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Surface-tolerant coating and application thereof

A low surface treatment and coating technology, applied in the field of anti-corrosion of steel materials, which can solve the problems of lack of permeability and paint film toughness.

Inactive Publication Date: 2018-04-20
BEIJING BSS CORROSION PROTECTION IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a kind of low surface treatment coating and its application, to solve the problem that the low surface treatment coating in the prior art has deficiencies in permeability and paint film toughness

Method used

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  • Surface-tolerant coating and application thereof

Examples

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Effect test

preparation example Construction

[0043] Preparation of component A: put the base material resin and solvent into the tank, start the high-speed disperser, the rotation speed of the disperser is 800-1000r / min, after 10-20min, slowly add pigments and fillers and optional additives while stirring , high-speed dispersion and grinding;

[0044] Preparation of component B: add amine curing agent, liquid petroleum resin and additives into the tank in sequence, and disperse evenly;

[0045] Before use, mix A and B components in a certain proportion and stir evenly to obtain a low surface treatment coating.

Embodiment 1

[0047] The composition of low surface treatment coating in the present embodiment is:

[0048] Component A: a total of 55g of bisphenol A epoxy resin (epoxy resin E51) with an epoxy value of 0.48-0.54, a total of 10g of a solvent (benzyl alcohol: xylene = 1:2), a total of rheological agent M-5 0.5g, wetting and dispersing agent Anti Terra 204 0.25g in total;

[0049] Component B: a total of 40g of BS-T33 phenalkamine from Zhenjiang Baisui Chemical Factory, a total of 15g of liquid petroleum resin RutgersNovares LA 300;

[0050] When used, components A and B are mixed in a weight ratio of 100:100.

Embodiment 2

[0052] The composition of low surface treatment coating in the present embodiment is:

[0053] Component A: a total of 35g of bisphenol A epoxy resin (epoxy resin E51) with an epoxy value of 0.48 to 0.54, a total of 3g of a solvent (benzyl alcohol: xylene = 1:2), a total of 3g of a rheological agent M-5 0.5g, wetting and dispersing agent Anti Terra 204 0.25g in total;

[0054] Component B: a total of 18g of BS-T33 phenalkamine from Zhenjiang Baisui Chemical Factory, a total of 5g of liquid petroleum resin RutgersNovares LA 300;

[0055] When used, components A and B are mixed in a weight ratio of 125:100.

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Abstract

The invention provides a surface-tolerant coating and an application thereof. The coating comprises an A component and a B component at a weight ratio of (100-125):100. The A component comprises, by weight, 35-55 parts of epoxy resin and 3-10 parts of a first solvent. The B component comprises, by weight, 18-40 parts of an amine curing agent and 5-15 parts of a liquid petroleum resin, which is a liquid aromatic hydrocarbon resin having the viscosity being 700-2600 mpa*s and the aromatic ring of which is connected to non-active hydroxyl. The surface-tolerant coating is excellent in penetrationperformance, the toughness of a coating film is high, and the formed coating layer is excellent in adhesive force and mechanical property.

Description

technical field [0001] The invention relates to the technical field of anticorrosion of steel materials, in particular to a coating with low surface treatment and its application. Background technique [0002] At present, the steel structures scrapped due to corrosion account for more than 20% of the total steel output every year. According to statistics, the loss of steel corrosion in my country accounts for about 4% of the national economic output. In order to prevent corrosion, the most effective and simple method is to use paint to protect. Under normal circumstances, before coating anticorrosion treatment on the surface of steel materials, it is usually necessary to carry out surface treatment, such as rust removal and water removal, etc. In addition, factors such as climate and humidity must also be considered. Thorough surface treatment is a prerequisite for anti-corrosion coatings to obtain excellent anti-corrosion performance. [0003] Ideally, the surface of the ...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D157/02C09D7/61
CPCC09D163/00C08K2003/2272C08L57/02C08K3/34C08K3/22
Inventor 樊艳达李依璇谢静赵金庆田东波何永敬
Owner BEIJING BSS CORROSION PROTECTION IND
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