CN1422915A - Weathering-resistant powder coating - Google Patents
Weathering-resistant powder coating Download PDFInfo
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- CN1422915A CN1422915A CN 01130021 CN01130021A CN1422915A CN 1422915 A CN1422915 A CN 1422915A CN 01130021 CN01130021 CN 01130021 CN 01130021 A CN01130021 A CN 01130021A CN 1422915 A CN1422915 A CN 1422915A
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- powder coating
- acrylic resin
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Abstract
The invention discloses an element-resistance powder dope, its formula includes: carboxyl acrylic acid resin whose carboxyl value is 40-50 mg/a, tetra-methoxyl urea, p-methylbenzene sulphonic acid closed by dimethyl ethanol, acrylate-type flowing agent, inorganic filling, paint, benzoin and so on. It changes the quantity of the toluene sulfonic acid or the inorganic filling, white can adjust the density and thickness of the texture and third dimension.
Description
Technical field:
The present invention relates to a kind of Weather-resisting powder coating, this powder coating is applicable to the surface applied of metallic substance.
Technical background:
The Weather-resisting powder coating that is applied to the metallic substance coating at present is mainly polyester and polyurethane-type powder coating, has better weather energy, mechanical property, and can form common wrinkle, sand streak texture.For satisfying in higher service requirements aspect weathering resistance and the grain decorating, the present invention has designed a kind of acrylic type powder coating, weather resistance improves greatly, QUV-B (accelerated light ageing test) guarantor light rate was enhanced to more than 90% from 50% of polyester powder coating in 480 hours, and this powder coating has turtleback Polygons texture attractive in appearance, and unique decorative effect can be provided.
Summary of the invention:
The present invention's prescription consists of: a, hydroxyl value is 45～50 parts of b of Hydroxylated acrylic resin of 40～50mg/a, 8～12 parts of c of tetramethoxymethylglycoluril, (with a. acrylic resin is that carrier disperses to the tosic acid of dimethyl ethanol sealing, mass percent concentration is 2.5%) 30～45 parts of d, acrylate type flow agent 0.8～1.3e, mineral filler is as 35～55 parts of f of barium sulfate, an amount of pigment g, 0.8～1.5 part of st-yrax
Production technique is: a, form accurate weighing material by prescription, place high-speed mixer to mix 6～8 minutes; B, mixture are extruded under 100～110 ℃ temperature with the powder coating forcing machine; It is that median size is 40～50 microns a powder granule that c, extruded stock are pulverized with the powder coating pulverizer; D, powder sieve with 180 eye mesh screens, are qualified product by thing.
Embodiment:
The embodiment of the invention 1:
Adopt prescription to form: a, hydroxyl value is 45 parts of b of Hydroxylated acrylic resin of 40～50mg/a, 8 parts of c of tetramethoxymethylglycoluril, (with a. acrylic resin is that carrier disperses to the tosic acid of dimethyl ethanol sealing, mass percent concentration is 2.5%) 40 parts of d, 1.1 parts of e of acrylate type flow agent, mineral filler is as 45 parts of f of barium sulfate, 1 part of g of carbon black, 1.0 parts of st-yraxes
By above-mentioned production technique production, adopt high pressure electrostatic painting, voltage is 60kv, and average coating thickness is 60～80 microns, and condition of cure is: 190 ℃ (workpiece temperature) baking 20 minutes.
Main coating performance index is: shock resistance 〉=50kgcm bending property≤2mmQUV-B (480h) protects light rate 〉=90%
Claims (2)
1. Weather-resisting powder coating, it is characterized in that formulation for coating material comprises that hydroxyl value is the Hydroxylated acrylic resin (40～50 parts) of 40～50mg/a, tetramethoxymethylglycoluril (8～12 parts), (with a. acrylic resin is that carrier disperses to the tosic acid of dimethyl ethanol sealing, mass percent concentration is 2.5%) (30～45 parts), acrylate type flow agent (0.8～1.3 part), mineral filler---barium sulfate (35～55 parts), an amount of pigment, st-yrax (0.8～1.5 part).
2. coating according to claim 1, its feature adopts following spraying coating process: use high pressure electrostatic painting (60～90kv), 60～80 microns of average coating thicknesses, film maximum and minimum thickness difference are less than 20 microns, and condition of cure is: 190 ℃ of bakings of workpiece temperature 20 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011300213A CN1147550C (en) | 2001-12-03 | 2001-12-03 | Weathering-resistant powder coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011300213A CN1147550C (en) | 2001-12-03 | 2001-12-03 | Weathering-resistant powder coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1422915A true CN1422915A (en) | 2003-06-11 |
| CN1147550C CN1147550C (en) | 2004-04-28 |
Family
ID=4669652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011300213A Expired - Fee Related CN1147550C (en) | 2001-12-03 | 2001-12-03 | Weathering-resistant powder coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1147550C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103289541A (en) * | 2013-05-30 | 2013-09-11 | 漳州市万诚粉体涂料有限公司 | Outdoor powdered cobweb coating and preparation process thereof |
| CN103483953A (en) * | 2013-09-03 | 2014-01-01 | 蚌埠市鸿安精密机械有限公司 | Weather-resistant powder paint |
| CN103937383A (en) * | 2014-04-11 | 2014-07-23 | 广西平果宝信涂料有限公司 | Sand textured weather-resistant powder coating with high bending resistance and preparation method thereof |
| CN104610835A (en) * | 2015-02-10 | 2015-05-13 | 宁波高新区巴艺新材料科技有限公司 | Weather-resistant powder paint |
| CN112143315A (en) * | 2020-09-28 | 2020-12-29 | 湖南连心科技有限公司 | Powder coating with moire effect and preparation method thereof |
-
2001
- 2001-12-03 CN CNB011300213A patent/CN1147550C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103289541A (en) * | 2013-05-30 | 2013-09-11 | 漳州市万诚粉体涂料有限公司 | Outdoor powdered cobweb coating and preparation process thereof |
| CN103483953A (en) * | 2013-09-03 | 2014-01-01 | 蚌埠市鸿安精密机械有限公司 | Weather-resistant powder paint |
| CN103937383A (en) * | 2014-04-11 | 2014-07-23 | 广西平果宝信涂料有限公司 | Sand textured weather-resistant powder coating with high bending resistance and preparation method thereof |
| CN104610835A (en) * | 2015-02-10 | 2015-05-13 | 宁波高新区巴艺新材料科技有限公司 | Weather-resistant powder paint |
| CN104610835B (en) * | 2015-02-10 | 2017-02-22 | 金华联创塑粉科技有限公司 | Weather-resistant powder paint |
| CN112143315A (en) * | 2020-09-28 | 2020-12-29 | 湖南连心科技有限公司 | Powder coating with moire effect and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1147550C (en) | 2004-04-28 |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |