CN103319983B - A kind of powder coating of high bending - Google Patents
A kind of powder coating of high bending Download PDFInfo
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- CN103319983B CN103319983B CN201310213197.2A CN201310213197A CN103319983B CN 103319983 B CN103319983 B CN 103319983B CN 201310213197 A CN201310213197 A CN 201310213197A CN 103319983 B CN103319983 B CN 103319983B
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Abstract
The invention discloses a kind of powder coating of high bending, it is characterized in that it is by the raw material component epoxy E51 of following weight parts? 94-100,4,4 ' one diaminodiphenylsulfone(DDS) 15-25, nano diatomite 20-25, aerosil 10-12, modified filler 16-20, butyl polyacrylate 2-3, ABS resin 7-10,1-Methylimidazole 1-2, dibasic lead phosphite 3-4, irgasfos 168? 1-2, tantalum powder 0.8-1,2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane 0.8-1,4,4 ˊ-dithio morpholine 0.4-0.6; The powder coating hardness that the present invention produces, intensity are high, wear resistance, weathering resistance and resistance to deterioration are good, film is tough and tensile, resistance to acids and bases, snappiness are strong, the modified filler added improves dispersiveness and the mobility of mixture systems, easily disperse in powder coating, good with epoxy resin compatibility, after mixing, the fusion time is short, the density of powder coating can also be reduced, improve powder utilization, increase spray area, reduce production cost, the abs resin added and tantalum powder further enhancing the dispersing and mixing of each raw material, improve the resistance to bending of powder coating of the present invention.
Description
Technical field
The present invention relates generally to a kind of powder coating, particularly relates to a kind of powder coating of high bending.
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, the fields such as hardware machinery, be one of of paramount importance coating type in powder coating, epoxide powder coating is generally made up of epoxy resin, solidifying agent, pigment, filler and auxiliary agent.Epoxy resin is the base-material in powder coating, is important filmogen; Solidifying agent and epoxy resin react, and make its polymerization crosslinking, are indispensable components in powder coating; Pigment, filler, auxiliary agent be epoxide powder coating formula in important component, they add the physics and chemistry character effectively improving epoxide powder coating.Wherein good filler plays skeleton function in powder coating, strengthens 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 to provide a kind of hardness powder coating.
The present invention is achieved by the following technical solutions:
A powder coating for high bending, it is made up of the raw material of following weight parts:
Epoxy resin E5194-100,4,4 ' one diaminodiphenylsulfone(DDS) 15-25, nano diatomite 20-25, aerosil 10-12, modified filler 16-20, butyl polyacrylate 2-3, ABS resin 7-10,1-Methylimidazole 1-2, dibasic lead phosphite 3-4, irgasfos 168 1-2, tantalum powder 0.8-1,2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane 0.8-1,4,4'-dithio morpholine 0.4-0.6;
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 2-4,1,2-two (triethoxy is silica-based) ethane 1-2, 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 comprises the following steps:
(1) ratio being 1: 8-10 in mass ratio by unslaked lime and boiling water mixes, and digestion 4-5h, through the resonance screen filter cleaner of 180 μm, then removes the gred further through wet cyclone, obtain Ca (OH)
2suspension;
(2) by above-mentioned Ca (OH)
2two parts of the weight such as suspension is divided into, a copy of it adds b diammonium edta, magnesium chloride, tripoly phosphate sodium STPP, 1,2-two (triethoxy is silica-based) ethane of above-mentioned weight part, moves in carbonization reactor, pass into from CO after stirring
2the pure CO of steel cylinder
2air with from air compressor machine, is mixed into containing volume fraction 25-30%CO
2gas react, the stopped reaction as pH=6.5-7.0, adds above-mentioned sorbitan monooleate, stirs to obtain a liquid;
(3) another part of Ca (OH)
2suspension adds the aminopropyl triethoxysilane of above-mentioned weight part, stirring heating 20-30 minute at 90-110 DEG C, obtains b liquid;
(4) stearic acid of above-mentioned weight part is heated to 60-70 DEG C, add the ethoxylated dodecyl alcohol of above-mentioned weight part, peregal o, raised temperature is as 80-85 DEG C, constant temperature stirs 1-2 hour, slowly add above-mentioned b liquid under agitation, continue after interpolation to stir 1-2 hour, obtain c material;
(5) a material, c are expected mixing, add each raw material of residue, high speed 1500-2000 rev/min of centrifugal mixer 20-30 minute, dry, be ground into ultrafine powder, be described properties-correcting agent;
A preparation method for the powder coating of high bending, comprises the following steps:
(1) above-mentioned each raw material mixing except butyl polyacrylate is placed in high-speed mixer mixing 8-10 minute;
(2) melt extruded by screw extrusion press, feeding section temperature 30-40 DEG C, melt zone temperature 95-105 DEG C, discharging section temperature 100-110 DEG C;
(3) molten materials is through tabletting machine, controls thickness at 1-3mm, sends into crushing and classification in pulverizing mill, isolated fine powder, foreign material etc. by cyclonic separator through fragmentation, and with powder sieving from going out product, powder sieve is 50-60 order;
(4) with above-mentioned butyl polyacrylate mix and blend, after sieving, namely finished product is obtained.
