CN103160185A - Matte epoxy/ polyester powder coating and preparation method thereof - Google Patents
Matte epoxy/ polyester powder coating and preparation method thereof Download PDFInfo
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- CN103160185A CN103160185A CN2013100564298A CN201310056429A CN103160185A CN 103160185 A CN103160185 A CN 103160185A CN 2013100564298 A CN2013100564298 A CN 2013100564298A CN 201310056429 A CN201310056429 A CN 201310056429A CN 103160185 A CN103160185 A CN 103160185A
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Abstract
The invention discloses matte epoxy/polyester powder coating and a preparation method of the matte epoxy/polyester powder coating. The matte epoxy/polyester powder coating comprises the following raw materials, by weight, 250 parts-300 parts of epoxy resin (E-12), 250 parts-300 parts of polyester resin (P5127), 5 parts-10 parts of a flatting agent (GLP-503), 5 parts-10 parts of brightener (BLC701), 5 parts-10 parts of an extinction agent (XG603-2A), 8 parts-12 parts of benzoin, 5 parts-10 parts of modified polyethylene wax micro powder, 200 parts-250 parts of extinction barium sulfate, 50 parts-80 parts of torispherical silica powder, 5 parts-8 parts of 2-phenyl- imidazoline, 4 parts-6 parts of 2-methyl-imidazole, and 8 parts-12 parts of carbon black. The matte epoxy/polyester powder coating has the advantages of being high in hardness, high in intensity, highly wear resistant, good in heat resistance, good in aging resistant, good in stability of gloss, short in curing time, environment-friendly, pollution-free, and the like. The matte epoxy/polyester powder coating is excellent in performance, and is high in performance indexes of acid-base resistance, salt mist resistance, and organic solvent resistance such as gasoline resistance.
Description
Technical field
The present invention relates to a kind of powder coating, be specifically related to a kind of sub-smooth type epoxy/polyester powder coating and preparation method thereof.
Background technology
Powder coating is as a kind of environment-friendly type coating, have solvent-free, lowly pollute, coating process is simple, the coating efficiency advantages of higher, has obtained fast development.Wherein matt powder coating is a kind of powder coating commonly used, can be sprayed on the shell of household electrical appliance, equipment, furniture etc., increase the performances such as water-fast, sun-proof, rub resistance and anti-pollution that decorate properties strengthens them simultaneously, the class of product is improved greatly, reach required glossiness, bright-colored, attractive and durable.The shortcomings such as but inferior optical coating in the market exists ovenable roasting poor-performing, and stable glossiness is good have not affected the quality of inferior optical coating.
Summary of the invention
The object of the present invention is to provide a kind of sub-smooth type epoxy/polyester powder coating and preparation method thereof, improved the stability of gloss of matt powder coating, make it can not cross slowly and significantly with the heat-up rate of baking box to change, have simultaneously higher surperficial sophistication.
The technical solution used in the present invention is as follows:
A kind of sub-smooth type epoxy/polyester powder coating, it is to be made by the raw material of following weight part:
Epoxy resin (E-12) 250-300
Vibrin (P5127) 250-300
Flow agent (GLP503) 5-10
Brightening agent (BLC701) 5-10
Matting agent (XG603-2A) 5-10
St-yrax 8-12
Modified polyethylene wax powder 5-10
Delustring barium sulfate 200-250
Accurate ball-type silicon powder 50-80
2-benzylimidazoline 5-8
Glyoxal ethyline 4-6
Carbon black 8-12.
Preferably, a kind of sub-smooth type epoxy/polyester powder coating, it is to be made by the raw material of following weight part:
Epoxy resin (E-12) 300
Vibrin (P5127) 300
Flow agent (GLP503) 10
Brightening agent (BLC701) 10
Matting agent (XG603-2A) 10
St-yrax 10
Modified polyethylene wax powder 10
Delustring barium sulfate 250
Accurate ball-type silicon powder 50
2-benzylimidazoline 5
Glyoxal ethyline 5
Carbon black 10.
