phenanthrene-10-oxide compound 3.6 parts, octadecene diacid 3.2 parts, tetramethoxymethylglycoluril 1.5 parts, benzoyl peroxide 0.38 part, auxiliary agent 2.5 parts.
Preferably, described epoxy resin is modified epoxy, described modified epoxy is prepared according to following technique: by weight by 20-35 part 1,1 '-union-2-naphthol, 10-25 part epoxy chloropropane and 1-3 part Tetrabutyl amonium bromide add in reaction vessel, be warming up to 85-100 DEG C of reaction 2-5h, then 30-50 part toluene is added and 10-20 part massfraction is the aqueous sodium hydroxide solution of 5-15%, at 70-75 DEG C, react 0.5-1.5h, after reaction terminates, obtain described modified epoxy through washing, separation, distillation, drying; In the preparation process of modified epoxy, have selected 1,1 '-union-2-naphthol and epoxy chloropropane react, by epoxy addition addition reaction, both are combined as a whole, the naphthalene nucleus of rigidity is introduced in epoxy main chains, make modified epoxy in system, be easy to tightly packed, the rotation of molecule is restricted, and improves the thermotolerance of system.
Preferably, described epoxy resin is modified epoxy, described modified epoxy is prepared according to following technique: by weight by 28-32 part 1,1 '-union-2-naphthol, 16-20 part epoxy chloropropane and 1.8-2.3 part Tetrabutyl amonium bromide add in reaction vessel, be warming up to 90-95 DEG C of reaction 3-4.5h, then 40-45 part toluene is added and 15-20 part massfraction is the aqueous sodium hydroxide solution of 10-12%, at 72-75 DEG C, react 1-1.3h, after reaction terminates, obtain described modified epoxy through washing, separation, distillation, drying.
Preferably, described epoxy resin is modified epoxy, described modified epoxy is prepared according to following technique: by weight by 30 part 1,1 '-union-2-naphthol, 17 parts of epoxy chloropropane and 2.1 parts of Tetrabutyl amonium bromides add in reaction vessel, be warming up to 93 DEG C of reaction 4.2h, then add 43 parts of toluene and 20 parts of massfractions are the aqueous sodium hydroxide solution of 11%, at 73 DEG C, react 1.2h, after reaction terminates through washing, be separated, distillation, drying obtain described modified epoxy.
Preferably, the median size of described nano zircite is 5-20nm.
Preferably, described auxiliary agent is the combination of zinc naphthenate, acrylate flow agent, silicone antifoam agent, and the weight ratio of zinc naphthenate, acrylate flow agent, silicone antifoam agent is 5-12:1-5:2-5.
The powder coating of heat-proof combustion-resistant described in the present invention can powder coating preparation technology conveniently be prepared from.
In the present invention, have selected epoxy resin is main filmogen, and cooperation with the addition of end carboxyl unsaturated polyester, gives erosion resistance and the water tolerance of film excellence, Nitrogen-containing Phenolic Resins adds in system, can be cured system, greatly strengthen the cross-linking density of system, improve the electrical insulating property of film, reduce the coefficient of thermal expansion of film, and owing to adding nitrogen element, improve the flame retardant properties of film, and reduce cost, improve the mechanical property of film, mechanical property, thermoplastic styrene butadiene rubber joins in system, can form cross-linked network the auxiliary lower of benzoyl peroxide, increases the cross-linking density of coating, further improve erosion resistance and the water tolerance of coating while raising coating toughness, ammonium polyphosphate, tetramethylolmethane, trimeric cyanamide, expansible black lead join in system, coordinate with nano zircite, can play heat insulation and effect that is that prevent thermooxidizing from decomposing, give thermotolerance and the flame retardant resistance of film excellence, containing hydroxyl, phenyl and silicon in Diphenylsilanediol molecule, the solidification tool of hydroxyl wherein to system has certain effect, the existence of phenyl improves the rigidity of system, give physical strength and the thermotolerance of film excellence, existence due to silicon reduces the internal stress of system, adds toughness and the high thermal resistance of film, 9, 10-dihydro-9-oxy is mixed the rigid structure containing aromatic nucleus in-10-phospho hetero phenanthrene-10-oxide molecule, join in system and can interact with octadecene diacid, both performances are combined as a whole, to join in system good dispersity in system, on the one hand, due to the existence of rigid chain segment, add the reactive force between molecule, increase the density of molecular chain, inhibit the motion of molecular chain under high temperature action, improve the second-order transition temperature of system, give the thermotolerance of film excellence, on the one hand, with tetramethoxymethylglycoluril, benzoyl peroxide, Nitrogen-containing Phenolic Resins, polyamide resin coordinates as solidifying agent, improves curing speed and the degree of cure of system, on the other hand, with the Nitrogen-containing Phenolic Resins in system, ammonium polyphosphate, tetramethylolmethane, trimeric cyanamide, expansible black lead, nano zircite, Diphenylsilanediol cooperation constitutes flame-retardant system more than, can split the carbon dioxide off on the one hand in thermal histories, ammonia, the gas such as nitrogen and water vapour, the density reducing oxygen accelerates the loss of heat simultaneously, can form protective layer on the one hand, play heat insulation at matrix surface, oxygen barrier, press down the effect of cigarette, prevent inner further decomposition, improve the flame retardant resistance of coating.
