CN103160195B - Low temperature curing type epoxy/polyester powdery paints - Google Patents
Low temperature curing type epoxy/polyester powdery paints Download PDFInfo
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- CN103160195B CN103160195B CN201310056478.1A CN201310056478A CN103160195B CN 103160195 B CN103160195 B CN 103160195B CN 201310056478 A CN201310056478 A CN 201310056478A CN 103160195 B CN103160195 B CN 103160195B
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Abstract
The invention discloses a kind of low temperature curing type epoxy/polyester powdery paints.It is made up of the raw material of following weight portion: epoxy resin (E-12) 250-300, polyester resin (P6060) 350-400, levelling agent (PV88) 3-5, brightener (BLC701B) 3-5, Benzoinum 4-6,2-benzylimidazoline 5-10,2-methylimidazole 4-6, high light barium sulfate 50-80, quasi-ball-type silicon powder 40-60, hard paraffin 5-8, organic coated titanium dioxide 280-320.The advantages such as the powdery paints that the present invention prepares has high rigidity, high intensity, heat-resist, resistance to ag(e)ing good, hardening time is fast, environment friendly and pollution-free.Film performance is excellent, and the performance indications of the organic solvent each side such as acid and alkali-resistance, salt spray resistance, resistance to gasoline are all significantly high, and particularly its paint film is plentiful, gloss is especially prominent.
Description
Technical field
The present invention relates to a kind of powdery paints, be specifically related to a kind of low temperature curing type epoxy/polyester powdery paints.
Background technology
Powdery paints as a kind of environment-friendly type coating, have solvent-free, low stain, coating process simple, coating efficiency advantages of higher, be developed rapidly.And polyester/epoxy mixed powder coating is because of its each side good combination property, and become the leading products of powdery paints.But existing polyester/epoxide powder coating in plane effect as less desirable in levelability, the definition of gloss and the bright in luster of high chroma, it is difficult to meeting special workpiece his-and-hers watches mask has the requirement of more high gloss or high levelling.
Summary of the invention
It is an object of the invention to provide a kind of low temperature curing type epoxy/polyester powdery paints, solve epoxy/polyester powdery paints levelability and the problem of gloss deficiency, and color is more bright-coloured.
The technical solution used in the present invention is as follows:
A kind of highlight type epoxy/polyester powdery paints, it is made up of the raw material of following weight portion:
Epoxy resin (E-12) 250-300
Polyester resin (P6060) 350-400
Levelling agent (PV88) 3-5
Brightener (BLC701B) 3-5
Benzoinum 4-6
2-benzylimidazoline 5-10
2-methylimidazole 4-6
High light barium sulfate 50-80
Quasi-ball-type silicon powder 40-60
Hard paraffin 5-8
Organic coated titanium dioxide 280-320.
Preferably, a kind of highlight type epoxy/polyester powdery paints, it is made up of the raw material of following weight portion:
Epoxy resin (E-12) 240
Polyester resin (P6060) 360
Levelling agent (PV88) 5
Brightener (BLC701B) 5
Benzoinum 5
2-benzylimidazoline 8
2-methylimidazole 6
High light barium sulfate 60
Quasi-ball-type silicon powder 40
Hard paraffin 5
Organic coated titanium dioxide 300.
The granularity of described quasi-ball-type silicon powder is 400-600 order.
Described organic coated titanium dioxide is prepared by following methods: add 100-150 part water in the reactor with high speed agitator, 5-8 part polyethylene glycol oxide, 4-6 part trimethylolethane, 3-5 part sodium laurylsulfate, 2-3 part sodium stearate, 5-8min is stirred under 2000-3000rpm, make its mix homogeneously, add the 100-120 part titanium dioxide making beating 20-30min through Raymond mill, stop stirring, Titanium dioxide slurry is reached within 0.3 μm through sand mill defibrination to particle diameter, then Titanium dioxide slurry is toasted at 120-130 DEG C 5-8h, finely ground one-tenth powder is pulverized after drying.
The preparation method of highlight type epoxy/polyester powdery paints, comprises the following steps:
(1) weighing quantitative resin and each auxiliary agent by formulation ratio and disperse 5-8min in grinding dispersion machine, lump material is crushed to granularity less than 5mm, makes each component be sufficiently mixed uniformly；
(2) through feeder, the material of mix homogeneously being sent into screw extruder to melt extrude, extruder barrel temperature is 100-120 DEG C, and extruder screw temperature is 80-90 DEG C, and extruder rotating speed is 70-80rpm；
(3) material of extrusion is pressed into thin slice through tabletting cooler, and cool down, then the chip material after cooling is broken into less sheet material, again this flakelet is delivered to air classification mill in carry out finely divided, sieve through cyclone separator after, after removing ultra-fine thing, foreign material, coarse powder, obtain the powdery paints that particle diameter is 40-50 μm.
