CN102181223A - Super leveling mirror surface powder coating - Google Patents
Super leveling mirror surface powder coating Download PDFInfo
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- CN102181223A CN102181223A CN2011101381558A CN201110138155A CN102181223A CN 102181223 A CN102181223 A CN 102181223A CN 2011101381558 A CN2011101381558 A CN 2011101381558A CN 201110138155 A CN201110138155 A CN 201110138155A CN 102181223 A CN102181223 A CN 102181223A
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Abstract
The invention relates to a super leveling mirror surface powder coating that comprises the following components according to parts by weight: 40-55 parts of modified polyurethane resin; 20-25 parts of phenolic aldehyde modified cross linking agent; 20-25 parts of modified filler; 1.0-1.5 parts of leveling agent; 0.5-1 part of degassing adjuvant; 1-2 parts of function adjuvant; and 0.5-1 part of pigment. The super leveling mirror surface powder coating of the formula has good leveling property, and nice in surface gloss after spraying. The coating greatly improves the surface decoration and attractiveness of spraying products, and is widely applied to surface spraying of electric household appliances and decorative materials.
Description
Technical field
The present invention relates to a kind of coating, especially relate to a kind of super levelling powder coating, belong to the chemistry painting industry technical field.
Background technology
Traditional powder coating, its surperficial flow leveling is relatively poor, and glossiness is not high, so it is with respect to water-borne coatings, and the decorative surface effect is relatively poor.
Summary of the invention
Be to solve the deficiencies in the prior art, the object of the present invention is to provide a kind of good leveling property, super levelling minute surface powder coating that glossiness is high.
For achieving the above object, the present invention is achieved by the following technical solutions:
A kind of super levelling minute surface powder coating, they parts by weight that comprise following component and each component are:
Modified polyurethane resin 40-55 part;
Phenol aldehyde modified linking agent 20-25 part;
Modified filler 20-25 part;
Flow agent 1.0-1.5 part;
Degassing auxiliary agent 0.5-1 part;
Functional agent 1-2 part;
Pigment 0.5-1 part.
Interim, the softening temperature of above-mentioned modified polyurethane resin is 92-105 ℃, and second-order transition temperature is 55-67 ℃.
Above-mentioned modified polyurethane resin carries out modification by the liquid flow agent of interpolation in urethane resin and obtains.
Above-mentioned phenol aldehyde modified linking agent is to be added with phenolic resin modified crosslinking and curing agent.
Above-mentioned modified filler is the modification process white, and it carries out coating modification to it by epoxy crosslinking agent and forms under 60-80 ℃ of condition.
Above-mentioned flow agent is the import flow agent, and its outward appearance is a white powder, and activity is 66-68%, and density is 0.45-0.6g/cm
3
Above-mentioned degassing auxiliary agent is st-yrax (bitter almond oil camphor), and its outward appearance is white or micro-yellow powder (or crystal), and fusing point is 134-138 ℃, purity: fugitive constituent 〉=99.5% :≤0.5%.
Above-mentioned functional agent is any one or more the mixture in wax powder, leveling auxiliary agent, the aluminum oxide.
The invention has the beneficial effects as follows: the super levelling minute surface powder coating with prescription of the present invention has good levelling property and after spraying, surface gloss is good, improved the surface decoration and the aesthetic feeling of sprayed product greatly, it is widely used in the spraying on household electrical appliance and decorative material surface.
Embodiment
Below in conjunction with specific embodiment the present invention is done concrete introduction.
Material selection: the softening temperature of modified polyurethane resin is 92-105 ℃, and second-order transition temperature is 55-67 ℃, and described modified polyurethane resin carries out modification and obtains by add liquid flow agent in urethane resin;
Phenol aldehyde modified linking agent is to be added with phenolic resin modified crosslinking and curing agent;
Modified filler is selected the modification process white for use, and it carries out coating modification to it by epoxy crosslinking agent and forms under the 60-80 degrees celsius;
Flow agent is selected the flow agent of import for use, and its outward appearance is a white powder, and activity is 66-68%, and density is 0.45-0.6g/cm
3, it has the following advantages: the levelling coating surface that (1) is fabulous, improve coating film gloss and mapping degree; (2) eliminate shrinkage cavity, pin hole, defectives such as flake; (3) promote wetting to base material, reduce tangerine peel; (4) do not influence the recoat tack; (5) fabulous stability and weathering resistance.
Degassing selection of auxiliary st-yrax (bitter almond oil camphor), its outward appearance is white or micro-yellow powder (or crystal), fusing point is 134-138 ℃, purity: fugitive constituent 〉=99.5% :≤0.5%, it is widely used in all types of powder thermosettings, can eliminate the pin hole that powder coating produces in solidification process, shrinkage cavity, drawbacks such as bubble, can also with the good mixing of flow agent, improve film coated surface tension force, regulate film coated surface levelling degree.
Pigment is selected the tinting strength height for use, heatproof excellence, the pigment that oil number is little.
Functional agent is a leveling auxiliary agent, st-yrax, the mixture of any one or more in the aluminum oxide.
Embodiment 1: super levelling minute surface powder coating, its weight percent that contains following component and each component is respectively: 1 part of 54 parts of modified polyurethane resins, 20 parts of phenol aldehyde modified linking agents, 22 parts of modification process whites, 1.5 parts of flow agents, 0.6 part of st-yrax, 1 part of pigment and auxiliary agent (comprising leveling auxiliary agent and st-yrax).
