CN103289530A - Powder coating with high adhesive force - Google Patents
Powder coating with high adhesive force Download PDFInfo
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- CN103289530A CN103289530A CN2013102153308A CN201310215330A CN103289530A CN 103289530 A CN103289530 A CN 103289530A CN 2013102153308 A CN2013102153308 A CN 2013102153308A CN 201310215330 A CN201310215330 A CN 201310215330A CN 103289530 A CN103289530 A CN 103289530A
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Abstract
The invention discloses a powder coating with high adhesive force. The powder coating is characterized by comprising the following raw materials in parts by weight: 92 to 100 parts of epoxy resin E44, 18 to 25 parts of polyazelaic polyanhydride, 7 to 9 parts of hexahydrophthalic anhydride, 21 to 27 parts of feldspar powder, 13 to 20 parts of modified filler, 1 to 2 parts of butyl acrylate resin, 6 to 10 parts of PVC (Poly Vinyl Chloride) resin, 1 to 2 parts of 4-methylimidazole, 3 to 4 parts of sodium tripolyphosphate, 8 to 10 parts of fumed silica, 1 to 2 parts of antioxidant 1010, 0.3 to 0.5 part of niobium diselenide, and 0.8 to 1 part of N-phenyl-3-aminopropyltrimethoxysilane. The powder coating produced is high in hardness and strength and outstanding in resistance to wear, weather and ageing; a coating film is tough, resistant to acid and alkali and high in flexibility; the added modifying filler improves the dispersibility and mobility of a mixture system, is easily dispersed in the powder coating, is compatible with epoxy resin well, can be melted in a short time after being mixed, and also can reduce the density of the powder coating, increase the coating ratio and spraying area and decrease the production cost; the added PVC resin and a solid lubricating agent naming niobium diselenide further enhance the diffusion and mixing of each raw material and improve the adhesive force and overall performance of the powder coating.
Description
Technical field
The present invention relates generally to a kind of powder coating, relates in particular to a kind of powder coating of high adhesive force.
Background technology
Epoxy powder coating is with strong, the high temperature resistant and excellent electrical insulation capability of its bonding force, be widely used in household electrical appliances, the vehicles, fields such as hardware machinery, be one of of paramount importance coating type in the powder coating, epoxide powder coating generally is made up of Resins, epoxy, solidifying agent, pigment, filler and auxiliary agent.Resins, epoxy is the base-material in the powder coating, is important filmogen; Solidifying agent and Resins, epoxy reaction make its polymerization crosslinking, are indispensable components in the powder coating; Pigment, filler, auxiliary agent are the important component in the epoxide powder coating prescription, and their adding can effectively improve physics and the chemical property of epoxide powder coating.Wherein good filler plays skeleton function in powder coating, strengthen film performance, also can reduce the production cost of powder coating, can also improve the powder utilization of powder and spray area etc.
Summary of the invention
The object of the invention is exactly for a kind of hardness powder coating is provided.
The present invention is achieved by the following technical solutions:
A kind of powder coating of high adhesive force, it is made up of the raw material of following weight parts:
Resins, epoxy E44 92-100, poly-nonane diacid acid anhydride 18-25, hexahydro phthalic anhydride 7-9, Feldspar Powder 21-27, modified filler 13-20, butyl polyacrylate 1-2, polyvinyl chloride resin 6-10,4-methylimidazole 1-2, tripoly phosphate sodium STPP 3-4, aerosil 8-10, antioxidant 1010 1-2, two selenizing niobium 0.3-0.5, N-phenyl-3-TSL 8330 0.8-1;
Described modified filler is made up of the raw material of following weight parts:
Unslaked lime 90-100, stearic acid 30-50, magnesium chloride 3-5, b diammonium edta 2-3, tripoly phosphate sodium STPP 2-4,1, two (triethoxy is silica-based) ethane 1-2 of 2-, aminopropyl triethoxysilane 1-2, sorbitan monooleate 1-3, sodium polyacrylate 3-4, di-t-butyl peroxide 0.8-1, ethoxylated dodecyl alcohol 0.5-1, peregal o1-2, diisobutyl phthalate 1-2.
The preparation method of described modified filler may further comprise the steps:
(1) be 1 with unslaked lime and boiling water by mass ratio: the mixed of 8-10, digestion 4-5h, the resonance screen filter cleaner through 180 μ m further removes the gred through wet cyclone again, obtains Ca (OH)
2Suspension;
(2) with above-mentioned Ca (OH)
2Two parts of weight such as suspension is divided into, a copy of it adds b diammonium edta, magnesium chloride, the tripoly phosphate sodium STPP, 1 of above-mentioned weight part, two (triethoxy the is silica-based) ethane of 2-, the back that stirs moves in the carbonization reactor, feeds from CO
2The pure CO of steel cylinder
2With the air from air compressor machine, be mixed into and contain volume fraction 25-30%CO
2Gas react, stopped reaction when pH=6.5-7.0 adds above-mentioned sorbitan monooleate, stir a liquid;
(3) another part Ca (OH)
2Suspension adds the aminopropyl triethoxysilane of above-mentioned weight part, at 90-110 ℃ of following stirring heating 20-30 minute, gets b liquid;
(4) stearic acid with above-mentioned weight part is heated to 60-70 ℃, adds ethoxylated dodecyl alcohol, the peregal o of above-mentioned weight part, and the rising temperature is as for 80-85 ℃, constant temperature stirred 1-2 hour, under agitation condition, slowly add above-mentioned b liquid, add the back that finishes and continue to stir 1-2 hour, get the c material;
(5) a material, c expects to mix, add each raw material of residue, high speed 1500-2000 rev/min of centrifugal stirring 20-30 minute dried, and is ground into ultrafine powder, is described properties-correcting agent;
A kind of preparation method of powder coating of high adhesive force may further comprise the steps:
(1) above-mentioned each raw material mixing except butyl polyacrylate was placed the high-speed mixer mixing 8-10 minute;
(2) melt extrude 30-40 ℃ of feeding section temperature, 95-105 ℃ of melt zone temperature, 100-110 ℃ of discharging section temperature by screw extrusion press;
(3) molten materials is through the tabletting machine compressing tablet, and control thickness is sent into crushing and classification in the pulverizing mill at 1-3mm through fragmentation, isolates fine powder, foreign material etc. by cyclonic separator, and with powder sieving from going out product, the powder sieve is the 50-60 order;
(4) mix stirring with above-mentioned butyl polyacrylate, namely make finished product after sieving.
Advantage of the present invention is:
The powder coating hardness that the present invention produces, the intensity height, wear resistance, weathering resistance and resistance to deterioration are good, it is tough and tensile to film, resistance to acids and bases, snappiness is strong, the modified filler that adds has improved the dispersed and mobile of mixture systems, in powder coating, disperse easily, good with epoxy resin compatibility, mix back fusion time weak point, can also reduce the density of powder coating, improve powder utilization, increase spray area, reduce production costs, the dispersing and mixing that the polyvinyl chloride resin that adds and solid lubricant two selenizing niobiums have further strengthened each raw material has improved sticking power and the overall performance of powder coating of the present invention.
Embodiment
Embodiment 1
A kind of powder coating of high adhesive force, it is made up of the raw material of following weight parts (kilogram):
Resins, epoxy E44 100, poly-nonane diacid acid anhydride 25, hexahydro phthalic anhydride 9, Feldspar Powder 27, modified filler 20, butyl polyacrylate 2, polyvinyl chloride resin 10,4-methylimidazole 2, tripoly phosphate sodium STPP 3-4, aerosil 10, antioxidant 1010 2, two selenizing niobiums 0.5, N-phenyl-3-TSL 8330 0.8;
Described modified filler is made up of the raw material of following weight parts:
Unslaked lime 100, stearic acid 50, magnesium chloride 5, b diammonium edta 3, tripoly phosphate sodium STPP 4,1, two (triethoxy the is silica-based) ethane 2 of 2-, aminopropyl triethoxysilane 2, sorbitan monooleate 3, sodium polyacrylate 4, di-t-butyl peroxide 0.8, ethoxylated dodecyl alcohol 0.5, peregal o2, diisobutyl phthalate 2;
The preparation method of described modified filler may further comprise the steps:
(1) be 1: 10 mixed with unslaked lime and boiling water by mass ratio, digestion 5h, the resonance screen filter cleaner through 180 μ m further removes the gred through wet cyclone again, obtains Ca (OH)
2Suspension;
(2) with above-mentioned Ca (OH)
2Two parts of weight such as suspension is divided into, a copy of it adds b diammonium edta, magnesium chloride, the tripoly phosphate sodium STPP, 1 of above-mentioned weight part, two (triethoxy the is silica-based) ethane of 2-, the back that stirs moves in the carbonization reactor, feeds from CO
2The pure CO of steel cylinder
2With the air from air compressor machine, be mixed into and contain volume fraction 30%CO
2Gas react, stopped reaction when pH=7.0 adds above-mentioned sorbitan monooleate, stir a liquid;
(3) another part Ca (OH)
2Suspension adds the aminopropyl triethoxysilane of above-mentioned weight part, 90-110 ℃ of following stirring heating 30 minutes, gets b liquid;
(4) stearic acid with above-mentioned weight part is heated to 70 ℃, adds ethoxylated dodecyl alcohol, the peregal o of above-mentioned weight part, and the rising temperature is as for 85 ℃, constant temperature stirred 2 hours, under agitation condition, slowly add above-mentioned b liquid, add the back that finishes and continue to stir 2 hours, get the c material;
(5) a material, c are expected to mix, add each raw material of residue, 2000 rev/mins of centrifugal stirrings of high speed 20-30 minute, oven dry is ground into ultrafine powder, is described properties-correcting agent.
