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A kind of vinyl ester resin coating, superhydrophobic coating and its preparation method and application

A vinyl ester resin and super-hydrophobic technology, applied in epoxy resin coatings, coatings, etc., can solve the problems of poor durability of hydrophobic effect, difficulty in wide use, poor adhesion and wear resistance of super-hydrophobic coatings, etc.

Active Publication Date: 2021-07-06
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the superhydrophobic coating obtained by using the existing superhydrophobic coating has problems such as poor adhesion and wear resistance, and the durability of the hydrophobic effect is poor, which makes it difficult to be widely used in actual production.

Method used

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  • A kind of vinyl ester resin coating, superhydrophobic coating and its preparation method and application
  • A kind of vinyl ester resin coating, superhydrophobic coating and its preparation method and application
  • A kind of vinyl ester resin coating, superhydrophobic coating and its preparation method and application

Examples

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preparation example Construction

[0031] In the present invention, the preparation of the vinyl ester resin coating includes 30 to 55 parts by weight of the modified vinyl ester resin, preferably 35 to 45 parts. In the present invention, the modified vinyl ester resin is modified by a vinyl ester resin is obtained by a silicone coupling agent; a method of preparing a modified vinyl ester resin, preferably comprising the steps of:

[0032] The vinyl ester resin, the active diluent, and the silane coupling agent were mixed at 70 to 80 ° C for 2 to 5 hours, resulting in a modified vinyl ester resin.

[0033] The present invention is not particularly limited for the source of the vinyl ester resin, and can be prepared by a commercially available goods well known to those skilled in the art or by methods well known to those skilled in the art. In an embodiment of the invention, the method of preparing the vinyl ester resin preferably comprises the steps of:

[0034] The epoxy resin, methacrylic acid, and catalyst were ...

Embodiment 1

[0051] (1) Preparation of vinyl ester resin

[0052] The epoxy resin 128, methacrylic acid (the molar ratio of epoxy resin 128 and the methacrylic acid is 1.02: 1) and a catalyst (specifically N, N-dimethylbenzylamine, the amount of epoxy resin 128 and A 0.5% of the total mass of the primary acrylic acid) mixed, the reaction was carried out under 105 ° C, and the acid value was measured every 0.5h. When the acid value drops below 5 mgKOH / g, the reaction is stopped, naturally cooling to 70 ° C, hot out The vinyl ester resin is obtained and stored in light.

[0053] (2) Preparation of modified vinyl ester resins

[0054] To the vinyl resin is added with methacrylate (35% of the amount of vinyl resin mass) and a isocyanate triethoxysilane (10% of the amount of vinyl resin), The reactive vinyl ester resin was obtained at 75 ° C for 3 h.

[0055] (3) Preparation of vinyl ester resin coating

[0056] 15 g of the modified vinyl acrylate resin and 18 g of methacrylate resin were mixed a...

Embodiment 2

[0060] The superhydrophobic coating is prepared according to the method of Example 1, and the extent of the silane coupling agent is 20% of the mass of the vinyl resin in the process of preparing the modified vinyl ester resin in step (2).

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Abstract

The invention relates to the technical field of nano coatings, in particular to a vinyl ester resin coating, a superhydrophobic coating and a preparation method and application thereof. In the vinyl ester resin coating provided by the present invention, the modified vinyl ester resin is used as a matrix resin and has good hydrophobicity; micron-sized silicon dioxide can form a rough structure on the coating surface, so that the obtained coating has a good Hydrophobic; the active diluent can not only make the micron-sized silica better dispersed in the matrix resin, but also facilitate the cross-linking and curing of the coating, without the use of volatile solvents such as acetone, ethyl acetate, etc., green and environmentally friendly; At the same time, it is equipped with an oxygen inhibitor and a photoinitiator, which can be cured under ultraviolet irradiation to form a superhydrophobic coating. The superhydrophobic coating has good adhesion, wear resistance and durable superhydrophobicity, and With good self-cleaning ability, water droplets can roll down automatically, taking away the dust and pollutants attached to the coating surface.

Description

Technical field [0001] The present invention relates to the field of nano-coating, and more particularly to a vinyl ester resin coating, a superhydrophobic coating and a preparation method thereof. Background technique [0002] Superhydrophobic phenomenon means a phenomenon when the surface of the object is greater than 150 ° and the rolling angle is less than 5 °. Because superhydrophobic phenomena has important significance for the waterproof, anti-ice and self-cleaning of materials, thereby causing great interest in researchers. [0003] In recent years, the research of superhydrophobic coatings at home and abroad has been developed rapidly, and some super-hydrophobic coating products have emerged. However, there is a problem of adhesion and abrasion resistance, and the hydrophobic effect is poor, resulting in a wide range of hydrophobic coatings, and it is difficult to use in actual production. Inventive content [0004] It is an object of the present invention to provide a ...

Claims

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Application Information

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IPC IPC(8): C09D163/10C09D7/61C09D7/20
CPCC09D7/00C09D163/10C09D7/20C09D7/61C09D7/69C08K3/36
Inventor 刘华段沙沙吕学超吕丽娜陈军营刘坐镇吕晓平
Owner EAST CHINA UNIV OF SCI & TECH
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