Embodiment 2: super levelling minute surface powder coating, its weight percent that contains following component and each component is respectively: 48 parts of modified polyurethane resins, 22 parts of phenol aldehyde modified linking agents, 20 parts of modification process whites, 1.0 parts of flow agents, 1 part of st-yrax, 0.8 part of pigment and auxiliary agent (comprise leveling auxiliary agent, st-yrax, aluminum oxide) 2 part.
Embodiment 3: 1.5 parts of 40 parts of modified polyurethane resins, 25 parts of phenol aldehyde modified linking agents, 25 parts of modification process whites, 1.3 parts of flow agents, 0.5 part of st-yrax, 0.5 part of pigment and auxiliary agents (aluminum oxide).
The preparation method of the described super levelling minute surface powder coating of the foregoing description 1-3 is as follows:
(1) carries out pre-mixing according to the described prescription weighing of embodiment 1-3 other each components except that pigment, and to the raw material that takes by weighing;
(2) the intact material of pre-mixing is melt extruded mixing;
(3) the above-mentioned material of extruding is cooled off, carry out coarse reduction subsequently, obtain uniform flap;
(4) it is broken the material of coarse reduction to be carried out fine powder, obtains the powder of meso-position radius 60-65 μ m;
(5) material that fine powder is broken joins and carries out high speed rotating in the high-speed mixer with temperature control chuck and mix; Wherein the frequency of high speed rotating is more than or equal to 40 hertz;
(6) under high-speed stirring, during the fine powder that pigment is joined high speed rotating when temperature reaches second-order transition temperature 2-3 ℃ that is lower than powder minces and expects, after continuation subsequently heats up and reaches second-order transition temperature, with speed drop to 25 hertz, and to tank body water filling cooling to guarantee that temperature is not higher than 3 ℃ of second-order transition temperatures, continue to mix 4 minutes;
(7) blowing cooling obtains product.
Wherein, the performance perameter of filming of the condition of cure of the super levelling minute surface powder coating described in the embodiment 1-3 embodiment and formation is as shown in table 1:
The foregoing description does not limit the present invention in any form, and all employings are equal to the technical scheme that mode obtained of replacement or equivalent transformation, all drop in protection scope of the present invention.
Claims (8)
1. super levelling minute surface powder coating, they parts by weight that comprise following component and each component are:
Modified polyurethane resin 40-55 part;
Phenol aldehyde modified linking agent 20-25 part;
Modified filler 20-25 part;
Flow agent 1.0-1.5 part;
Degassing auxiliary agent 0.5-1 part;
Functional agent 1-2 part;
Pigment 0.5-1 part.
2. super levelling minute surface powder coating according to claim 1 is characterized in that the softening temperature of described modified polyurethane resin is 92-105 ℃, and second-order transition temperature is 55-67 ℃.
3. super levelling minute surface powder coating according to claim 1 and 2 is characterized in that, described modified polyurethane resin carries out modification by add liquid flow agent in urethane resin.
4. super levelling minute surface powder coating according to claim 1 is characterized in that described phenol aldehyde modified linking agent is to be added with phenolic resin modified crosslinking and curing agent.
5. super levelling minute surface powder coating according to claim 1 is characterized in that described modified filler is the modification process white, and it carries out coating modification to it by epoxy crosslinking agent and forms under 60-80 ℃ of condition.
6. super levelling minute surface powder coating according to claim 1 is characterized in that the activity of described flow agent is 66-68%, and density is 0.45-0.6g/cm
3
7. super levelling minute surface powder coating according to claim 1 is characterized in that described degassing auxiliary agent is a st-yrax, and its fusing point is 134-138 ℃, purity: fugitive constituent 〉=99.5% :≤0.5%.
8. super levelling minute surface powder coating according to claim 1 is characterized in that, described functional agent is any one or more the mixture in wax powder, leveling auxiliary agent, the aluminum oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110138155.8A CN102181223B (en) | 2011-05-26 | 2011-05-26 | Super leveling mirror surface powder coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110138155.8A CN102181223B (en) | 2011-05-26 | 2011-05-26 | Super leveling mirror surface powder coating |
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| Publication Number | Publication Date |
|---|---|
| CN102181223A true CN102181223A (en) | 2011-09-14 |
| CN102181223B CN102181223B (en) | 2014-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110138155.8A Active CN102181223B (en) | 2011-05-26 | 2011-05-26 | Super leveling mirror surface powder coating |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104974653A (en) * | 2015-06-23 | 2015-10-14 | 安徽华辉塑业科技有限公司 | Weather-resistant super-leveling powder coating |
| WO2022062402A1 (en) * | 2020-09-24 | 2022-03-31 | 浙江华彩新材料有限公司 | High-hardness easy-to-clean powder coating and preparation method therefor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101519546A (en) * | 2009-03-25 | 2009-09-02 | 杜邦华佳化工有限公司 | Powder coating capable of being thin coated and preparation process thereof |
-
2011
- 2011-05-26 CN CN201110138155.8A patent/CN102181223B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101519546A (en) * | 2009-03-25 | 2009-09-02 | 杜邦华佳化工有限公司 | Powder coating capable of being thin coated and preparation process thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104974653A (en) * | 2015-06-23 | 2015-10-14 | 安徽华辉塑业科技有限公司 | Weather-resistant super-leveling powder coating |
| WO2022062402A1 (en) * | 2020-09-24 | 2022-03-31 | 浙江华彩新材料有限公司 | High-hardness easy-to-clean powder coating and preparation method therefor |
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| Publication number | Publication date |
|---|---|
| CN102181223B (en) | 2014-08-27 |
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