Photosensitive film and preparation method thereof

Abstract

The invention discloses a photosensitive film comprising a polycarbonate PC layer, a polymethyl methacrylate PMMA layer and a photosensitive layer between the polycarbonate PC layer and the polymethylmethacrylate PMMA layer; and raw materials of the photosensitive layer comprise transparent photosensitive color changing powder, a nano-scale conductive antistatic agent, and an organosilicon phasesoluble coupling agent with two reactive functional groups of methyl and phenyl groups. The invention also discloses a preparation method of the photosensitive film. The prepared photosensitive film with a three-layer structure comprising the PC layer, an intermediate functional layer and the PMMA layer solves the problems of deformation of a conventional PC and PMMA composite film due to stress caused by differences in shrinkage thermal expansion coefficients and cracking and layer formation due to severe deformation when in use of the conventional PC and PMMA composite film. The photosensitive film is simple in control process of the preparation method, easy in operation, high in production efficiency, low in cost, free of pollution and environmentally-friendly.

Description

technical field [0001] The invention belongs to the technical field of engineering plastics, and in particular relates to a photosensitive film and a preparation method thereof. Background technique [0002] Polycarbonate (referred to as PC) is a high molecular polymer containing carbonate groups in the molecular chain. Due to the particularity of polycarbonate structure, it has become the fastest-growing general-purpose engineering plastic among the five major engineering plastics. The abbreviated code name of polymethyl methacrylate is PMMA, commonly known as plexiglass, which is by far the most excellent and relatively affordable variety of synthetic transparent materials. [0003] The composite film of PC and PMMA is widely used in mobile phones, automobiles, electronics, optics and medical fields because of its unique mechanical properties, weather resistance and optical properties. This material is produced by co-extrusion. Since PC and PMMA are two different engineer...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned problems existing in the prior art, the object of the present invention is to provide a kind of photosensitive film and preparation method thereof, the photosensitive film of PC layer, middle functional layer and the PMMA layer three-layer structure of its preparation, solved traditional PC and The composite diaphragm of PMMA has the problem of deformation due to stress due to the difference in shrinkage and thermal expansion coefficients when the diaphragm is used, and cracks and delamination in severe cases. The preparation method of the present invention has simple control process, easy operation, high production efficiency, low cost and Pollution-free and green

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