A kind of preparation technology of environment-friendly high-transparency hot-melt composite film

Abstract

The invention discloses a preparation process of an environmentally friendly high-transparency hot-melt composite film, which belongs to the technical field of composite films, and can realize the method of superimposing double plastic films as a base, and adopts a special process to fill the interlayer of the plastic film with mobile phase to help transparency It has the characteristics of being flowable and assisting in improving the light transmittance by increasing the refractive index. On the premise of improving the light transmittance of the substrate as a whole, it is convenient for users to adjust the light transmittance in the later stage, and then the edge of the two plastic films is Hot-melt sealing, and the mechanical properties, chemical properties and optical properties of the substrate are further improved by coating a hot-melt resin layer and a UV-curable transparent coating on both sides of the substrate, and it still has a common hot-melt composite film after final molding The overall transparency of the hot-melt composite film is consistent. When special needs are required, the fluid-assisted transparent substance can be moved by extruding the composite film, thereby reducing or increasing the transparency of the designated area, which greatly improves the practicability of the hot-melt composite film.

Description

technical field [0001] The invention relates to the technical field of composite films, and more specifically relates to a preparation process of an environment-friendly high-transparency hot-melt composite film. Background technique [0002] The composite membrane is a separation membrane composed of a microporous membrane or an ultrafiltration membrane as a supporting layer, and a dense homogeneous membrane with a thickness of only 0.1-0.25 μm is used as a barrier layer on its surface. The amount of material permeated is greatly increased. The material of the composite membrane includes any possible combination of materials, such as a ceramic membrane on a metal oxide or an aromatic polyamide film on a polysulfone microporous membrane, and the flat membrane or roll membrane must be made of non-woven fabrics. Reinforced to support the pressure resistance of microporous membranes, while hollow fiber membranes do not. [0003] The preparation methods are divided into four c...

AI Technical Summary

Problems solved by technology

[0005] Then the existing hot-melt composite film is relatively poor in transparency, and as time goes by, the transparency also shows a tendency to gradually decline. The process plays a decisive role in transparency, and the transparency is determined during molding and cannot be changed. At the same time, the overall transparency of the current hot-melt composite film is consistent, which greatly limits its application range.

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