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Waterborne bi-component coal tar pitch anticorrosive paint and preparation method thereof

A technology of anti-corrosion coatings and coal tar pitch, applied in anti-corrosion coatings, asphalt coatings, anti-fouling/underwater coatings, etc., can solve the problems of poor film-forming performance during construction, and achieve good chemical resistance, strong adhesion, The effect of low VOC

Inactive Publication Date: 2017-11-03
HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, the invention patent application with the application publication number CN104845422A discloses "an environment-friendly modified asphalt coating and its preparation method". This scheme does not use volatile organic solvents, but still belongs to oil-based coatings.
Moreover, its construction film-forming performance is not good, so it is not suitable as a heavy-duty anti-corrosion coating.

Method used

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  • Waterborne bi-component coal tar pitch anticorrosive paint and preparation method thereof
  • Waterborne bi-component coal tar pitch anticorrosive paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0038] Preparation of component A:

[0039] Step a1, adding SBS modifier to emulsified coal tar pitch (50% solid content), dispersing at 600-900rpm for 10-15min;

[0040] Step a2, add water-based epoxy resin emulsion (solid content is 45%), silicone modified acrylic resin, defoamer, dispersant and wetting agent successively to the mixture obtained in step a1, continue to stir for 10-15min, and then Disperse at 600-900rpm for 10-15min to obtain component A;

[0041] Preparation of component B:

[0042] Step b1, mixing the curing agent, composite zinc phosphate, aluminum tripolyphosphate, barium sulfate, dispersant, 0.1-0.3 parts of defoamer and water, and dispersing at 300-500 rpm for 30-40 minutes to form a uniform paint slurry;

[0043] Step b2, grinding the uniform paint slurry to a fineness of ≤75 μm and filtering it with a 200-mesh filter to obtain component B;

[0044] Among them, the A component and the B component are mixed according to the mass ratio of 5:1.

[0045]...

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Abstract

The invention discloses a waterborne bi-component coal tar pitch anticorrosive paint. The waterborne bi-component coal tar pitch anticorrosive paint comprises a component A and a component B, wherein the component A comprises emulsified coal tar pitch, a waterborne epoxy resin emulsion, an organic silicone modified acrylic resin, an SBS modifying agent, a dispersing agent, a defoamer and a wetting agent; the component B comprises a curing agent, composite zinc phosphate, aluminum triphosphate, barium sulfate, a dispersing agent, a defoamer and water; the waterborne epoxy resin emulsion contains a polyoxyethylene group and two epoxy groups. The VOC of the waterborne bi-component coal tar pitch anticorrosive paint is relatively low, the waterborne epoxy emulsion and the organic silicone modified acrylic resin are used as film forming materials, the coal tar pitch and the SBS modifying agent are matched together with other raw materials, so that the waterborne bi-component coal tar pitch anticorrosive paint integrates the advantages of the epoxy resin, the organic silicone modified acrylic resin and the coal tar pitch, is excellent in chemical resistance and water resistance, is an anticorrosive insulating paint with high performances, and has a broad application prospect.

Description

technical field [0001] The invention belongs to the field of water-based coatings, and in particular relates to a water-based two-component coal tar pitch anticorrosion coating and a preparation method thereof. Background technique [0002] At present, oil-based coal tar pitch heavy-duty anti-corrosion coatings are widely used in oil pipelines, container primers, and underground operations because of their good anti-corrosion properties. However, oil-based coal tar pitch heavy-duty anti-corrosion coatings also have the disadvantages of general paints, such as high VOC (volatile organic compounds ) emissions, with the rapid development of our country, we are facing huge environmental protection pressure, and this problem has become more prominent. [0003] For this reason, modified asphalt coatings have appeared in the prior art in an attempt to reduce VOC emissions. For example, the invention patent application with the application publication number CN104845422A discloses ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D195/00C09D163/00C09D133/00C09D5/08C09D5/25C09D5/14C09D7/12
CPCC09D195/005C08K2003/3045C08K2003/327C08K2003/328C08L2205/035C09D5/00C09D5/08C09D5/14C08L63/00C08L33/00C08L87/00C08L53/02C08K3/00C08K3/32C08K3/30C08K3/36
Inventor 张海伟
Owner HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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