Carry out Performance Detection to the film after heat-proof combustion-resistant powder coating solidification of the present invention, detected result is as shown in the table:
| Test item | Technical indicator |
| Outward appearance | Smooth, smooth, bubble-free |
| Shock-resistance (weighted-drop) | By 50kg.cm (4.9Nm) |
| Drawing test | ＞6mm |
| Penetration hardness | Pass through 5kg |
| Pliability test (tap web axle) | Pass through 2mm |
| Cross Hatch sticking power | 100% attachment |
| Surface hardness | 1-2H |
| Salt-fog test | Pass through 1000h |
| Wet fastness | Pass through 1000h |
| Water immersion test | Pass through 400h |
| Acid resistance (5%HCl) | Pass through 300h |
| Alkali resistance (5%NaOH) | Pass through 300h |
| Petrol-resistance (120# gasoline) | Pass through 300h |
| Oxygen index | 30-36 |
Embodiment
Below, by specific embodiment, technical scheme of the present invention is described in detail.
Embodiment 1
A kind of heat-proof combustion-resistant powder coating that the present invention proposes, its raw material comprises following component by weight: epoxy resin 30 parts, end carboxyl unsaturated polyester resin 30 parts, Nitrogen-containing Phenolic Resins 5 parts, polyamide resin 25 parts, thermoplastic styrene butadiene rubber 3 parts, ammonium polyphosphate 10 parts, tetramethylolmethane 2 parts, trimeric cyanamide 5 parts, expansible black lead 4 parts, nano zircite 15 parts, titanium dioxide 1 part, talcum powder 8 parts, Diphenylsilanediol 2 parts, 9, 10-dihydro-9-oxy is mixed-10-phospho hetero phenanthrene-10-oxide compound 5 parts, octadecene diacid 1 part, tetramethoxymethylglycoluril 2 parts, benzoyl peroxide 0.1 part, auxiliary agent 1 part,
Wherein, described epoxy resin is modified epoxy, described modified epoxy is prepared according to following technique: by weight by 28 part 1,1 '-union-2-naphthol, 20 parts of epoxy chloropropane and 1.8 parts of Tetrabutyl amonium bromides add in reaction vessel, be warming up to 95 DEG C of reaction 3h, then add 45 parts of toluene and 15 parts of massfractions are the aqueous sodium hydroxide solution of 12%, at 72 DEG C, react 1.3h, after reaction terminates through washing, be separated, distillation, drying obtain described modified epoxy.
Embodiment 2
A kind of heat-proof combustion-resistant powder coating that the present invention proposes, its raw material comprises following component by weight: epoxy resin 50 parts, end carboxyl unsaturated polyester resin 20 parts, Nitrogen-containing Phenolic Resins 15 parts, polyamide resin 10 parts, thermoplastic styrene butadiene rubber 10 parts, ammonium polyphosphate 3 parts, tetramethylolmethane 10 parts, trimeric cyanamide 1 part, expansible black lead 12 parts, nano zircite 2 parts, titanium dioxide 5 parts, talcum powder 2 parts, Diphenylsilanediol 5 parts, 9, 10-dihydro-9-oxy is mixed-10-phospho hetero phenanthrene-10-oxide compound 2 parts, octadecene diacid 4 parts, tetramethoxymethylglycoluril 0.4 part, benzoyl peroxide 0.5 part, auxiliary agent 4 parts,
Wherein, described auxiliary agent is the combination of zinc naphthenate, acrylate flow agent, silicone antifoam agent, and the weight ratio of zinc naphthenate, acrylate flow agent, silicone antifoam agent is 5:5:2; Described epoxy resin is modified epoxy, described modified epoxy is prepared according to following technique: by weight by 32 part 1,1 '-union-2-naphthol, 16 parts of epoxy chloropropane and 2.3 parts of Tetrabutyl amonium bromides add in reaction vessel, be warming up to 90 DEG C of reaction 4.5h, then 40 parts of toluene are added and 20 parts of massfractions are the aqueous sodium hydroxide solution of 10%, at 75 DEG C, react 1h, after reaction terminates, obtain described modified epoxy through washing, separation, distillation, drying.