The granularity of described accurate ball-type silicon powder is the 400-600 order.
described modified polyethylene wax micro mist is made by following methods: (1) with ptfe micropowder, gas-phase silica and trees ashes in mass ratio 3-5:1-2:0.5-1 add and mix 20-30min in high-speed mixer, add again the sodium lauryl sulphate of 1-2%, the sodium stearate of 2-3% and the Silane coupling agent KH550 of 0.5-1%, stir 15-20min with the 2000-3000rpm rotating speed in 70-80 ℃ of water-bath, get mixture, standby, (2) polyethylene wax is heated to 95-98 ℃, when it is melted into fused solution fully, the mixture that adds the step (1) of 5-10% to make, after 4000-5000rpm high speed shear 10-15min, the nozzle by spray tower simultaneously with fused solution and 150-170 ℃ of hot compressed air, spray under 0.6-1.2MPa pressure in 0-3 ℃ of frozen drying tower, the drop of nozzle ejection is solidified rapidly, fall to entering cyclonic separator, the median size of collecting is that the coarse grain of 10-20 μ m enters cyclonic separator after by micronizer mill, namely getting particle diameter is the modified polyethylene wax micro mist of 1-3 μ m.
Described ptfe micropowder particle diameter is 2-4 μ m; Described gas-phase silica particle diameter is 30-40nm.
The preparation method of sub-smooth type epoxy/polyester powder coating comprises the following steps:
(1) take quantitative resin by formulation ratio and each auxiliary agent disperses 5-10min in the grinding dispersion machine, lumpy material is crushed to granularity less than 5mm, and each component is fully mixed;
(2) material that mixes is sent into screw extrusion press through feeder and melt extrude, the extruder barrel temperature is 110-120 ℃, and the extruder screw temperature is 70-80 ℃, and the forcing machine rotating speed is 60-70rpm;
(3) material of extruding is pressed into thin slice through the compressing tablet cooler, and carry out cooling, then cooled chip material is broken into less sheet material, again this small thin slices is delivered to that to carry out fine powder in air classifying mill broken, finally by cyclonic separator screening, obtain the powder coating that particle diameter is 40-50 μ m after removing ultra-fine thing, foreign material, meal.
The condition of cure of described powder coating is: workpiece surface temperature 170-190 ℃, and baking 10-15min.
Beneficial effect of the present invention:
The present invention is by the optimization of formulation for coating material, and cooperatively interacting of different auxiliary agents improved the stability of gloss of matt powder coating, makes it to have higher ovenable roasting performance and surperficial sophistication, has improved the performance of matt powder coating.Also added in addition accurate ball-type silicon powder with the Substitute For Partial ultra-fine barium sulfate, can effectively improve wettability and the affinity of filler in organism, dispersiveness and the mobility of mixture systems have been improved, increase the density and hardness of material, strengthened physical strength, Young's modulus, ageing-resistant performance, weather resistance, resistance toheat of cured article etc.The present invention can improve coating wear resistance, resistance to marring by polyethylene wax is carried out modification, improves the coating surface sophistication, makes more smooth, the texture of filming.The advantages such as the powder coating that the present invention prepares has high rigidity, high strength, high abrasion, good heat resistance, ageing resistance is good, stability of gloss is good, set time is fast, environment friendly and pollution-free; Film performance is excellent, and the performance index of the organic solvent each side such as acid and alkali-resistance, salt spray resistance, anti-gasoline are all very high.
Embodiment
A kind of sub-smooth type epoxy/polyester powder coating, it is to be made by the raw material of following weight part:
300 parts of epoxy resin (E-12)
300 parts, vibrin (P5127)
10 parts of flow agents (GLP503)
10 parts of brightening agents (BLC701)
10 parts of matting agents (XG603-2A)
10 parts of st-yraxes
10 parts, modified polyethylene wax powder
250 parts, delustring barium sulfate
50 parts of accurate ball-type silicon powders
5 parts of 2-benzylimidazolines
5 parts of glyoxal ethylines
10 parts of carbon blacks.
Wherein, the granularity of described accurate ball-type silicon powder is 600 orders.
