Aqueous peelable coating and preparation method thereof

Abstract

The invention discloses an aqueous peelable coating. The aqueous peelable coating is prepared from, by mass, 65-70% of polyurethane dispersion, 8-10% of acrylic acid dispersion, 16.5-21% of an assistant and 8-10% water based on a benchmark of the total mass of the coating. According to the aqueous peelable coating, the polyurethane dispersion and the acrylic dispersion are matched, and after the formula is adopted, the adhesiveness of the aqueous peelable coating can be adjusted to be moderate, so that the aqueous peelable coating is suitable for hand peeling; meanwhile, the mechanical strength of the aqueous peelable coating is moderate, and therefore the requirement of substrate protection can be met.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a water-based strippable coating and a preparation method thereof. Background technique [0002] At present, the integrated seamless appearance products of glass and plastic, metal and plastic on the market have become a highlight in the electronics industry and other industries. Products and parts are prone to scratches during transportation or assembly, which will affect the product along the way. Appearance effect. The current method of using film technology to protect the protective surface is not suitable for structures with curved protective surfaces. This is because when the protective surface is curved, bubbles and wrinkles are likely to occur and cause scratches on the protective surface. However, when the protective surface is flat, the processing accuracy of the film fixture and protective film is extremely high, and the problem of obvious step feeling will still occur. [00...

AI Technical Summary

Problems solved by technology

[0002] At present, the integrated seamless appearance products of glass and plastic, metal and plastic on the market have become a highlight in the electronics industry and other industries. Products and parts are prone to scratches during transportation or assembly, which will affect the product along the way. Appearance

The current method of using film technology to protect the protective surface is not suitable for structures with curved protective surfaces, because when the protective surface is curved, bubbles and wrinkles are prone to occur and cause scratches on the protective surface

However, when the protective surface is flat, the processing accuracy of the film fixture and protective film is extremely high, and the problem of obvious step feeling will still occur.