The condition of cure of described powdery paints is: workpiece temperature 170-190 DEG C, toasts 15-20min.
Beneficial effects of the present invention:
The present invention optimization by formulation for coating material, cooperating of different auxiliary agent, with the addition of brightener while using levelling agent, finally solves coating levelability and the phenomenon of gloss deficiency, the high glaze height levelling powdery paints of mirror effect can be made by this formula, and color is more bright-coloured.Additionally also added quasi-ball-type silicon powder with Substitute For Partial height light barium sulfate, filler wettability in Organic substance and affinity can be effectively increased, improve dispersibility and the mobility of mixture systems, add the density and hardness of material, enhance the mechanical strength of solidfied material, elastic modelling quantity, ageing-resistant performance, weather resistance, heat resistance etc..The present invention is by carrying out organic coated to titanium dioxide, the levelability of titanium dioxide, dispersion stabilization, heat resistance can be improved, make titanium dioxide have good moistening and greasy property in high temperature system, it is ensured that titanium dioxide can equably and Stable distritation in polymeric system.The advantages such as the powdery paints that the present invention prepares has high rigidity, high intensity, heat-resist, resistance to ag(e)ing good, hardening time is fast, environment friendly and pollution-free.Film performance is excellent, and the performance indications of the organic solvent each side such as acid and alkali-resistance, salt spray resistance, resistance to gasoline are all significantly high, and particularly its paint film is plentiful, gloss is especially prominent.
Detailed description of the invention
A kind of highlight type epoxy/polyester powdery paints, it is made up of the raw material of following weight portion:
Epoxy resin (E-12) 240 parts
360 parts of polyester resin (P6060)
Levelling agent (PV88) 5 parts
Brightener (BLC701B) 5 parts
Benzoinum 5 parts
2-benzylimidazoline 8 parts
2-methylimidazole 6 parts
60 parts of high light barium sulfate
Quasi-ball-type silicon powder 40 parts
Hard paraffin 5 parts
Organic coated titanium dioxide 300 parts.
Wherein, the granularity of described quasi-ball-type silicon powder is 500 orders.
Described organic coated titanium dioxide is prepared by following methods: add 120 parts of water, 6 parts of polyethylene glycol oxides, 6 parts of trimethylolethanes, 4 parts of sodium laurylsulfates, 2.5 parts of sodium stearates in the reactor with high speed agitator, stir 5min at 3,000 rpm, make its mix homogeneously, add 100 parts of titanium dioxides making beating 20min through Raymond mill, stop stirring, Titanium dioxide slurry is reached within 0.3 μm through sand mill defibrination to particle diameter, then Titanium dioxide slurry is toasted at 120 DEG C 8h, after drying, pulverizes finely ground one-tenth powder.
The preparation method of highlight type epoxy/polyester powdery paints, comprises the following steps:
(1) weighing quantitative resin and each auxiliary agent by formulation ratio and disperse 6min in grinding dispersion machine, lump material is crushed to granularity less than 5mm, makes each component be sufficiently mixed uniformly；
(2) through feeder, the material of mix homogeneously being sent into screw extruder to melt extrude, extruder barrel temperature is 110 DEG C, and extruder screw temperature is 85 DEG C, and extruder rotating speed is 80rpm；
(3) material of extrusion is pressed into thin slice through tabletting cooler, and cool down, then the chip material after cooling is broken into less sheet material, again this flakelet is delivered to air classification mill in carry out finely divided, sieve through cyclone separator after, after removing ultra-fine thing, foreign material, coarse powder, obtain the powdery paints that particle diameter is 50 μm.
Electrostatic spraying construction method is adopted to be sprayed on the substrate of steel plate of sandblasting pre-treatment this powdery paints, average coating thickness is 60-80 μm, then uses electric heating constant temperature baking-curing 18min at 180 DEG C, naturally cools to room temperature, after placing 24h, measure film performance.Its film performance is as follows: glossiness (60 DEG C) >=75%, adhesive force≤1 grade, resistance to impact strength >=50Kg cm, resist bending≤2mm, pencil hardness >=1H.