Advantage of the present invention is:
The powder coating hardness that the present invention produces, intensity are high, wear resistance, weathering resistance and resistance to deterioration are good, film is tough and tensile, resistance to acids and bases, snappiness are strong, the modified filler added improves dispersiveness and the mobility of mixture systems, easily disperse in powder coating, good with epoxy resin compatibility, after mixing, the fusion time is short, the density of powder coating can also be reduced, improve powder utilization, increase spray area, reduce production cost, the abs resin added and tantalum powder further enhancing the dispersing and mixing of each raw material, improve the resistance to bending of powder coating of the present invention.
Embodiment
Embodiment 1
A powder coating for high bending, it is made up of the raw material of following weight parts (kilogram):
Epoxy resin E51100,4,4 ' one diaminodiphenylsulfone(DDS) 25, nano diatomite 25, aerosil 12, modified filler 20, butyl polyacrylate 3, ABS resin 10,1-Methylimidazole 1, dibasic lead phosphite 4, irgasfos 168 1-2, tantalum powder 0.8,2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane 0.8,4,4'-dithio morpholine 0.6;
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 4,1,2-two (triethoxy is silica-based) ethane 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 comprises the following steps:
(1) ratio being 1: 10 in mass ratio by unslaked lime and boiling water mixes, and digestion 5h, through the resonance screen filter cleaner of 180 μm, then removes the gred further through wet cyclone, obtain Ca (OH)
2suspension;
(2) by above-mentioned Ca (OH)
2two parts of the weight such as suspension is divided into, a copy of it adds b diammonium edta, magnesium chloride, tripoly phosphate sodium STPP, 1,2-two (triethoxy is silica-based) ethane of above-mentioned weight part, moves in carbonization reactor, pass into from CO after stirring
2the pure CO of steel cylinder
2air with from air compressor machine, is mixed into containing volume fraction 30%CO
2gas react, the stopped reaction as pH=7.0, adds above-mentioned sorbitan monooleate, stirs to obtain a liquid;
(3) another part of Ca (OH)
2suspension adds the aminopropyl triethoxysilane of above-mentioned weight part, and at 90-110 DEG C, stirring heating 30 minutes, obtains b liquid;
(4) stearic acid of above-mentioned weight part is heated to 70 DEG C, add the ethoxylated dodecyl alcohol of above-mentioned weight part, peregal o, raised temperature is as 85 DEG C, constant temperature stirs 2 hours, slowly add above-mentioned b liquid under agitation, continue stirring after interpolation 2 hours, obtain c material;
(5) a material, c are expected mixing, add each raw material of residue, at a high speed 2000 revs/min of centrifugal mixer 20-30 minute, dry, be ground into ultrafine powder, be described properties-correcting agent.
A preparation method for the powder coating of high bending, comprises the following steps:
(1) above-mentioned each raw material mixing except butyl polyacrylate is placed in high-speed mixer and mixes 10 minutes;
(2) melt extruded by screw extrusion press, feeding section temperature 40 DEG C, melt zone temperature 105 DEG C, discharging section temperature 110 DEG C;
(3) molten materials is through tabletting machine, controls thickness at 3mm, sends into crushing and classification in pulverizing mill, isolated fine powder, foreign material etc. by cyclonic separator through fragmentation, and with powder sieving from going out product, powder sieve is 60 orders;
(4) with above-mentioned butyl polyacrylate mix and blend, after sieving, namely finished product is obtained.
Performance test:
Appearance of film: flat smooth, without shrinkage cavity;
Adhesion 1 grade;
Resistance to impact strength >=50Kgcm;
Pencil hardness test: 2H is without scuffing;
Bendability: 4D diameter bend, completes, without macroscopic crackle in outside radius for 15 seconds;
Resist chemical (45d, 25 DEG C, saturated calcium hydroxide): coating is without foaming, softening, pore-free, and viscosity is unchanged;
Water tolerance: the steel plate of spraying powder coating of the present invention is vertically placed in High pressure steam sterilizer, the leaching of the area of steel plate 80% is kept to hang in the distilled water of boiling, continue to place 75h under keeping the pressure of 0.1MPa, with blower, surface water is dried up after taking-up, coating is without foaming, softening, variable color, the phenomenon such as to get rusty, and viscosity is also unchanged.
