A kind of water-based peelable coating and preparation method thereof

A coating and water-based technology, applied in the field of water-based peelable coatings and their preparation, can solve the problems that the tape cannot cover every place and affect the aesthetic effect of the surface.

Active Publication Date: 2020-06-12
上海韦奇化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for items with complex surfaces, such as curved or uneven surfaces, the tape cannot cover every place, thus leaving many air bubbles
When the tape is removed, it often leaves a lot of residue or "ghosting" where the air bubbles are located, detracting from the aesthetics of the surface

Method used

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  • A kind of water-based peelable coating and preparation method thereof
  • A kind of water-based peelable coating and preparation method thereof
  • A kind of water-based peelable coating and preparation method thereof

Examples

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Embodiment approach

[0031] As an embodiment of the present invention, the film-forming material is a mixture of a polyurethane-based film-forming material and a polyvinyl alcohol-based film-forming material.

[0032] Wherein, as a preferred mode of the present invention, the weight ratio of the polyurethane film-forming material to the polyvinyl alcohol is 1:(0.01-0.1).

[0033] As an embodiment of the present invention, the raw materials for the preparation of the polyurethane-based film-forming material include at least polyol, polyisocyanate and polyoxime.

[0034] As an embodiment of the present invention, the molar ratio of the polyol, polyisocyanate and polyoxime is (0.8-1):(1-1.3):(0.05-0.2).

[0035] As an embodiment of the present invention, the polyol preferably contains an aromatic ring or a condensed ring.

[0036] As a preferred mode of the present invention, the polyol is a polyether polyol.

[0037] As a preferred form of the present invention, the polyether polyol can include, f...

Embodiment approach 1

[0112] Embodiment 1: This embodiment provides a kind of water-based peelable coating, by weight, the preparation raw material of described water-based peelable paint comprises:

[0113]

Embodiment approach 2

[0114] Embodiment 2. A kind of water-based peelable coating as described in embodiment 1, by weight, the preparation raw material of described water-based peelable paint comprises:

[0115]

[0116]

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PUM

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Abstract

The invention provides a waterborne peelable coating. The waterborne peelable coating is prepared from the raw materials of 30 to 60 of film forming material, 0 to 6 pigment, 0 to 6 of filler, 0.2 to2 of thickener, 1 to 10 of peeling agent, 0.5 to 5 of wetting agent, 0.2 to 2 of dispersant, 0.2 to 2 of leveling agent, 0.2 to 2 of defoaming agent and 10 to 20 of water. The waterborne peelable coating disclosed by the invention not only has the advantages of environmental friendliness, no toxin, no harm, higher peelable performance, stronger cohesion and excellent anti-corrosion and antifoulingproperty of a waterborne coating; furthermore, the waterborne peelable coating can effectively solve the defect that a curing speed of the waterborne coating is slow; meanwhile, the waterborne peelable coating disclosed by the invention has the advantage of easiness in repeat recycling and usage.

Description

technical field [0001] The invention relates to a paint, in particular to a recyclable, water-based peelable paint and a preparation method thereof. Background technique [0002] The research on peelable protective film began in the Second World War, and it has been produced and used on a large scale in Japan, Europe and the United States in the 1970s. This temporary protective film is coated on the surface of the protected object to form a tightly structured film layer, which can isolate the protected material from the corrosive medium of the outside world, reduce the corrosion rate, and thus play an anti-corrosion role; it itself is in the process of film formation Due to surface adsorption, viscous force and other forces, it can absorb the dirt on the surface of the protected object, thus playing the role of decontamination. [0003] In the manufacturing industry, parts and some finished products often lose their surface due to dust, water droplets or oil stains during p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D175/08C09D129/04C09D7/61C09D7/43
CPCC08K2003/265C08K2003/385C09D175/04C09D175/08C08L29/04C08K3/34C08K3/26C08K3/38
Inventor 管新兵
Owner 上海韦奇化工有限公司
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