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High-salt-spray-corrosion-resistant powder paint

A powder coating and salt spray resistance technology, applied in powder coatings, anti-corrosion coatings, epoxy resin coatings, etc., can solve the problems of coating aging failure, surface appearance deterioration, shortening the effective life time of the coating, etc., to achieve good resistance to boiling The effect of improving the resistance to salt spray corrosion and good resistance to cathodic disbonding

Inactive Publication Date: 2018-08-24
山东兰生环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the coatings formed by powder coatings with ordinary formulas have relatively ordinary performance in all aspects, and various performance indicators can meet the requirements of use. However, when the use environment becomes a little harsher, such as temperature and humidity, for example, the In contact with certain chemical materials, etc., the effective life time of the coating will be significantly shortened, the aging of the coating will be accelerated, and the appearance of the surface will gradually deteriorate

Method used

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Examples

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Effect test

Embodiment 1

[0026] The powder coating with high resistance to salt spray corrosion includes main materials and auxiliary materials, wherein the main materials are made of the following raw materials in weight percentage:

[0027]

[0028] The auxiliary materials include barium sulfate, titanium dioxide, wollastonite, ultramarine blue, benzoin, wax powder, 2-methylimidazole and boron oxide, and the mass percentages of the main ingredients are as follows:

[0029]

[0030] The fineness of the auxiliary material is 200 mesh.

Embodiment 2

[0034] The powder coating with high resistance to salt spray corrosion includes main materials and auxiliary materials, wherein the main materials are made of the following raw materials in weight percentage:

[0035]

[0036] The auxiliary materials include barium sulfate, titanium dioxide, wollastonite, ultramarine blue, benzoin, wax powder, 2-ethylimidazole and boron oxide, and the mass percentages of the main ingredients are as follows:

[0037]

[0038] The fineness of the auxiliary material is 200 mesh.

Embodiment 3

[0042] The powder coating with high resistance to salt spray corrosion includes main materials and auxiliary materials, wherein the main materials are made of the following raw materials in weight percentage:

[0043]

[0044] The auxiliary materials include barium sulfate, titanium dioxide, wollastonite, ultramarine blue, benzoin, wax powder, 2-methylimidazole and boron oxide, and the mass percentages of the main ingredients are as follows:

[0045]

[0046] The fineness of the auxiliary material is 200 mesh.

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Abstract

The invention belongs to the field of powder coating, and particularly relates to a high-salt-spray-corrosion-resistant powder paint which comprises a main material and auxiliary materials. The main material is prepared from, by weight, 40-60% of epoxy resin, 10-30% of phenolic modified epoxy resin, 1-3% of dicyanodiamide curing agent and 14-325 of phenolic curing agent, and the auxiliary materials include, by mass accounting for the main material, 8-18% of barium sulfate, 2-8% of titanium dioxide, 5-30% of wollastonite, 0.1-0.5% of ultramarine, 0.5-5% of benzoin, 0.5-5% of wax powder, 0.5-5%of imidazole and 0.5-5% of boron oxide. A coating formed by the powder paint has excellent resistance to salt spray and water boiling, and cathode striping resistance can be improved.

Description

technical field [0001] The invention belongs to the field of powder coatings, in particular to a powder coating with high resistance to salt spray corrosion. Background technique [0002] The volatilization of organic solvents in the process of paint spraying has always been one of the main sources of air pollution, especially the frequent haze weather in various parts of our country, which has put forward an urgent demand for the paint industry. Compared with liquid coatings, powder coatings do not use solvents, have no solvent volatilization during application, and have the advantages of high recycling rate, easy operation, high productivity, and fast coating drying. Therefore, they are widely used in automobiles, household appliances, machinery, It is widely used in construction, shipbuilding and other fields to replace liquid paint. [0003] At present, the coatings formed by powder coatings with ordinary formulas have relatively ordinary performance in all aspects, and...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/03C09D5/08C09D7/61
Inventor 赵立峰
Owner 山东兰生环保科技有限公司
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