Claims (2)
1. a low temperature curing type epoxy/polyester powdery paints, it is characterised in that it is made up of the raw material of following weight portion:
Epoxy resin E-12250-300
Polyester resin P6060350-400
Levelling agent PV883-5
Brightener BLC701B3-5
Benzoinum 4-6
2-benzylimidazoline 5-10
2-methylimidazole 4-6
High light barium sulfate 50-80
Quasi-ball-type silicon powder 40-60
Hard paraffin 5-8
Organic coated titanium dioxide 280-320；
The granularity of described quasi-ball-type silicon powder is 400-600 order；
Described organic coated titanium dioxide is prepared by following methods: add 100-150 part water in the reactor with high speed agitator, 5-8 part polyethylene glycol oxide, 4-6 part trimethylolethane, 3-5 part sodium laurylsulfate, 2-3 part sodium stearate, 5-8min is stirred under 2000-3000rpm, make its mix homogeneously, add the 100-120 part titanium dioxide making beating 20-30min through Raymond mill, stop stirring, Titanium dioxide slurry is reached within 0.3 μm through sand mill defibrination to particle diameter, then Titanium dioxide slurry is toasted at 120-130 DEG C 5-8h, finely ground one-tenth powder is pulverized after drying；
The preparation method of described low temperature curing type epoxy/polyester powdery paints, comprises the following steps:
(1) weighing quantitative resin and each auxiliary agent by formulation ratio and disperse 5-8min in grinding dispersion machine, lump material is crushed to granularity less than 5mm, makes each component be sufficiently mixed uniformly；
(2) through feeder, the material of mix homogeneously being sent into screw extruder to melt extrude, extruder barrel temperature is 100-120 DEG C, and extruder screw temperature is 80-90 DEG C, and extruder rotating speed is 70-80rpm；
(3) material of extrusion is pressed into thin slice through tabletting cooler, and cool down, then the chip material after cooling is broken into less sheet material, again this flakelet is delivered to air classification mill in carry out finely divided, sieve through cyclone separator after, after removing ultra-fine thing, foreign material, coarse powder, obtain the powdery paints that particle diameter is 40-50 μm；
The condition of cure of described powdery paints is: workpiece temperature 170-190 DEG C, toasts 15-20min.
2. low temperature curing type epoxy/polyester powdery paints according to claim 1, it is characterised in that it is made up of the raw material of following weight portion:
Epoxy resin E-12240
Polyester resin P6060360
Levelling agent PV885
Brightener BLC701B5
Benzoinum 5
2-benzylimidazoline 8
2-methylimidazole 6
High light barium sulfate 60
Quasi-ball-type silicon powder 40
Hard paraffin 5
Organic coated titanium dioxide 300.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310056478.1A CN103160195B (en) | 2013-02-22 | 2013-02-22 | Low temperature curing type epoxy/polyester powdery paints |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310056478.1A CN103160195B (en) | 2013-02-22 | 2013-02-22 | Low temperature curing type epoxy/polyester powdery paints |
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| CN103160195A CN103160195A (en) | 2013-06-19 |
| CN103160195B true CN103160195B (en) | 2016-06-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107236419A (en) * | 2017-07-18 | 2017-10-10 | 东莞众迪和粉末涂料有限公司 | Ceramics powdery paints |
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| CN103965735A (en) * | 2014-05-06 | 2014-08-06 | 张家港江南粉末涂料有限公司 | Fast curing automobile balance part powder coating and production method thereof |
| CN104119784A (en) * | 2014-06-27 | 2014-10-29 | 南京屏湖粉末材料有限公司 | Epoxy/ polyester mixed powder coating |
| CN104277685A (en) * | 2014-10-31 | 2015-01-14 | 安徽神剑新材料股份有限公司 | Powder coating |
| CN105086749A (en) * | 2015-08-07 | 2015-11-25 | 安徽欧瑞达电器科技有限公司 | Coating for air energy water heater and preparing method thereof |
| CN106398481A (en) * | 2016-06-01 | 2017-02-15 | 安徽华辉塑业科技股份有限公司 | Oil contamination-preventing paint for frame of electric appliance |
| CN105925144A (en) * | 2016-06-30 | 2016-09-07 | 高海燕 | Low-temperature-curing powder paint and preparation method thereof |
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| CN106433394A (en) * | 2016-08-31 | 2017-02-22 | 苏州翰晨商贸有限公司 | Indoor white highlight powder coating |
| CN106433395A (en) * | 2016-08-31 | 2017-02-22 | 苏州翰晨商贸有限公司 | Indoor red high-gloss powder coating |
| CN106381012A (en) * | 2016-08-31 | 2017-02-08 | 太仓宏璟辅龙信息科技有限公司 | Yellow highlight paint |
| CN106280929A (en) * | 2016-08-31 | 2017-01-04 | 苏州翰晨商贸有限公司 | A kind of low-temperature setting extinction powder coating |
| CN109651939A (en) * | 2018-12-30 | 2019-04-19 | 江南载福粉末涂料（张家港）有限公司 | A kind of super levelling powdery paints and preparation method thereof |
| CN110628066B (en) * | 2019-08-14 | 2020-09-04 | 佛山宜可居新材料有限公司 | Carbon fiber prepreg product and coating method thereof |
| CN112210276A (en) * | 2020-10-19 | 2021-01-12 | 河北盛可居装饰材料有限公司 | MDF low-temperature powder and preparation method thereof |
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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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