Waterborne acrylic graft modified polysiloxane coating and its preparation method and application

A water-based acrylic graft modification technology, applied in the direction of anti-corrosion coatings, coatings, etc., can solve the problems of poor weather resistance of the paint film, high energy consumption, complicated operation, etc., and achieve stable product system, improved water resistance, and attached Efforts to enhance the effect

Active Publication Date: 2021-06-18
天津中航百慕新材料技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polysiloxane coatings generally need to be baked at a high temperature of 200°C when forming a film, which consumes a lot of energy, and the operation is complicated, and the weather resistance of the film after drying is not good.

Method used

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  • Waterborne acrylic graft modified polysiloxane coating and its preparation method and application
  • Waterborne acrylic graft modified polysiloxane coating and its preparation method and application
  • Waterborne acrylic graft modified polysiloxane coating and its preparation method and application

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Embodiment 1～3

[0038] Prepare water-based acrylic acid graft modified polysiloxane coating according to the proportioning in table 1, the preparation method of water-based acrylic acid graft modified polysiloxane coating comprises the following steps:

[0039] Step 1, preparation of the main ingredient: add water-based resin emulsion (add water-based resin emulsion for the first time), film-forming aids and deionized water, use a high-speed disperser to stir at a rate of 800r / min for 5 minutes until evenly stirred, then add pH adjustment Add anti-sedimentation agent and antifoaming agent 1, after uniform dispersion for 10 minutes, slowly add anti-settling agent, disperse at a speed of 1000r / min for 10 minutes, then add pigments and fillers, and disperse for 20 minutes at a speed of 1800r / min. Then add the remaining water-based resin emulsion (adding the water-based resin emulsion for the second time), stir at a speed of 1500r / min for 10min to mix evenly, then add the wetting dispersant and de...

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Abstract

The invention discloses a water-based acrylic graft modified polysiloxane coating and its preparation method and application. The water-based acrylic graft modified polysiloxane coating is composed of a main agent and a curing agent, in parts by mass. The ratio of the main agent to the curing agent is (23-25): (1-2), the main agent consists of 60-70 parts by mass of water-based resin emulsion, 15-20 parts by mass of pigment, and 5-10 parts by mass of filler , 0.5 to 1.0 parts by mass of anti-settling agent, 1.0 to 1.5 parts by mass of film-forming aid, 0.1 to 0.2 parts by mass of pH regulator, 2 to 4 parts by mass of deionized water, 0.05 to 0.10 parts by mass of The number of parts of antifoaming agent 1, 0.5 to 1 parts by mass of wetting and dispersing agent and 0.1 to 0.6 parts by mass of defoaming agent two, the curing agent is a water-based curing agent containing epoxy groups and alkoxy groups. The invented water-based acrylic graft modified polysiloxane coating has the characteristics of curing at room temperature, safety and environmental protection and high weather resistance.

Description

technical field [0001] The invention belongs to the technical field of water-based anticorrosion coatings, and in particular relates to a water-based acrylic graft modified polysiloxane coating, a preparation method and an application thereof. Background technique [0002] Traditional solvent-based coatings need to add a lot of organic solvents in the process of production and construction, which will cause certain harm to human health and the environment. With the advancement of social science and technology and the improvement of human cognition, people continue to realize the harm caused by solvent-based coatings, that is, the emission of a large amount of volatile organic compounds (VOC) will destroy the earth's ecological environment and threaten human health. At present, some laws and regulations have been issued at home and abroad in response to this matter. These environmental protection regulations have strictly restricted the emission of volatile organic compounds ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D151/08C09D7/63C09D7/61C09D5/08
CPCC08L2201/08C08L2205/035C09D5/08C09D151/085C09D7/61C09D7/63C08L33/04C08L83/04C08K13/02C08K3/22C08K3/34C08K3/346C08K5/17
Inventor 商汉章付翠茜季学伟陈静杨学晓王兴隆黄凯付天竹于一川谭震峰
Owner 天津中航百慕新材料技术有限公司
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