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High-temperature-resistant graphene/tetrapod-like zinc oxide whisker nano-ceramic coating

A four-needle zinc oxide, nano-ceramic technology, applied in anti-corrosion coatings, fire-retardant coatings, coatings, etc., can solve the problems of poor comprehensive performance, unsuitable for long-term protection, easy to generate toxic and harmful gases, etc., and achieve heat resistance. Enhance, improve storage stability, strong binding effect

Inactive Publication Date: 2020-04-10
安徽予初网络科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it still contains a lot of silicone resin, which is easy to produce toxic and harmful gases, and its comprehensive performance is not strong, so it is not suitable for long-term protection at high temperature

Method used

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  • High-temperature-resistant graphene/tetrapod-like zinc oxide whisker nano-ceramic coating
  • High-temperature-resistant graphene/tetrapod-like zinc oxide whisker nano-ceramic coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A graphene / tetraacicular zinc oxide whisker high-temperature-resistant nano-ceramic coating, comprising the following raw materials in parts by weight: 60 parts of nano-alumina sol, 2 parts of graphene, 3 parts of modified tetraacicular zinc oxide whiskers, poly 7 parts of ester-modified silicone resin, 5 parts of zirconium diboride ceramic closed-cell hollow microspheres, 3 parts of polycrystalline mullite fiber, 3.5 parts of γ-glycidyl etheroxypropyl trimethoxysilane, dihydrogen phosphate 3 parts of aluminum, 4 parts of ethylene glycol, 0.5 parts of dispersant BYK-187, 0.3 parts of leveling agent BYK-310.

[0025] The particle size of the nano-alumina in the nano-alumina sol is 10-20nm. Graphene has a diameter of 0.5-1 μm and a thickness of 0.5-3 nm. The particle size of the zirconium diboride ceramic closed-pore hollow microsphere is 5-15 μm. The polycrystalline mullite fiber has a diameter of 1-20 μm and an aspect ratio of ≥8.

[0026] The preparation method of t...

Embodiment 2

[0031] A graphene / tetraacicular zinc oxide whisker high-temperature-resistant nano-ceramic coating, comprising the following raw materials in parts by weight: 585 parts of nano-alumina sol, 2 parts of graphene, 3 parts of modified tetraacicular zinc oxide whisker, poly 7 parts of ester-modified silicone resin, 6 parts of zirconium diboride ceramic closed-cell hollow microspheres, 4 parts of polycrystalline mullite fiber, 2.5 parts of γ-(methacryloyloxy)propyltrimethoxysilane, phosphoric acid 2.5 parts of aluminum dihydrogen, 5 parts of ethylene glycol, 0.5 parts of dispersant BYK-190, 0.35 parts of leveling agent BYK-358.

[0032]The particle size of the nano-alumina in the nano-alumina sol is 10-20nm. Graphene has a diameter of 0.5-1 μm and a thickness of 0.5-3 nm. The particle size of the zirconium diboride ceramic closed-pore hollow microsphere is 5-15 μm. The polycrystalline mullite fiber has a diameter of 1-20 μm and an aspect ratio of ≥8.

[0033] The preparation meth...

Embodiment 3

[0038] A graphene / tetraacicular zinc oxide whisker high-temperature resistant nano-ceramic coating, comprising the following raw materials in parts by weight: 65 parts of nano-alumina sol, 0.5 part of graphene, 3 parts of modified tetraacicular zinc oxide whisker, poly 8 parts of ester-modified silicone resin, 5 parts of zirconium diboride ceramic closed-cell hollow microspheres, 5 parts of polycrystalline mullite fiber, N-β-(aminoethyl)-γ-aminopropylmethyl dimethyl 2 parts of oxysilane, 3 parts of aluminum dihydrogen phosphate, 5 parts of ethylene glycol, 0.3 parts of dispersant BYK-190, 0.3 parts of leveling agent BYK-310.

[0039] The particle size of the nano-alumina in the nano-alumina sol is 10-20nm. Graphene has a diameter of 0.5-1 μm and a thickness of 0.5-3 nm. The particle size of the zirconium diboride ceramic closed-pore hollow microsphere is 5-15 μm. The polycrystalline mullite fiber has a diameter of 1-20 μm and an aspect ratio of ≥8.

[0040] The preparation ...

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Abstract

The invention provides a high-temperature-resistant graphene / tetrapod-like zinc oxide whisker nano-ceramic coating, and relates to the technical field of coatings. The high-temperature-resistant graphene / tetrapod-like zinc oxide whisker nano-ceramic coating is prepared from, by weight, 50-65 parts of nano-alumina sol, 0.5-3 parts of graphene, 1-5 parts of modified tetrapod-like zinc oxide whiskers, 5-8 parts of polyester modified silicone resin, 3-7 parts of zirconium diboride ceramic closed-pore hollow microspheres, 2-5 parts of polycrystalline mullite fibers, 2-4.5 parts of a silane couplingagent, 2-3.5 parts of aluminum dihydrogen phosphate, 3-5 parts of ethylene glycol, 0.3-0.8 part of a dispersing agent and 0.2-0.4 part of a leveling agent. The nano-alumina sol is used as a main body, the graphene, the tetrapod-like zinc oxide whiskers and other components are added, and even if a small amount of polyester modified silicone resin is added, a coating layer prepared by using thenano-ceramic coating is attractive and compact, and has high high-temperature resistance, high corrosion resistance and excellent adhesive force.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a graphene / tetraacicular zinc oxide whisker high temperature resistant nano-ceramic coating. Background technique [0002] With the rapid development of contemporary science and technology, the innovation level and manufacturing technology of industrial equipment are also constantly improving, and the demand for some special coatings such as high temperature resistance is also increasing day by day. Exhaust equipment and chimneys used in some high temperature environments. The external surface protection of smelting furnaces, heaters, high-temperature reactors, vehicle exhaust pipes, engines, etc. is becoming more and more important. Some high-temperature facilities will not be put into operation immediately after being painted with high-temperature resistant coatings; other equipment, such as vehicle exhaust pipes, engines and other components, are coated with high-temperature...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/08C09D7/61C09D7/62C09D7/65
CPCC09D1/00C09D5/08C09D5/18C09D7/61C09D7/62C09D7/65C09D7/70
Inventor 胡宏武
Owner 安徽予初网络科技有限公司