Described modified polyethylene wax micro mist is made by following methods: (1) with ptfe micropowder, gas-phase silica and trees ashes in mass ratio 4:1.5:0.8 add and mix 25min in high-speed mixer, add again 1.5% sodium lauryl sulphate, 2% sodium stearate and 0.6% Silane coupling agent KH550, stir 15min with the 3000rpm rotating speed in 80 ℃ of water-baths, get mixture, standby; (2) polyethylene wax is heated to 95 ℃, when it is melted into fused solution fully, the mixture that adds 7% step (1) to make, after 5000rpm high speed shear 10min, the nozzle by spray tower simultaneously with fused solution and 165 ℃ of hot compressed airs, spray under 0.8MPa pressure in 1 ℃ of frozen drying tower, the drop of nozzle ejection is solidified rapidly, fall to entering cyclonic separator, the median size of collecting is that the coarse grain of 15 μ m enters cyclonic separator after by micronizer mill, and namely getting particle diameter is the modified polyethylene wax micro mist of 2 μ m.
Described ptfe micropowder particle diameter is 3 μ m; Described gas-phase silica particle diameter is 36nm.
The preparation method of sub-smooth type epoxy/polyester powder coating comprises the following steps:
(1) take quantitative resin by formulation ratio and each auxiliary agent disperses 8min in the grinding dispersion machine, lumpy material is crushed to granularity less than 5mm, and each component is fully mixed;
(2) material that mixes is sent into screw extrusion press through feeder and melt extrude, the extruder barrel temperature is 120 ℃, and the extruder screw temperature is 80 ℃, and the forcing machine rotating speed is 70rpm;
(3) material of extruding is pressed into thin slice through the compressing tablet cooler, and carry out cooling, then cooled chip material is broken into less sheet material, again this small thin slices is delivered to that to carry out fine powder in air classifying mill broken, finally by cyclonic separator screening, obtain the powder coating that particle diameter is 50 μ m after removing ultra-fine thing, foreign material, meal.
Adopt the electrostatic spraying constructional method to be sprayed on the substrate of steel plate of sandblast pre-treatment this powder coating, average coating thickness is 50-80 μ m, then uses electric heating constant temperature at 185 ℃ of lower baking-curing 15min, naturally cools to room temperature, after placing 24h, measure film performance.Its film performance is as follows: 10%≤glossiness (60 ℃)≤45%, sticking power≤1 grade, anti-impact strength 〉=50Kgcm, anti-bending≤3mm, pencil hardness 〉=1H.
Claims (7)
1. a sub-smooth type epoxy/polyester powder coating, is characterized in that, it is to be made by the raw material of following weight part:
Epoxy resin (E-12) 250-300
Vibrin (P5127) 250-300
Flow agent (GLP503) 5-10
Brightening agent (BLC701) 5-10
Matting agent (XG603-2A) 5-10
St-yrax 8-12
Modified polyethylene wax micro mist 5-10
Delustring barium sulfate 200-250
Accurate ball-type silicon powder 50-80
2-benzylimidazoline 5-8
Glyoxal ethyline 4-6
Carbon black 8-12.
2. sub-smooth type epoxy/polyester powder coating according to claim 1, is characterized in that, it is to be made by the raw material of following weight part:
Epoxy resin (E-12) 300
Vibrin (P5127) 300
Flow agent (GLP503) 10
Brightening agent (BLC701) 10
Matting agent (XG603-2A) 10
St-yrax 10
Modified polyethylene wax micro mist 10
Delustring barium sulfate 250
Accurate ball-type silicon powder 50
2-benzylimidazoline 5
Glyoxal ethyline 5
Carbon black 10.
3. sub-smooth type epoxy/polyester powder coating according to claim 1 and 2, is characterized in that, the granularity of described accurate ball-type silicon powder is the 400-600 order.