A kind of preparation method of powder coating of high adhesive force may further comprise the steps:
(1) place high-speed mixer to mix 10 minutes above-mentioned each raw material mixing except butyl polyacrylate;
(2) melt extrude 40 ℃ of feeding section temperature, 105 ℃ of melt zone temperature, 110 ℃ of discharging section temperature by screw extrusion press;
(3) molten materials is through the tabletting machine compressing tablet, and control thickness is sent into crushing and classification in the pulverizing mill at 3mm through fragmentation, isolates fine powder, foreign material etc. by cyclonic separator, and with powder sieving from going out product, it is 60 orders that powder sieves;
(4) mix stirring with above-mentioned butyl polyacrylate, namely make finished product after sieving.
Performance test:
Appearance of film: smooth smooth, no shrinkage cavity;
1 grade of sticking power;
Anti-impact strength 〉=50Kgcm;
Pencil hardness test: 2H does not have scuffing;
Bendability: the bending of 4D diameter, finished no macroscopic crackle on the outside radius in 15 seconds;
Resist chemical (45d, 24 ℃, saturated calcium hydroxide): coating does not have foaming, softening, pore-free, viscosity no change;
Water tolerance: the steel plate that will spray powder coating of the present invention vertically places in the High pressure steam sterilizer, keep the area of steel plate 80% to soak in the distilled water that hangs over boiling, continue to place 80h under the pressure of maintenance 0.1MPa, taking out the back dries up surface water with blower, phenomenons such as coating do not have foaming, softening, variable color, get rusty, viscosity is no change also.
Claims (1)
1. the powder coating of a high adhesive force is characterized in that it is made up of the raw material of following weight parts:
Resins, epoxy E44 92-100, poly-nonane diacid acid anhydride 18-25, hexahydro phthalic anhydride 7-9, Feldspar Powder 21-27, modified filler 13-20, butyl polyacrylate 1-2, polyvinyl chloride resin 6-10,4-methylimidazole 1-2, tripoly phosphate sodium STPP 3-4, aerosil 8-10, antioxidant 1010 1-2, two selenizing niobium 0.3-0.5, N-phenyl-3-TSL 8330 0.8-1;
Described modified filler is made up of the raw material of following weight parts:
Unslaked lime 90-100, stearic acid 30-50, magnesium chloride 3-5, b diammonium edta 2-3, tripoly phosphate sodium STPP 2-4,1, two (triethoxy is silica-based) ethane 1-2 of 2-, aminopropyl triethoxysilane 1-2, sorbitan monooleate 1-3, sodium polyacrylate 3-4, di-t-butyl peroxide 0.8-1, ethoxylated dodecyl alcohol 0.5-1, peregal o1-2, diisobutyl phthalate 1-2;
The preparation method of described modified filler may further comprise the steps:
(1) be 1 with unslaked lime and boiling water by mass ratio: the mixed of 8-10, digestion 4-5h, the resonance screen filter cleaner through 180 μ m further removes the gred through wet cyclone again, obtains Ca (OH)
2Suspension;
(2) with above-mentioned Ca (OH)
2Two parts of weight such as suspension is divided into, a copy of it adds b diammonium edta, magnesium chloride, the tripoly phosphate sodium STPP, 1 of above-mentioned weight part, two (triethoxy the is silica-based) ethane of 2-, the back that stirs moves in the carbonization reactor, feeds from CO
2The pure CO of steel cylinder
2With the air from air compressor machine, be mixed into and contain volume fraction 25-30%CO
2Gas react, stopped reaction when pH=6.5-7.0 adds above-mentioned sorbitan monooleate, stir a liquid;
