Light release agent aid and use method thereof

Abstract

The invention discloses a light release agent aid and a use method thereof. The main component of the light release agent aid is a small-molecular-weight phenylsilane oligomer. The use method of the light release agent aid comprises the following specific steps: (1) adding the small-molecular-weight phenylsilane oligomer into a release agent silicone oil, adding a proper amount of an organic solvent, and carrying out full mixing and stirring to obtain a mixed solution A; (2) adding a small amount of vinyl silicone oil containing phenyl functional groups or methyl silicone oil containing phenylfunctional groups into the mixed solution, and carrying out full stirring to obtain a mixed solution B; and (3) coating a polyester film with the mixed solution B through coating equipment, and carrying out heating, curing and molding. With the light release agent aid, the aging release force of a release agent can be remarkably reduced, the numerical value of the release force is kept stable, and a high residual adhesion rate can be kept.

Description

technical field [0001] The invention relates to the technical field of release agents, in particular to a light release agent auxiliary agent and a using method thereof. Background technique [0002] The release agent is to prevent the formed composite product from sticking to the mold, and a type of isolation film is applied between the product and the mold, so that the product can be easily released from the mold, while ensuring the surface quality of the product and the mold are intact. The release agent is divided into two types: internal lubricity and external lubricity. The former is mainly to improve the lubricity of the polymer molecule itself, which requires a certain degree of affinity or compatibility with the resin polymer. The latter is to improve the lubricity between the mold and the polymer. [0003] Usually, in order to increase the release force of the polyester film, the release agent is coated on the polyester film for plasma treatment, or fluorine trea...

AI Technical Summary

Problems solved by technology

[0004] When the release film manufacturer produces the release film, in order to ensure the stability of the release force value of the release film test, especially in the heat and pressure test, they often add a small amount of vinyl silicone oil containing phenyl functional groups or The methyl silicone oil, by introducing a benzene ring structure with better heat resistance into the release agent silicone oil whose main structure is a polymethylsiloxane molecular chain, suppresses the increase in the release force under high temperature conditions, but due to the direct introduction of benzene Vinyl silicone oil with phenyl functional group or methyl silicone oil with phenyl functional group is a large molecular weight polymer. The phenyl rigid structure of the phenyl functional group has a large steric hindrance, which affects the overall short-term rapid reaction efficiency, and its rigid structure is significantly The flexibility of the polymethylsiloxane molecular chain is reduced, resulting in a greatly reduced reactivity of vinyl silicone oil or hydrogen-containing silicone oil in the silicone oil of the release agent, resulting in a significant reduction in the residual bonding rate of the finished release film test, affecting Improved the usability of the finished release film

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