Embodiment 3
A kind of heat-proof combustion-resistant powder coating that the present invention proposes, its raw material comprises following component by weight: epoxy resin 44 parts, end carboxyl unsaturated polyester resin 25 parts, Nitrogen-containing Phenolic Resins 10 parts, polyamide resin 18 parts, thermoplastic styrene butadiene rubber 7 parts, ammonium polyphosphate 6.5 parts, tetramethylolmethane 7 parts, trimeric cyanamide 4.2 parts, expansible black lead 9 parts, nano zircite 7.9 parts, titanium dioxide 4.2 parts, talcum powder 6.3 parts, Diphenylsilanediol 4.2 parts, 9, 10-dihydro-9-oxy is mixed-10-phospho hetero phenanthrene-10-oxide compound 3.6 parts, octadecene diacid 3.2 parts, tetramethoxymethylglycoluril 1.5 parts, benzoyl peroxide 0.38 part, auxiliary agent 2.5 parts,
Wherein, the median size of described nano zircite is 15nm; Described auxiliary agent is the combination of zinc naphthenate, acrylate flow agent, silicone antifoam agent, and the weight ratio of zinc naphthenate, acrylate flow agent, silicone antifoam agent is 12:1:5; Described epoxy resin is modified epoxy, described modified epoxy is prepared according to following technique: by weight by 30 part 1,1 '-union-2-naphthol, 17 parts of epoxy chloropropane and 2.1 parts of Tetrabutyl amonium bromides add in reaction vessel, be warming up to 93 DEG C of reaction 4.2h, then 43 parts of toluene are added and 20 parts of massfractions are the aqueous sodium hydroxide solution of 11%, at 73 DEG C, react 1.2h, after reaction terminates, obtain described modified epoxy through washing, separation, distillation, drying.
Embodiment 4
A kind of heat-proof combustion-resistant powder coating that the present invention proposes, its raw material comprises following component by weight: epoxy resin 46 parts, end carboxyl unsaturated polyester resin 23 parts, Nitrogen-containing Phenolic Resins 12 parts, polyamide resin 17 parts, thermoplastic styrene butadiene rubber 9 parts, ammonium polyphosphate 6 parts, tetramethylolmethane 8 parts, trimeric cyanamide 3 parts, expansible black lead 10 parts, nano zircite 7 parts, titanium dioxide 4.5 parts, talcum powder 5 parts, Diphenylsilanediol 4.5 parts, 9, 10-dihydro-9-oxy is mixed-10-phospho hetero phenanthrene-10-oxide compound 3 parts, octadecene diacid 3.4 parts, tetramethoxymethylglycoluril 1.1 parts, benzoyl peroxide 0.4 part, auxiliary agent 2 parts,
Wherein, described auxiliary agent is the combination of zinc naphthenate, acrylate flow agent, silicone antifoam agent, and the weight ratio of zinc naphthenate, acrylate flow agent, silicone antifoam agent is 8:3:5; The median size of described nano zircite is 20nm; Described epoxy resin is modified epoxy, described modified epoxy is prepared according to following technique: by weight by 20 part 1,1 '-union-2-naphthol, 10 parts of epoxy chloropropane and 3 parts of Tetrabutyl amonium bromides add in reaction vessel, be warming up to 85 DEG C of reaction 5h, then 30 parts of toluene are added and 20 parts of massfractions are the aqueous sodium hydroxide solution of 5%, at 75 DEG C, react 0.5h, after reaction terminates, obtain described modified epoxy through washing, separation, distillation, drying.
