Metal surface coating composition as well as preparation method, spraying method and application thereof

A technology of metal coating and composition, applied in the field of metal surface coating composition and preparation thereof, can solve the problems of large porosity of metal coating, electric breakdown spraying efficiency, etc., so as to improve the barrier performance and increase the carrying charge volume, and the effect of improving efficiency

Active Publication Date: 2021-05-07
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is to overcome the shortcomings of the existing metal coatings, such as high porosity, easy electrical breakdown and low spraying efficiency, and provide a metal surface coating that can reduce the porosity and increase the spraying thickness

Method used

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  • Metal surface coating composition as well as preparation method, spraying method and application thereof
  • Metal surface coating composition as well as preparation method, spraying method and application thereof
  • Metal surface coating composition as well as preparation method, spraying method and application thereof

Examples

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preparation example Construction

[0031] The present invention also provides a preparation method of a metal surface coating composition, the composition is used for spraying on the metal surface and can decorate and protect the metal surface, comprising the following steps:

[0032] (1) High polymer, inorganic matter and auxiliary agent are pulverized to obtain high polymer powder particles, inorganic powder particles and auxiliary agent powder particles, and the high polymer powder particles and auxiliary agent powder particles are micron-sized powder particles, so The inorganic powder particles include nanoscale powder particles;

[0033] (2) Mix high polymer powder particles, inorganic powder particles and additive powder particles, and the mixing can be realized by existing mixers;

[0034] (3) Mechanically kneading the mixed polymer powder particles, inorganic powder particles and additive powder particles to form physically bonded microsphere particles. The mechanical kneading can be realized by existi...

Embodiment 1

[0043] The composition of material proportioning according to mass parts is as follows:

[0044] Bisphenol A type epoxy resin 100 parts, methyl phenyl silicone resin 0 parts, 50-2000nm Al 2 o 3 Particle 1 part, 10-70nm SiO 2 1 part of particles, 1 part of cyanamide SH-500A curing agent, 1 part of polyacrylic acid leveling agent, 0.1 part of silane coupling agent KH-550, 0.1 part of bisphosphite antioxidant, 5.0-40.0 μm mica powder 0 copies. Among them, bisphenol A epoxy resin and methylphenyl silicone resin belong to high polymer powder particles, and their particle diameters are both 5-10 microns. Polyacrylic acid leveling agent, silane coupling agent KH-550 type, dicyandiamide SH-500A type curing agent and phosphite antioxidant belong to auxiliary powder particles, and their particle diameters are all 5-10 microns. According to the above-mentioned preparation method, the above-mentioned ingredients are prepared into a metal surface coating composition. In other examples...

Embodiment 2

[0046] The composition of material proportioning according to mass parts is as follows:

[0047] 90 parts of bisphenol A epoxy resin, 30 parts of methyl phenyl silicone resin (polysiloxane), 50-2000nm Al 2 o 3 Particles 2 parts, 10-70nm SiO 2 2 parts of granule, 2 parts of dicyandiamide SH-500A curing agent, 2 parts of polyacrylic acid leveling agent, 0.2 part of silane coupling agent KH-550, 0.3 part of phosphite antioxidant, 5.0-40.0μm mica powder 10 servings.

[0048] The preparation method is the same as in Example 1.

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Abstract

The invention discloses a metal surface coating composition as well as a preparation method, a spraying method and application thereof, the metal coating composition comprises mixed high polymer powder particles, inorganic powder particles and auxiliary powder particles, the high polymer powder particles and the auxiliary powder particles are micron-sized powder particles, and the inorganic powder particles and the auxiliary powder particles are micron-sized powder particles. The inorganic powder particles comprise nanoscale powder particles; and the composition is formed by mechanically kneading the mixed particles. The technical problem to be solved by the invention is to overcome the defects of large void ratio, easy generation of electric breakdown and low spraying efficiency of the existing metal coating, and provides the metal surface coating composition capable of increasing the thickness of the powder coating and reducing the void ratio as well as the preparation method, the spraying method and the application of the metal surface coating composition.

Description

technical field [0001] The invention relates to a metal surface coating process, in particular to a metal surface coating composition, a preparation method, a spraying method and application thereof. Background technique [0002] Powder spraying is an important technology for surface decoration, protection, stealth or invisibility. Electrostatic powder spraying is an important spraying technology for metal surfaces. Powder materials form charged particles through ultra-high-voltage instantaneous ionized air flow, and spray on the metal surface. After heat treatment, the surface melts and flows The flat coating film is tightly bonded, which can form a high-temperature-resistant, flat and wear-resistant coating, and produce high-temperature, friction, wear, corrosion, and high-efficiency protection effects on the metal surface. [0003] The existing technology uses polymer materials or polymer materials mixed with inorganic phase ultrafine powders, and undergoes surface grafti...

Claims

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Application Information

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IPC IPC(8): C09D163/02C09D183/04C09D7/61B05D1/06B05D3/02B05D7/14B05D7/22B05D7/24
CPCC09D163/00C09D7/61B05D7/14B05D7/24B05D7/146B05D7/225B05D3/0218B05D1/06C08K2003/2227C08K2201/005C08L83/04C08K3/22C08K3/36C08K3/34
Inventor 柯扬船王鹏
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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