Scratch-resistant and stain-resistant composition as well as preparation method and application thereof on surface of membrane material

Abstract

The invention belongs to the technical field of materials, and discloses a scratch-resistant and stain-resistant composition as well as a preparation method and an application thereof on the surface of a membrane material. The composition comprises polyurethane, epoxy resin, olefine acid ester, fluorosilicone resin and nano oxide, and the nano oxide comprises nano silicon oxide and nano manganese dioxide. The composition also includes carbon nanotubes. According to the composition disclosed by the invention, in the presence of the polyurethane, the epoxy resin and the olefine acid ester, the fluorosilicone resin and the nano oxide are introduced, so that the scratch resistance and the stain resistance of a coating formed after the composition is photo-cured can be remarkably improved. The carbon nano tube is further introduced into the composition, and the carbon nano tube can interact with the nano oxide, so that the toughness of the coating is remarkably improved, and the bonding strength between the coating and the film substrate is also favorably improved. The composition is sequentially subjected to pre-curing, curing and heat preservation treatment, so that the formed coating has matte and smooth touch feeling.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a scratch-resistant and stain-resistant composition, a preparation method thereof and an application on the surface of a film material. Background technique [0002] There are various kinds of plastic films, such as PVC (polyvinyl chloride) film, PEVA (polyethylene-vinyl acetate) film, PE (polyethylene) film, EVA (ethylene-vinyl acetate copolymer) film, and the like. These films can be widely used in building materials, decoration, packaging and other fields. Specifically, for example, PVC films can be applied to surface decorations such as furniture, showcases, floors, plywood, particle boards, and glass. [0003] Due to the poor effect of some mechanical properties (scratch resistance) or chemical properties (fouling resistance), plastic films generally cannot be used directly. Therefore, it is usually necessary to modify the surface of the plastic film, such as...

AI Technical Summary

Problems solved by technology

However, the compositions capable of forming scratch-resistant and stain-resistant coatings in the prior art are mainly applied on substrates with high hardness (such as hard plastic plates), and cannot be directly applied on softer film surfaces.

The existing plastic film surface coating has poor scratch resistance and stain resistance (also called chemical corrosion resistance), poor adhesion between the coating and the plastic film, and poor coating toughness, resulting in a shorter service life of the plastic film

In addition, with the improvement of people's living standards, the aesthetic requirements for decoration have also increased. It is difficult for the plastic films in the prior art to have a good matte and silky touch.

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