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Anticorrosive coating with high bonding strength

An anti-corrosion coating and high-adhesion technology, applied in the field of coatings, can solve the problems of reduced protective effect and low substrate adhesion, and achieve the effects of saving anti-corrosion costs, excellent comprehensive performance and high corrosion resistance.

Active Publication Date: 2012-04-11
SHANGHAI HILONG SHINE NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chlorosulfonated polyethylene paint belongs to high-molecular-weight rubber coatings. Its own coating has excellent chemical resistance and good mechanical properties, but its low adhesion to the substrate reduces its protective effect. Therefore, it is necessary to improve its coating It is necessary to develop a chlorosulfonated polyethylene type anti-corrosion coating with high bond strength for adhesion to the substrate and prolong the anti-corrosion life

Method used

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  • Anticorrosive coating with high bonding strength
  • Anticorrosive coating with high bonding strength

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The raw material ratio (weight percentage) of Examples 1 to 3 is shown in Table 1 below:

[0053]

[0054] Mix component A and component B according to the ratio in Table 1 and mix them evenly, then use a brush to apply the paint to the sand-blasted carbon steel plate. After it is completely cured, it is used as the coating film sample a for performance evaluation.

[0055] Among them, component A is pre-treated in the following method and then mixed with component B to obtain better results: according to the raw material composition of component A shown in Table 1, add the corresponding weight percentage of raw materials into the pull cylinder, Start the disperser for low-speed dispersion and stirring, and add the raw materials while stirring. After all the raw materials are added, disperse at high speed (2500 rpm) for 40 minutes to obtain a uniformly dispersed component A mixture; then, put the component A mixture into Grinding is carried out in the grinder, and the finene...

Embodiment 2

[0066] Stir Component A and Component B according to the ratio shown in Example 2 in Table 1 above, and then apply the paint to the sandblasted carbon steel plate with a brush. After it is completely cured, it will be used as a coating sample b For performance evaluation.

Embodiment 3

[0068] Stir Component A and Component B according to the ratio shown in Example 3 in Table 1 above, and then use a brush to apply the paint to the sandblasted carbon steel plate. After it is completely cured, it will be used as a sample film c For performance evaluation.

[0069] Use elcometer106 spring pull adhesion tester to test the adhesion strength of the paint film. The bonding properties of the coating film samples of the high bonding strength anticorrosive coatings prepared in Examples 1 to 3 are shown in Table 2:

[0070]

[0071] It can be seen from the above experimental results that the high bond strength chlorosulfonated polyethylene anticorrosive coating of the present invention has higher bond strength than general chlorosulfonated polyethylene anticorrosive coatings.

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Abstract

The invention discloses an anticorrosive coating with high bonding strength. The coating comprises an A component and a B component, and the A and B components are mixed according to a mass ratio of 5-7:1. The invention is prepared by mixing, rapid dispersing, grinding, and stirring of fourteen chemical additives such as chlorosulfonated polyethylene, epoxy resin, toluene, xylene, amine curing agents, and the like. According to the invention, amine curing agents are used to cure epoxy modified chlorosulfonated polyethylene coating, which provides the coating with excellent comprehensive performance, good mechanical properties, chemical properties, and high bonding strength. Besides excellent anti-corrosive performance, the adhesive force of a coating with a thickness of 150 microns on a carbon steel plate is up to above 5 MPa when tested by a pull-off method through a spring-type pull-off adhesive force tester. The performance increases the service life of the coating, saves anticorrosive cost, and is currently an ideal product of anticorrosive coatings.

Description

Technical field [0001] The invention belongs to the technical field of coatings. Specifically, it relates to the development of rubber anticorrosive coatings with high-performance adhesive strength. Background technique [0002] Anti-corrosion coatings are widely used in mines, mechanical equipment and chemical pipelines. At present, metal corrosion and rust have become a major disaster in the national economy. Improving the technical level of rust removal and rust prevention is an important research topic in countries all over the world. Moreover, with the development of modern industry, people have put forward higher requirements on the ability and service life of anti-corrosion coatings to withstand environmental corrosion. Especially in the application of petroleum pipelines, with the harsh drilling conditions and the increase of drilling depth, its requirements are more stringent, not only requiring it to meet the relevant heavy-duty anti-corrosion requirements, but also t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D123/34C09D163/00C09D5/08
Inventor 孙健粟鹰季莫宁常媛玲
Owner SHANGHAI HILONG SHINE NEW MATERIAL
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