Fluorine-silicon modified epoxy resin power paint

A technology of epoxy resin powder and fluorosilicone modification, which is applied in powder coatings, coatings, etc., can solve the problems of high temperature resistance and insufficient pollution resistance, achieve bright appearance, improve high temperature resistance, and isolate damage

Inactive Publication Date: 2010-09-22
上海雄狮粉末科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is to provide a high temperature resistant and anti-pollution epoxy powder coating for the lack of high temperature resistance and pollution resistance of ordinary epoxy resin powder coatings.

Method used

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  • Fluorine-silicon modified epoxy resin power paint

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0034] The coating made of the fluorine-silicon modified epoxy resin powder coating obtained according to the above preparation method was tested and measured for various performance indicators, including: coating appearance measurement, coating thickness measurement, impact strength test, positive and recoil Test, Pencil Hardness Test, Bending Hardness Test, Adhesion Test, Salt Spray Resistance Test, Cupping Test, Determination of Heat Resistance of Paints and Varnishes with Reference to GB / T1735-2009, Determination of Contact Angle, Acid Resistance Test and Alkali Resistance sex test.

[0035] In the above test and determination, the contact angle measurement adopts German Data physics OCA20 video optical contact angle measuring instrument, the test method is: the contact medium adopts deionized water, the droplet volume is 3 μ L, the droplet is mixed with the fluorosilicon modified epoxy of the present invention The coating made of resin powder coating was measured after 30...

Embodiment 1

[0037] Component Component content (weight%)

[0038] Fluorine modified acrylic epoxy resin 20

[0039] Silicone resin 40

[0040] Nano gas silica 0.5

[0041] Anti-Yellowing Benzoin 1

[0042] Polyacrylate leveling agent 1

[0043] Silica 15

[0044] Mica powder 20

[0045] Flow enhancer 0.2

[0046] Zinc iron yellow pigment 1.8

[0047] After the above-mentioned components are mixed uniformly, the screw extruder is mixed and melted at 90°C, extruded, tableted, crushed, and sieved through a 160-mesh screen to obtain a light yellow fluorosilicone modified epoxy resin powder coating.

[0048] The coatings made of the above-mentioned fluorine-silicon modified epoxy resin powder coatings were tested and determined for various performance indicators, and the results are as follows:

[0049] Appearance of coating: smooth, no shrinkage cavity, no pinhole;

[0050] Coating thickness: 40-60um;

[0051] Impact strength: 50kg·cm;

[0052] Positive recoil test: pass;

[0053] P...

Embodiment 2

[0063] Component Component content (weight%)

[0064] Fluorine modified acrylic epoxy resin 40

[0065] Silicone resin 20

[0066] Nano gas silica 0.6

[0067] Anti-Yellowing Benzoin 1.5

[0068] Polyacrylate leveling agent 2

[0069] Silica 20

[0070] Wollastonite 12

[0071] Flow enhancer 0.9

[0072] Zinc iron yellow pigment 2

[0073] After the above-mentioned components are mixed evenly, the screw extruder is mixed and melted at 100°C, extruded, pressed into tablets, crushed, and sieved through a 160-mesh sieve to obtain a light yellow fluorosilicone modified epoxy resin powder coating.

[0074] The coatings made of the above-mentioned fluorine-silicon modified epoxy resin powder coatings were tested and determined for various performance indicators, and the results are as follows:

[0075] Appearance of coating: smooth, no shrinkage cavity, no pinhole;

[0076] Coating thickness: 40-60um;

[0077] Impact strength: 50kg·cm;

[0078] Positive recoil test: pass;...

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Abstract

The invention discloses a fluorine-silicon modified epoxy resin power paint, which comprises the following raw materials in percentage by weight: 20-60% of fluorine modified methacrylic acid epoxy resin, 5-40% of organic silicon resin, 0.1-2% of nano fumed silica, 10-50% of heat-resistant filler, 1-15% of heat-resistant paint and 0.5-3% of leveling agent. Compared with the prior art, the heat resistant performance and the pollution resistant performance of the coating made of the fluorine-silicon modified epoxy resin power paint are both improved, the coating can be used in the environment at the temperature of 500 DEG C, and static contact angle to water at normal temperature can reach 100 degrees; and additionally, the fluorine-silicon modified epoxy resin power paint has the advantages of simple processing technology, low cost, and bright and smooth appearance of the coating, and can be thinly coated.

Description

technical field [0001] The invention relates to the technical field of powder coatings, in particular to a high temperature resistant and anti-pollution powder coating. Background technique [0002] High-temperature resistant and anti-pollution coatings refer to coatings that can maintain proper physical and mechanical properties and play a protective role under long-term high temperature conditions above 200°C. . High-temperature resistant and anti-pollution coatings can be widely used on various components, especially for components with high working temperature and high anti-pollution requirements. Surface coating with high-temperature and anti-pollution coatings can ensure that the coating film does not change color or fall off for a long time And not be polluted, such as household appliances, heat exchangers, high-temperature furnaces, petroleum cracking equipment, automobiles and other components. [0003] Fluorocarbon coatings and silicone coatings have good anti-po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D151/08C09D183/00C09D7/12C09D5/03
Inventor 乌学东徐小龙
Owner 上海雄狮粉末科技股份有限公司
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