Embodiment 5
A kind of heat-proof combustion-resistant powder coating that the present invention proposes, its raw material comprises following component by weight: epoxy resin 40 parts, end carboxyl unsaturated polyester resin 28 parts, Nitrogen-containing Phenolic Resins 8 parts, polyamide resin 20 parts, thermoplastic styrene butadiene rubber 6 parts, ammonium polyphosphate 8 parts, tetramethylolmethane 5 parts, trimeric cyanamide 4.5 parts, expansible black lead 8 parts, nano zircite 10 parts, titanium dioxide 3 parts, talcum powder 7 parts, Diphenylsilanediol 3 parts, 9, 10-dihydro-9-oxy is mixed-10-phospho hetero phenanthrene-10-oxide compound 4 parts, octadecene diacid 3 parts, tetramethoxymethylglycoluril 1.6 parts, benzoyl peroxide 0.35 part, auxiliary agent 3 parts,
Wherein, the median size of described nano zircite is 5nm; Described auxiliary agent is the combination of zinc naphthenate, acrylate flow agent, silicone antifoam agent, and the weight ratio of zinc naphthenate, acrylate flow agent, silicone antifoam agent is 12:5:5; Described epoxy resin is modified epoxy, described modified epoxy is prepared according to following technique: by weight by 35 part 1,1 '-union-2-naphthol, 25 parts of epoxy chloropropane and 1 part of Tetrabutyl amonium bromide add in reaction vessel, be warming up to 100 DEG C of reaction 2h, then 50 parts of toluene are added and 10 parts of massfractions are the aqueous sodium hydroxide solution of 15%, at 70 DEG C, react 1.5h, after reaction terminates, obtain described modified epoxy through washing, separation, distillation, drying.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (8)
1. a heat-proof combustion-resistant powder coating, it is characterized in that, its raw material comprises following component by weight: epoxy resin 30-50 part, end carboxyl unsaturated polyester resin 20-30 part, Nitrogen-containing Phenolic Resins 5-15 part, polyamide resin 10-25 part, thermoplastic styrene butadiene rubber 3-10 part, ammonium polyphosphate 3-10 part, tetramethylolmethane 2-10 part, trimeric cyanamide 1-5 part, expansible black lead 4-12 part, nano zircite 2-15 part, titanium dioxide 1-5 part, talcum powder 2-8 part, Diphenylsilanediol 2-5 part, 9, 10-dihydro-9-oxy is mixed-10-phospho hetero phenanthrene-10-oxide compound 2-5 part, octadecene diacid 1-4 part, tetramethoxymethylglycoluril 0.4-2 part, benzoyl peroxide 0.1-0.5 part, auxiliary agent 1-4 part.
2. heat-proof combustion-resistant powder coating according to claim 1, it is characterized in that, its raw material comprises following component by weight: epoxy resin 40-46 part, end carboxyl unsaturated polyester resin 23-28 part, Nitrogen-containing Phenolic Resins 8-12 part, polyamide resin 17-20 part, thermoplastic styrene butadiene rubber 6-9 part, ammonium polyphosphate 6-8 part, tetramethylolmethane 5-8 part, trimeric cyanamide 3-4.5 part, expansible black lead 8-10 part, nano zircite 7-10 part, titanium dioxide 3-4.5 part, talcum powder 5-7 part, Diphenylsilanediol 3-4.5 part, 9, 10-dihydro-9-oxy is mixed-10-phospho hetero phenanthrene-10-oxide compound 3-4 part, octadecene diacid 3-3.4 part, tetramethoxymethylglycoluril 1.1-1.6 part, benzoyl peroxide 0.35-0.4 part, auxiliary agent 2-3 part.
3. heat-proof combustion-resistant powder coating according to claim 1 or 2, it is characterized in that, its raw material comprises following component by weight: epoxy resin 44 parts, end carboxyl unsaturated polyester resin 25 parts, Nitrogen-containing Phenolic Resins 10 parts, polyamide resin 18 parts, thermoplastic styrene butadiene rubber 7 parts, ammonium polyphosphate 6.5 parts, tetramethylolmethane 7 parts, trimeric cyanamide 4.2 parts, expansible black lead 9 parts, nano zircite 7.9 parts, titanium dioxide 4.2 parts, talcum powder 6.3 parts, Diphenylsilanediol 4.2 parts, 9, 10-dihydro-9-oxy is mixed-10-phospho hetero phenanthrene-10-oxide compound 3.6 parts, octadecene diacid 3.2 parts, tetramethoxymethylglycoluril 1.5 parts, benzoyl peroxide 0.38 part, auxiliary agent 2.5 parts.
