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High-temperature-resistant powder coating

A technology of powder coating and high temperature resistance, which is applied in the direction of powder coating, anti-corrosion coating, fire-proof coating, etc. It can solve the problems of general heat resistance, difficulty of powder spraying in the preparation process, and poor fluidity of powder coating, so as to achieve the improvement of acid and alkali corrosion resistance , facilitate equipment layout, increase the effect of adhesion

Pending Publication Date: 2022-03-01
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] The above-mentioned patent has the following disadvantages: it only relies on solid silicone resin as a filler, and its heat resistance is average, and it uses a combination of various powders and resins, resulting in poor fluidity of the entire powder coating. are relatively difficult, so further improvements are needed

Method used

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Examples

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Effect test

Embodiment 1

[0035] A high temperature resistant powder coating, comprising the following components by weight: modified resin 400-600, crosslinking curing agent 20-30, mica powder 100-200, talcum powder 150-250, hollow micropowder 100-200, defoamer 1 -9, leveling agent 1-9, high temperature pigment 20-30, other additives 1-3.

[0036] The talc powder is of fine grade with a particle size of 4.5-5.5 μm, the mica powder is of muscovite powder, and the hollow fine powder has a particle size of 15-17 μm.

[0037] Modified resin is used as the main filler, and mica powder and talc powder are added on the basis to ensure heat resistance and adhesion performance. Reliable preparation of the coating ensures the quality of the preparation. On the basis of the above, the addition of hollow micropowder increases the fluidity of the coating, thereby reducing the difficulty of melt extrusion during the preparation process and the subsequent spraying process, and the increase of hollow micropowder, It...

Embodiment 2

[0039] A high temperature resistant powder coating, comprising the following components by weight: modified resin 400-600, crosslinking curing agent 20-30, mica powder 100-200, talcum powder 150-250, hollow micropowder 100-200, defoamer 1 -9, leveling agent 1-9, high temperature pigment 20-30, other additives 1-3, modified silicon carbide 5-7, modified silica sol 20-30.

[0040] The talc powder is of fine grade with a particle size of 4.5-5.5 μm, the mica powder is of muscovite powder, and the hollow fine powder has a particle size of 15-17 μm.

[0041] In this example, on the basis of Example 1, modified silicon carbide and modified silica sol are added, which not only significantly improves the acid and alkali corrosion resistance of the powder coating, but also increases the adhesion of the powder coating.

Embodiment 3

[0043] A high temperature resistant powder coating, comprising the following components by weight ratio: modified resin 450-550, crosslinking curing agent 22-28, mica powder 120-180, talcum powder 180-220, hollow micropowder 120-180, defoamer 3 -7, leveling agent 3-7, high temperature pigment 20-30, other additives 1-3, modified silicon carbide 6, modified silica sol 15.

[0044] The talc powder is of fine grade with a particle size of 4.5-5.5 μm, the mica powder is of muscovite powder, and the hollow fine powder has a particle size of 15-17 μm.

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Abstract

The invention discloses a high-temperature-resistant powder coating, and relates to the technical field of powder coatings. Comprising the following components: modified resin, a cross-linking curing agent, mica powder, talcum powder, hollow micro powder, a defoaming agent, a flatting agent, high-temperature pigment and other auxiliaries, and the preparation method specifically comprises the following steps: premixing the raw materials in proportion, and then putting the raw materials into a stirrer for dry stirring. The modified resin is used as a main filler, the mica powder and the talcum powder are added on the basis of the modified resin, heat resistance and adhesion performance are guaranteed, meanwhile, by means of the defoaming agent, the flatting agent, the crosslinking curing agent and other auxiliaries, reliable preparation of the coating can be guaranteed, preparation quality is guaranteed, on the basis, the hollow micro powder is added, the flowing property of the coating is improved, and the coating is more environment-friendly. Therefore, the difficulty of melt extrusion in the preparation process and the difficulty of the subsequent spraying process are reduced, and the heat resistance of the coating is also well improved due to the increase of the hollow micro powder.

Description

technical field [0001] The invention relates to the technical field of powder coatings, in particular to a high temperature resistant powder coating. Background technique [0002] High temperature resistant powder coating is a special functional coating. It not only has the performance of ordinary coatings, but also has heat resistance, corrosion resistance, weather resistance, etc. It is widely used in electric power stations, metallurgy, petroleum, aviation, chemical industry , medicine, food and other industries. For example, barbecue grills, heaters, high-power lighting, heating pipes, hot stoves, mufflers, ovens, high-temperature furnaces, motorcycle exhaust pipes, chimneys and other high-temperature-resistant equipment. [0003] After retrieval, the Chinese Patent Publication No. is CN106010228A, which discloses a high temperature resistant powder coating, and its raw materials are composed of the following components in terms of mass percentage: solid silicone resin:...

Claims

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Application Information

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IPC IPC(8): C09D5/03C09D7/61C09D5/08B02C21/00B02C23/14
CPCC09D5/033C09D5/18C09D5/08B02C21/00B02C23/14
Inventor 费邦忠周正华查全达费邦能胡先海王平
Owner ANHUI HUAHUI SUYE TECH SHARE CO LTD
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