(3) another part Ca (OH)
2Suspension adds the aminopropyl triethoxysilane of above-mentioned weight part, at 90-110 ℃ of following stirring heating 20-30 minute, gets b liquid;
(4) stearic acid with above-mentioned weight part is heated to 60-70 ℃, adds ethoxylated dodecyl alcohol, the peregal o of above-mentioned weight part, and the rising temperature is as for 80-85 ℃, constant temperature stirred 1-2 hour, under agitation condition, slowly add above-mentioned b liquid, add the back that finishes and continue to stir 1-2 hour, get the c material;
(5) a material, c expects to mix, add each raw material of residue, high speed 1500-2000 rev/min of centrifugal stirring 20-30 minute dried, and is ground into ultrafine powder, is described properties-correcting agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310215330.8A CN103289530B (en) | 2013-05-31 | 2013-05-31 | A kind of powdery paints of high adhesion force |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310215330.8A CN103289530B (en) | 2013-05-31 | 2013-05-31 | A kind of powdery paints of high adhesion force |
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| CN103289530A true CN103289530A (en) | 2013-09-11 |
| CN103289530B CN103289530B (en) | 2016-05-11 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105062309A (en) * | 2015-07-31 | 2015-11-18 | 安徽圣德建材科技有限公司 | Weatherproof epoxy powdery paint |
| CN107378278A (en) * | 2017-07-18 | 2017-11-24 | 浦江县顺光科技有限公司 | A kind of laser cutting machine slag removal equipment |
| CN107470798A (en) * | 2017-07-21 | 2017-12-15 | 兰溪市拜瑞珂科技服务有限公司 | A kind of protector on welding gun |
| CN107556829A (en) * | 2016-07-01 | 2018-01-09 | 夏杰 | A kind of fire-fighting powdery paints |
| CN115403873A (en) * | 2022-09-30 | 2022-11-29 | 金发科技股份有限公司 | Polypropylene material with high primer painting rate and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101760114A (en) * | 2010-01-27 | 2010-06-30 | 海洋王照明科技股份有限公司 | Antiseptic powder coating, manufacturing method and applying method thereof |
| CN102786866A (en) * | 2011-05-19 | 2012-11-21 | 安徽华辉塑业科技有限公司 | Metal door dedicated thin-coating thermosetting powder coating |
-
2013
- 2013-05-31 CN CN201310215330.8A patent/CN103289530B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101760114A (en) * | 2010-01-27 | 2010-06-30 | 海洋王照明科技股份有限公司 | Antiseptic powder coating, manufacturing method and applying method thereof |
| CN102786866A (en) * | 2011-05-19 | 2012-11-21 | 安徽华辉塑业科技有限公司 | Metal door dedicated thin-coating thermosetting powder coating |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105062309A (en) * | 2015-07-31 | 2015-11-18 | 安徽圣德建材科技有限公司 | Weatherproof epoxy powdery paint |
| CN107556829A (en) * | 2016-07-01 | 2018-01-09 | 夏杰 | A kind of fire-fighting powdery paints |
| CN107378278A (en) * | 2017-07-18 | 2017-11-24 | 浦江县顺光科技有限公司 | A kind of laser cutting machine slag removal equipment |
| CN107470798A (en) * | 2017-07-21 | 2017-12-15 | 兰溪市拜瑞珂科技服务有限公司 | A kind of protector on welding gun |
| CN115403873A (en) * | 2022-09-30 | 2022-11-29 | 金发科技股份有限公司 | Polypropylene material with high primer painting rate and preparation method and application thereof |
| CN115403873B (en) * | 2022-09-30 | 2023-08-22 | 金发科技股份有限公司 | Polypropylene material with high primer coating rate and preparation method and application thereof |
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| CN103289530B (en) | 2016-05-11 |
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