CN103160185B - Sub-smooth type epoxy/polyester powdery paints and preparation method thereof - Google Patents
Sub-smooth type epoxy/polyester powdery paints and preparation method thereof Download PDFInfo
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- CN103160185B CN103160185B CN201310056429.8A CN201310056429A CN103160185B CN 103160185 B CN103160185 B CN 103160185B CN 201310056429 A CN201310056429 A CN 201310056429A CN 103160185 B CN103160185 B CN 103160185B
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Abstract
Does is the invention discloses a kind of sub-smooth type epoxy/polyester powdery paints and preparation method thereof, it to be made up of the raw material of following weight portion: epoxy resin (E-12)? 250-300, mylar (P5127) 250-300, levelling agent (GLP503)? 5-10, brightener (BLC701) 5-10, delustering agent (XG603-2A)? 5-10, styrax 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. The advantages such as the powdery paints that the present invention prepares has high rigidity, high strength, high abrasion, good heat resistance, resistance to ag(e)ing is good, gloss stability is good, hardening time is fast, environment friendly and pollution-free; Film performance excellence, the performance indications of the organic solvent each side such as acid and alkali-resistance, salt spray resistance, resistance to gasoline are all very high.
Description
Technical field
The present invention relates to a kind of powdery paints, be specifically related to a kind of sub-smooth type epoxy/polyester powdery paints and preparation method thereof.
Background technology
Powdery paints is as a kind of environment-friendly type coating, has that solvent-free, low pollution, coating process are simple, coating efficiency advantages of higher, is developed rapidly. Wherein matt powder coating is a kind of conventional powdery paints, 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. But sub-optical coating in the market exists ovenable roasting poor-performing, the shortcoming such as stable glossiness is good not, has affected the quality of sub-optical coating.
Summary of the invention
The object of the present invention is to provide a kind of sub-smooth type epoxy/polyester powdery paints and preparation method thereof, improved the gloss stability of matt powder coating, make it can not cross slowly and significantly and change with the programming rate of baking box, there is higher surperficial sophistication simultaneously.
The technical solution used in the present invention is as follows:
A kind of sub-smooth type epoxy/polyester powdery paints, it is to be made up of the raw material of following weight portion:
Epoxy resin (E-12) 250-300
Mylar (P5127) 250-300
Levelling agent (GLP503) 5-10
Brightener (BLC701) 5-10
Delustering agent (XG603-2A) 5-10
Styrax 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 powdery paints, it is to be made up of the raw material of following weight portion:
Epoxy resin (E-12) 300
Mylar (P5127) 300
Levelling agent (GLP503) 10
Brightener (BLC701) 10
Delustering agent (XG603-2A) 10
Styrax 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 400-600 order.
Described modified polyethylene wax micro mist is made by following methods: (1) by ptfe micropowder, gas-phase silica and trees ashes in mass ratio 3-5:1-2:0.5-1 add and in high-speed mixer, mix 20-30min, add again lauryl sodium sulfate, the odium stearate of 2-3% and the Silane coupling agent KH550 of 0.5-1% of 1-2%, in 70-80 DEG C of water-bath, stir 15-20min with 2000-3000rpm rotating speed, obtain mixture, for subsequent use, (2) Tissuemat E is heated to 95-98 DEG C, in the time that it is melted into fused solution completely, the mixture that adds the step (1) of 5-10% to make, after 4000-5000rpm high speed shear 10-15min, by fused solution and 150-170 DEG C of hot compressed air simultaneously by the nozzle of spray tower, under 0.6-1.2MPa pressure, spray in 0-3 DEG C of frozen drying tower, the drop of nozzle ejection is solidified rapidly, fall to entering cyclone separator, the average grain diameter of collecting is that the coarse grain of 10-20 μ m enters cyclone separator after by airslide disintegrating mill, obtaining 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 powdery paints, comprises the following steps:
(1) take quantitative resin by formulation ratio and each auxiliary agent disperses 5-10min in grinding dispersion machine, lump material is crushed to granularity and is less than 5mm, and each component is fully mixed;
(2) material mixing is sent into screw extruder through feeder and melt extrude, extruder barrel temperature is 110-120 DEG C, and extruder screw temperature is 70-80 DEG C, and extruder rotating speed is 60-70rpm;
(3) material of extruding is pressed into thin slice through compressing tablet cooler, and carry out cooling, then cooled chip material is broken into less sheet material, again this flakelet is delivered to in air classification mill, to carry out fine powder broken, finally by cyclone separator screening, obtain the powdery paints that particle diameter is 40-50 μ m after removing ultra-fine thing, foreign material, meal.
The condition of cure of described powdery paints is: workpiece surface temperature 170-190 DEG C, 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, has improved the gloss stability of matt powder coating, makes it to have higher resistance to cooking performance and surperficial sophistication, has improved the performance of matt powder coating. Also add in addition accurate ball-type silicon powder with Substitute For Partial ultra-fine barium sulfate, can effectively improve wetability and the compatibility of filler in organic matter, dispersiveness and the mobility of mixture systems are improved, increase the density and hardness of material, strengthened mechanical strength, elastic modelling quantity, ageing-resistant performance, weather resistance, heat resistance of solidfied material etc. The present invention, by Tissuemat E is carried out to modification, can improve coating wearability, resistance to marring, improves coating surface sophistication, makes that film is more smooth, texture. The advantages such as the powdery paints that the present invention prepares has high rigidity, high strength, high abrasion, good heat resistance, resistance to ag(e)ing is good, gloss stability is good, hardening time is fast, environment friendly and pollution-free; Film performance excellence, the performance indications of the organic solvent each side such as acid and alkali-resistance, salt spray resistance, resistance to gasoline are all very high.