4. heat-proof combustion-resistant powder coating according to any one of claim 1-3, it is characterized in that, described epoxy resin is modified epoxy, described modified epoxy is prepared according to following technique: by weight by 20-35 part 1, 1 '-union-2-naphthol, 10-25 part epoxy chloropropane and 1-3 part Tetrabutyl amonium bromide add in reaction vessel, be warming up to 85-100 DEG C of reaction 2-5h, then 30-50 part toluene is added and 10-20 part massfraction is the aqueous sodium hydroxide solution of 5-15%, 0.5-1.5h is reacted at 70-75 DEG C, through washing after reaction terminates, be separated, distillation, drying obtains described modified epoxy.
5. heat-proof combustion-resistant powder coating according to any one of claim 1-4, it is characterized in that, described epoxy resin is modified epoxy, described modified epoxy is prepared according to following technique: by weight by 28-32 part 1, 1 '-union-2-naphthol, 16-20 part epoxy chloropropane and 1.8-2.3 part Tetrabutyl amonium bromide add in reaction vessel, be warming up to 90-95 DEG C of reaction 3-4.5h, then 40-45 part toluene is added and 15-20 part massfraction is the aqueous sodium hydroxide solution of 10-12%, 1-1.3h is reacted at 72-75 DEG C, through washing after reaction terminates, be separated, distillation, drying obtains described modified epoxy.
6. heat-proof combustion-resistant powder coating according to any one of claim 1-5, it is characterized in that, described epoxy resin is modified epoxy, described modified epoxy is prepared according to following technique: by weight by 30 part 1, 1 '-union-2-naphthol, 17 parts of epoxy chloropropane and 2.1 parts of Tetrabutyl amonium bromides add in reaction vessel, be warming up to 93 DEG C of reaction 4.2h, then 43 parts of toluene are added and 20 parts of massfractions are the aqueous sodium hydroxide solution of 11%, 1.2h is reacted at 73 DEG C, through washing after reaction terminates, be separated, distillation, drying obtains described modified epoxy.
7. heat-proof combustion-resistant powder coating according to any one of claim 1-6, is characterized in that, the median size of described nano zircite is 5-20nm.
8. heat-proof combustion-resistant powder coating according to any one of claim 1-7, it is characterized in that, described auxiliary agent is the combination of zinc naphthenate, acrylate flow agent, silicone antifoam agent, and the weight ratio of zinc naphthenate, acrylate flow agent, silicone antifoam agent is 5-12:1-5:2-5.
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| CN105505113A (en) * | 2015-12-23 | 2016-04-20 | 铜陵市肆得科技有限责任公司 | Powder coating with fireproofing and flame retarding effects |
| CN106046648A (en) * | 2016-05-30 | 2016-10-26 | 南京禾宇化工有限公司 | Corrosion-resistant and high-temperature-resistant resin and preparing method thereof |
| CN106634567A (en) * | 2016-12-05 | 2017-05-10 | 钦州市钦南区生产力促进中心 | Heat-resistant powder coating and preparation method thereof |
| CN106675330A (en) * | 2016-12-15 | 2017-05-17 | 天长市金陵电子有限责任公司 | Electrostatic spraying coating of epoxy resin |
| CN106752784A (en) * | 2016-12-15 | 2017-05-31 | 天长市金陵电子有限责任公司 | A kind of high temperature resistant high tenacity electrostatic spraying unsaturated polyester resin coating |
| CN106752783A (en) * | 2016-12-15 | 2017-05-31 | 天长市金陵电子有限责任公司 | A kind of high fire-retardance electrostatic spraying coating |
| CN108504151A (en) * | 2018-03-24 | 2018-09-07 | 宁波市鄞州优迪文具有限公司 | A kind of blank powdery paints and the preparation method and application thereof |
| CN108217920A (en) * | 2018-03-27 | 2018-06-29 | 晋院花 | A kind of aerator of sewage disposal |
| CN116948494A (en) * | 2023-06-20 | 2023-10-27 | 广东傲博新材料有限公司 | Insulating flame-retardant corrosion-resistant powder coating for battery and preparation method thereof |
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