Anti-warping PVC building decoration film pasting process

Abstract

The invention discloses an anti-warping PVC building decoration film pasting process, and belongs to the field of PVC films. The anti-warping PVC building decoration film pasting process is characterized by arranging a plurality of films and anti-warping bags, after pasting, an anti-warping adhesive layer can be formed on the edges and joints of the films, the anti-warping adhesive layer is matched with the effects of connecting lines and keel whiskers, the strength of the anti-warping adhesive layer can be effectively maintained, then the edge of the bonded film is effectively protected against warping, along with prolonging of the use time, when the anti-warping adhesive layer cracks, external water enters a through line along the through line to make contact with the self-heating powder, so that the self-heating powder generates heat, a part of the anti-warping glue layer is softened and melted, cracks are mutually fused and repaired, the time of the anti-warping effect on the filmis prolonged, the service life of the decorative film is further prolonged, and meanwhile, the protective effect on a building surface is better.

Description

technical field [0001] The invention relates to the field of PVC films, and more specifically relates to a warping-proof PVC architectural decorative film sticking process. Background technique [0002] PVC is polyvinyl chloride, which is a polymer polymerized by vinyl chloride monomer (VCM) in peroxide, azo compound and other initiators; or under the action of light and heat according to the mechanism of free radical polymerization. . Vinyl chloride homopolymers and vinyl chloride copolymers are collectively referred to as vinyl chloride resins. [0003] PVC is a white powder with an amorphous structure, a small degree of branching, a relative density of about 1.4, a glass transition temperature of 77-90°C, and begins to decompose at about 170°C. It has poor stability to light and heat. When exposed to sunlight, it will decompose to produce hydrogen chloride, and further autocatalyze the decomposition, causing discoloration and rapid decline in physical and mechanical pro...

AI Technical Summary

Problems solved by technology

However, when the decorative film used in the construction industry is pasted, the edge is easily affected by the external environment due to contact with the outside world, such as external rainwater, air oxidation, etc., resulting in warping at the edge, making the edge It is easy to peel and peel, which not only affects the aesthetics of the decoration, but also reduces its overall service life, and also affects the protective effect on the building surface

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