4. sub-smooth type epoxy/polyester powder coating according to claim 1 and 2, it is characterized in that, described modified polyethylene wax micro mist is made by following methods: (1) with ptfe micropowder, gas-phase silica and trees ashes in mass ratio 3-5:1-2:0.5-1 add and mix 20-30min in high-speed mixer, add again the sodium lauryl sulphate of 1-2%, the sodium stearate of 2-3% and the Silane coupling agent KH550 of 0.5-1%, stir 15-20min with the 2000-3000rpm rotating speed in 70-80 ℃ of water-bath, get mixture, standby, (2) polyethylene wax is heated to 95-98 ℃, when it is melted into fused solution fully, the mixture that adds the step (1) of 5-10% to make, after 4000-5000rpm high speed shear 10-15min, the nozzle by spray tower simultaneously with fused solution and 150-170 ℃ of hot compressed air, spray under 0.6-1.2MPa pressure in 0-3 ℃ of frozen drying tower, the drop of nozzle ejection is solidified rapidly, fall to entering cyclonic separator, the median size of collecting is that the coarse grain of 10-20 μ m enters cyclonic separator after by micronizer mill, namely getting particle diameter is the modified polyethylene wax micro mist of 1-3 μ m.
5. sub-smooth type epoxy/polyester powder coating according to claim 4, is characterized in that, described ptfe micropowder particle diameter is 2-4 μ m; Described gas-phase silica particle diameter is 30-40nm.
6. the preparation method of a sub-smooth type epoxy/polyester powder coating as claimed in claim 1 or 2 is characterized in that comprising the following steps:
(1) take quantitative resin by formulation ratio and each auxiliary agent disperses 5-10min in the grinding dispersion machine, lumpy material is crushed to granularity less than 5mm, and each component is fully mixed;
(2) material that mixes is sent into screw extrusion press through feeder and melt extrude, the extruder barrel temperature is 110-120 ℃, and the extruder screw temperature is 70-80 ℃, and the forcing machine rotating speed is 60-70rpm;
(3) material of extruding is pressed into thin slice through the compressing tablet cooler, and carry out cooling, then cooled chip material is broken into less sheet material, again this small thin slices is delivered to that to carry out fine powder in air classifying mill broken, finally by cyclonic separator screening, obtain the powder coating that particle diameter is 40-50 μ m after removing ultra-fine thing, foreign material, meal.
7. the preparation method of zero diopter type polyester powder coating according to claim 6, is characterized in that, the condition of cure of described powder coating is: workpiece surface temperature 170-190 ℃, and baking 10-15min.
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| CN201310056429.8A CN103160185B (en) | 2013-02-22 | 2013-02-22 | Sub-smooth type epoxy/polyester powdery paints and preparation method thereof |
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| CN201310056429.8A CN103160185B (en) | 2013-02-22 | 2013-02-22 | Sub-smooth type epoxy/polyester powdery paints and preparation method thereof |
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| CN103160185A true CN103160185A (en) | 2013-06-19 |
| CN103160185B CN103160185B (en) | 2016-05-18 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104152013A (en) * | 2014-08-10 | 2014-11-19 | 韩巧 | Powdery coating having pest-expelling effect and preparation method thereof |
| CN105925144A (en) * | 2016-06-30 | 2016-09-07 | 高海燕 | Low-temperature-curing powder paint and preparation method thereof |
| CN106280903A (en) * | 2016-08-31 | 2017-01-04 | 太仓宏璟辅龙信息科技有限公司 | A kind of white sand stricture of vagina powdery paints |
| CN106318122A (en) * | 2016-08-31 | 2017-01-11 | 太仓宏璟辅龙信息科技有限公司 | Environment-friendly high-gloss black coating |
| CN106349880A (en) * | 2016-08-31 | 2017-01-25 | 太仓宏璟辅龙信息科技有限公司 | Semi-transparent decorative coating |
| CN106398467A (en) * | 2016-08-31 | 2017-02-15 | 苏州翰晨商贸有限公司 | Black semi-transparent powdery paint |