Detailed description of the invention
A kind of sub-smooth type epoxy/polyester powdery paints, it is to be made up of the raw material of following weight portion:
300 parts of epoxy resin (E-12)
300 parts, mylar (P5127)
10 parts of levelling agents (GLP503)
10 parts of brighteners (BLC701)
10 parts of delustering agents (XG603-2A)
10 parts of styraxes
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) by ptfe micropowder, gas-phase silica and trees ashes in mass ratio 4:1.5:0.8 add and in high-speed mixer, mix 25min, add again 1.5% lauryl sodium sulfate, 2% odium stearate and 0.6% Silane coupling agent KH550, in 80 DEG C of water-baths, stir 15min with 3000rpm rotating speed, obtain mixture, for subsequent use; (2) Tissuemat E is heated to 95 DEG C, in the time that it is melted into fused solution completely, the mixture that adds 7% step (1) to make, after 5000rpm high speed shear 10min, by fused solution and 165 DEG C of hot compressed airs simultaneously by the nozzle of spray tower, under 0.8MPa pressure, spray in 1 DEG C of frozen drying tower, the drop of nozzle ejection is solidified rapidly, fall to entering cyclone separator, the average grain diameter of collecting is that the coarse grain of 15 μ m enters cyclone separator after by airslide disintegrating mill, and obtaining 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 powdery paints, comprises the following steps:
(1) take quantitative resin by formulation ratio and each auxiliary agent disperses 8min in grinding dispersion machine, lump material is crushed to granularity and is less than 5mm, and each component is fully mixed;
(2) material mixing is sent into screw extruder through feeder and melt extrude, extruder barrel temperature is 120 DEG C, and extruder screw temperature is 80 DEG C, and extruder rotating speed is 70rpm;
(3) material of extruding is pressed into thin slice through compressing tablet cooler, and carry out cooling, then cooled chip material is broken into less sheet material, again this flakelet is delivered to in air classification mill, to carry out fine powder broken, finally by cyclone separator screening, obtain the powdery paints that particle diameter is 50 μ m after removing ultra-fine thing, foreign material, meal.
Adopt electrostatic spraying construction method to be sprayed on the substrate of steel plate of sandblast pre-treatment this powdery paints, average coating thickness is 50-80 μ m, then uses electric heating constant temperature baking-curing 15min at 185 DEG C, naturally cools to room temperature, place after 24h, measure film performance. Its film performance is as follows: 10%≤glossiness (60 DEG C)≤45%, adhesive force≤1 grade, resistance to impact strength >=50Kgcm, resistance to bending≤3mm, pencil hardness >=1H.
Claims (4)
1. a sub-smooth type epoxy/polyester powdery paints, is characterized in that, it is to be made up of the raw material of following weight portion:
Epoxy resin E-12250-300
Mylar P5127250-300
Levelling agent GLP5035-10
Brightener BLC7015-10
Delustering agent XG603-2A5-10
Styrax 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;
Described modified polyethylene wax micro mist is made by following methods:
(1) by ptfe micropowder, gas-phase silica and trees ashes in mass ratio 3-5:1-2:0.5-1 add and in high-speed mixer, mix 20-30min, add again lauryl sodium sulfate, the odium stearate of 2-3% and the Silane coupling agent KH550 of 0.5-1% of 1-2%, in 70-80 DEG C of water-bath, stir 15-20min with 2000-3000rpm rotating speed, obtain mixture, for subsequent use;
(2) Tissuemat E is heated to 95-98 DEG C, in the time that it is melted into fused solution completely, the mixture that adds the step (1) of 5-10% to make, after 4000-5000rpm high speed shear 10-15min, by fused solution and 150-170 DEG C of hot compressed air simultaneously by the nozzle of spray tower, under 0.6-1.2MPa pressure, spray in 0-3 DEG C of frozen drying tower, the drop of nozzle ejection is solidified rapidly, fall to entering cyclone separator, the average grain diameter of collecting is that the coarse grain of 10-20 μ m enters cyclone separator after by airslide disintegrating mill, obtaining particle diameter is the modified polyethylene wax micro mist of 1-3 μ m.
2. sub-smooth type epoxy/polyester powdery paints according to claim 1, is characterized in that, it is to be made up of the raw material of following weight portion:
Epoxy resin E-12300
Mylar P5127300
Levelling agent GLP50310
Brightener BLC70110
Delustering agent XG603-2A10
Styrax 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 powdery paints according to claim 1 and 2, is characterized in that, the granularity of described accurate ball-type silicon powder is 400-600 order.
4. sub-smooth type epoxy/polyester powdery paints according to claim 1, is characterized in that, described ptfe micropowder particle diameter is 2-4 μ m; Described gas-phase silica particle diameter is 30-40nm.
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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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| CN103160185B true CN103160185B (en) | 2016-05-18 |
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| 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 |
| 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 |
| 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 |
| CN106398467A (en) * | 2016-08-31 | 2017-02-15 | 苏州翰晨商贸有限公司 | Black semi-transparent powdery paint |
| 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 |
| 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 |
| 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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| 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 |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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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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