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Flexible hydrophobic coating and preparation method thereof

A coating and water-based technology, applied in the direction of anti-fouling/underwater coatings, anti-corrosion coatings, polyester coatings, etc., can solve the problem of moisture absorption and peeling on the wall, and achieve the effect of long color retention time and high surface tension

Inactive Publication Date: 2020-09-08
广州市福恒嘉邦建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Water-soluble coatings use water-soluble resins as film-forming materials, represented by polyvinyl alcohol and its various modified products, in addition to water-soluble alkyd resins, water-soluble epoxy resins, and inorganic polymer water-based resins. However, after the water-based paint is applied to the wall, if the wall accidentally touches water during use, it will cause the wall to absorb moisture and peel off. Therefore, the paint needs to be rich in hydrophobic functions to prevent water intrusion. What happens inside the wall

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0018] Embodiment, this scheme is a kind of flexible hydrophobic coating and its preparation method, and its coating is divided into raw material, additive and hydrophobic agent, and the composition of described raw material is: polyvinyl alcohol, water-soluble alkyd resin, colored pigment, constitution Pigments and organic solvents, the additives are composed of water, antioxidants, preservatives and fungicides, and the preparation method is: grinding and stirring-mixing and adding-stirring and molding;

[0019] The grinding and stirring process is as follows: the polyvinyl alcohol, the coloring pigment and the extender pigment are ground and pulverized and then put into the mixer for the first stirring, and then the organic solvent and the water-soluble alkyd resin are injected into the mixer for the second stirring;

[0020] The mixing and adding process is as follows: put the antioxidant, preservative, antifungal agent and water into the container for stirring, after the st...

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PUM

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Abstract

The invention belongs to a flexible hydrophobic coating and a preparation method thereof. The coating is prepared from raw materials, additives and a water repellent. The components of the raw materials are as follows: polyvinyl alcohol, water-soluble alkyd resin, coloring pigment, extender pigment and an organic solvent, the additive is prepared from water, an antioxidant, a preservative and a mildew preventive, the preparation method comprises the steps of grinding and stirring, mixed adding and stirring forming. The prepared coating is not prone to color dispersion, long in color retentiontime, large in surface tension, resistant to corrosion, resistant to mildew and resistant to oxidation.

Description

technical field [0001] The invention belongs to the technical field of coatings, in particular to a flexible hydrophobic coating and a preparation method thereof. Background technique [0002] Any paint that uses water as a solvent or as a dispersion medium can be called a water-based paint. According to the type of binder in the coating, water-based coatings are divided into two categories: natural water-based coatings of natural substances or minerals and petrochemical water-based coatings of artificial synthetic resins. Only water-based coatings of artificial synthetic resins are described here. [0003] Water-soluble coatings use water-soluble resins as film-forming materials, represented by polyvinyl alcohol and its various modified products, in addition to water-soluble alkyd resins, water-soluble epoxy resins, and inorganic polymer water-based resins. However, after the water-based paint is applied to the wall, if the wall accidentally touches water during use, it w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D129/04C09D167/08C09D5/08C09D5/14C09D7/63C09D7/65
CPCC08L2205/03C09D5/08C09D5/14C09D129/04C09D167/08C09D7/63C09D7/65C08L67/08C08L91/06C08K5/01C08L29/04
Inventor 刘厚武
Owner 广州市福恒嘉邦建材有限公司