| CN106497329A (en) * | 2016-10-28 | 2017-03-15 | 福建万安实业集团有限公司 | A kind of high adhesion force sub-smooth type powdery paints and preparation method thereof |
| CN106752765A (en) * | 2016-12-07 | 2017-05-31 | 立邦涂料（天津）有限公司 | A kind of toughening modifying low-temperature setting low-luster powdery paints, Preparation method and use |
| CN108504242A (en) * | 2017-05-19 | 2018-09-07 | 苏州权素船舶电子有限公司 | A kind of environment-friendly type high transparency coating |
| WO2020047827A1 (en) * | 2018-09-07 | 2020-03-12 | 南京天诗新材料科技有限公司 | Polymer wax powder having self-repairing function and preparation method therefor |
| CN111205730A (en) * | 2020-02-17 | 2020-05-29 | 安徽华辉塑业科技股份有限公司 | Black matt epoxy polyester type powder coating and preparation method thereof |
| CN112574651A (en) * | 2020-11-27 | 2021-03-30 | 惠州市诚业家具有限公司 | High-dyne-value baking varnish powder, preparation method thereof and baking varnish process |
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| CN101914340A (en) * | 2010-08-27 | 2010-12-15 | 成都飞亚粉漆有限公司 | High-adaptability matt powder coating |
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| CN1746238A (en) * | 2004-09-06 | 2006-03-15 | 上海盛伦化工有限公司 | Antibacterial epoxy-polyester powdery coating with fast curing under low-temperature and production thereof |
| CN101914340A (en) * | 2010-08-27 | 2010-12-15 | 成都飞亚粉漆有限公司 | High-adaptability matt powder coating |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104152013A (en) * | 2014-08-10 | 2014-11-19 | 韩巧 | Powdery coating having pest-expelling effect and preparation method thereof |
| CN105925144A (en) * | 2016-06-30 | 2016-09-07 | 高海燕 | Low-temperature-curing powder paint and preparation method thereof |
| CN106280903A (en) * | 2016-08-31 | 2017-01-04 | 太仓宏璟辅龙信息科技有限公司 | A kind of white sand stricture of vagina powdery paints |
| CN106318122A (en) * | 2016-08-31 | 2017-01-11 | 太仓宏璟辅龙信息科技有限公司 | Environment-friendly high-gloss black coating |
| CN106349880A (en) * | 2016-08-31 | 2017-01-25 | 太仓宏璟辅龙信息科技有限公司 | Semi-transparent decorative coating |
| CN106398467A (en) * | 2016-08-31 | 2017-02-15 | 苏州翰晨商贸有限公司 | Black semi-transparent powdery paint |
| CN106497329A (en) * | 2016-10-28 | 2017-03-15 | 福建万安实业集团有限公司 | A kind of high adhesion force sub-smooth type powdery paints and preparation method thereof |
| CN106752765A (en) * | 2016-12-07 | 2017-05-31 | 立邦涂料（天津）有限公司 | A kind of toughening modifying low-temperature setting low-luster powdery paints, Preparation method and use |
| CN108504242A (en) * | 2017-05-19 | 2018-09-07 | 苏州权素船舶电子有限公司 | A kind of environment-friendly type high transparency coating |
| WO2020047827A1 (en) * | 2018-09-07 | 2020-03-12 | 南京天诗新材料科技有限公司 | Polymer wax powder having self-repairing function and preparation method therefor |
| US11203686B2 (en) | 2018-09-07 | 2021-12-21 | Nanjing Tianshi New Material Technologies Co., Ltd | Polymer wax powder having a self-repairing function and preparation method thereof |
| CN111205730A (en) * | 2020-02-17 | 2020-05-29 | 安徽华辉塑业科技股份有限公司 | Black matt epoxy polyester type powder coating and preparation method thereof |
| CN112574651A (en) * | 2020-11-27 | 2021-03-30 | 惠州市诚业家具有限公司 | High-dyne-value baking varnish powder, preparation method thereof and baking varnish process |
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| CN103160185B (en) | 2016-05-18 |
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Address after: 231300 Shucheng economic and Technological Development Zone, Lu'an, Anhui Applicant after: ANHUI HUAHUI PLASTIC TECHNOLOGY CO., LTD. Address before: 231300 Shucheng economic and Technological Development Zone, Lu'an, Anhui Applicant before: Anhui Huahui Plastic Industry Science & Technology Co., Ltd. |
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Inventor after: Fei Bangzhong Inventor after: Zhou Zhenghua Inventor before: Liu Rongxing Inventor before: Fei Bangzhong |
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