Claims (1)
1. the powder coating of a high bending, it is characterized in that the raw material comprising following weight parts: epoxy resin E5194-100,4,4 '-diaminodiphenylsulfone(DDS) 15-25, nano diatomite 20-25, aerosil 10-12, modified filler 16-20, butyl polyacrylate 2-3, ABS resin 7-10,1-Methylimidazole 1-2, dibasic lead phosphite 3-4, irgasfos 168 1-2, tantalum powder 0.8-1,2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane 0.8-1,4,4'-dithio morpholine 0.4-0.6;
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, ethylenediamine tetraacetic acid (EDTA) 2-3, tripoly phosphate sodium STPP 2-4,1,2-two (triethoxy is silica-based) ethane 1-2, 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, paregal O 1-2, diisobutyl phthalate 1-2;
The preparation method of described modified filler comprises the following steps:
(1) ratio being 1: 8-10 in mass ratio by unslaked lime and boiling water mixes, and digestion 4-5h, through the resonance screen filter cleaner of 180 μm, then removes the gred further through wet cyclone, obtain Ca (OH)
2suspension;
(2) by above-mentioned Ca (OH)
2two parts of the weight such as suspension is divided into, a copy of it adds ethylenediamine tetraacetic acid (EDTA), magnesium chloride, tripoly phosphate sodium STPP, 1,2-two (triethoxy is silica-based) ethane of above-mentioned weight part, moves in carbonization reactor, pass into from CO after stirring
2the pure CO of steel cylinder
2air with from air compressor machine, is mixed into containing volume fraction 25-30%CO
2gas react, the stopped reaction as pH=6.5-7.0, adds above-mentioned sorbitan monooleate, stirs to obtain a liquid;
(3) another part of Ca (OH)
2suspension adds the aminopropyl triethoxysilane of above-mentioned weight part, stirring heating 20-30 minute at 90-110 DEG C, obtains b liquid;
(4) stearic acid of above-mentioned weight part is heated to 60-70 DEG C, add the ethoxylated dodecyl alcohol of above-mentioned weight part, paregal O, raised temperature is as 80-85 DEG C, constant temperature stirs 1-2 hour, slowly add above-mentioned b liquid under agitation, continue after interpolation to stir 1-2 hour, obtain c material;
(5) a liquid, c are expected mixing, add each raw material of residue, high speed 1500-2000 rev/min of centrifugal mixer 20-30 minute, dry, be ground into ultrafine powder, be described modified filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310213197.2A CN103319983B (en) | 2013-05-31 | 2013-05-31 | A kind of powder coating of high bending |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310213197.2A CN103319983B (en) | 2013-05-31 | 2013-05-31 | A kind of powder coating of high bending |
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| CN103319983A CN103319983A (en) | 2013-09-25 |
| CN103319983B true CN103319983B (en) | 2016-01-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104194539B (en) * | 2014-09-28 | 2016-04-20 | 芜湖县双宝建材有限公司 | A kind of high adhesive force stamping enamel |
| KR102567190B1 (en) * | 2017-07-28 | 2023-08-14 | 주고꾸 도료 가부시키가이샤 | Coating composition, coating film, substrate with coating film and producing method for substrate with coating film |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102295824A (en) * | 2011-07-08 | 2011-12-28 | 蓝星(北京)化工机械有限公司 | One-part high-performance epoxy resin composition for pultrusion |
| CN102993518A (en) * | 2012-11-13 | 2013-03-27 | 安徽文峰电子科技集团有限公司 | Stretch-proof cable sheath insulation material and preparation method thereof |
| CN103059356A (en) * | 2012-12-31 | 2013-04-24 | 安徽省佳宝玩具(集团)有限公司 | Latex and plush combined toy and production process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2012180400A (en) * | 2011-02-28 | 2012-09-20 | Sekisui Jushi Co Ltd | Hot melt road marking paint |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102295824A (en) * | 2011-07-08 | 2011-12-28 | 蓝星(北京)化工机械有限公司 | One-part high-performance epoxy resin composition for pultrusion |
| CN102993518A (en) * | 2012-11-13 | 2013-03-27 | 安徽文峰电子科技集团有限公司 | Stretch-proof cable sheath insulation material and preparation method thereof |
| CN103059356A (en) * | 2012-12-31 | 2013-04-24 | 安徽省佳宝玩具(集团)有限公司 | Latex and plush combined toy and production process thereof |
Non-Patent Citations (1)
| Title |
|---|
| 纳米级和特型活性碳酸钙的制备;白鸽玲等;《应用化工》;20011231;第30卷(第6期);第10-13页 * |
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