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High-temperature-resistant epoxy resin powder coating

A technology of epoxy resin powder and epoxy resin, which is applied in the field of powder coatings and high temperature resistant epoxy resin powder coatings. Flammability, high surface gloss, and low cost

Inactive Publication Date: 2015-10-07
ANHUI HUAHUI SUYE TECH SHARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, heat-resistant powder coatings are still dominated by silicone powder coatings. Although silicone powder coatings have relatively high heat resistance, their prices are high, their initial appearance and mechanical properties are not very good, the curing temperature is high, and long-term durability is required. Coating film at high temperature above 400℃ is very difficult

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The formula of a kind of high temperature resistant epoxy resin powder coating is as follows:

[0041] nano-SiO 2 30 parts epoxy resin

[0042] 2 parts low melting point glass powder

[0043] Hardener 2 parts

[0044] Flame retardant 2 parts

[0045] Mica powder 20 parts

[0046] Calcium silicate 20 parts

[0047] Degasser 0.5 part

[0048] Leveling agent 0.5 parts

[0049] 3 parts chrome copper pigment

[0050] Antioxidant 0.5 parts.

[0051] The curing agent in the formula is trimellitic anhydride-imidazolate, the flame retardant is a mixture of magnesium hydroxide and aluminum hydroxide, the weight ratio of magnesium hydroxide to aluminum hydroxide is 1:1, the degassing agent is benzoin, and the leveling agent is The agent is hydroxymethyl cellulose, and the antioxidant is compound antioxidant JY-215.

[0052] The preparation steps are as follows:

[0053] (1) Weigh the materials according to the above formula, and pre-mix the raw materials;

[0054] (2) ...

Embodiment 2

[0058] The formula of a kind of high temperature resistant epoxy resin powder coating is as follows:

[0059] nano-SiO 2 40 parts epoxy resin

[0060] 3 parts low-melting glass powder

[0061] Curing agent 5 parts

[0062] Flame retardant 5 parts

[0063] 30 parts mica powder

[0064] Calcium silicate 30 parts

[0065] Degasser 1 part

[0066] Leveling agent 1 part

[0067] Chromium copper pigment 5 parts

[0068] Antioxidant 1 part.

[0069] The selection and preparation method of each component in the formula are the same as in Example 1.

Embodiment 3

[0071] The formula of a kind of high temperature resistant epoxy resin powder coating is as follows:

[0072] nano-SiO 2 20 parts epoxy resin

[0073] 1 part low-melting point glass powder

[0074] Curing agent 1 part

[0075] 1 part flame retardant

[0076] Mica powder 10 parts

[0077] Calcium silicate 10 parts

[0078] Degasser 0.1 parts

[0079] Leveling agent 0.1 parts

[0080] 1 part chrome copper pigment

[0081] Antioxidant 0.1 parts.

[0082] The selection and preparation method of each component in the formula are the same as in Example 1.

[0083] The performance parameters of the curing conditions of the high temperature resistant epoxy resin powder coating and the coating film formed in the embodiment 1-3 are shown in the following table:

[0084] Curing conditions and performance testing Example 1 Example 2 Example 3 curing conditions 200℃×10min 200℃×10min 200℃×10min Impact strength 490N*cm 490N*cm 490N*cm cupp...

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PUM

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Abstract

The invention discloses a high-temperature-resistant epoxy resin powder coating. The coating is composed of, by weight, 20-40 parts of nanometer SiO2 epoxy resin, 1-3 parts of low-melting-point glass powder, 1-5 parts of curing agents, 1-5 parts of fire retardant, 10-30 parts of mica powder, 10-30 parts of calcium silicate, 0.1-1 part of degassing agent, 0.1-1 part of flatting agent, 1-10 parts of chromium copper paint and 0.1-1 part of antioxidant. Compared with an organic silicon powder coating, the high-temperature-resistant epoxy resin powder coating is lower in cost, has excellent heat-resistant capacity and insulating property, and can be widely applied to coating of household appliances and electrical insulating materials.

Description

technical field [0001] The invention belongs to the technical field of chemical coatings, and relates to a powder coating, in particular to a high-temperature-resistant epoxy resin powder coating. Background technique [0002] Both powder coatings and water-based coatings have the advantages of safety, environmental protection, and no pollution, and are deeply loved by the market. However, there are great differences between the two. It is a 100% solid powder coating. Powder coatings have no VOC, while water-based coatings contain a small amount of VOCs; powder coatings use few additives, and most of them are powder additives, while water-based coatings mostly use liquid additives; powder coatings are thicker and can be sprayed to a thickness of one time It can reach more than 60μm, and water-based coatings need to be sprayed many times to achieve this thickness, so powder coatings are more efficient than water-based coatings in terms of construction efficiency, and are mo...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/03C09D5/18C09D5/25C09D7/12
Inventor 费邦忠
Owner ANHUI HUAHUI SUYE TECH SHARE CO LTD
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