Non-transfer organic silicon modified acrylate parting agent and preparation method thereof

Abstract

The invention discloses a non-transfer organic silicon modified acrylate parting agent. The non-transfer organic silicon modified acrylate parting agent is prepared from the following raw materials of 89 to 99.8wt% of organic silicon modified acrylate, 0.1 to 1wt% of interface modifier, and 0.1 to 10wt% of dispersion stabilizer. The non-transfer organic silicon modified acrylate parting agent has the advantages that by introducing an organic silicon molecular chain into a acrylate molecular chain through a chemical bonding manner, and adding the interface modifier and the dispersion stabilizer, the acrylate parting agent without silicon transfer in the use process is obtained; the acrylate parting agent can be used as a parting coating for the back side of a substrate of an electronic protective film, and be widely applied into the field of protective films; in the use process, the silicon-containing parting agent is not transferred to the adhesive layer side of the protective film; the adhesion force of pressure-sensitive adhesive in the 6 month or above protective film is maintained 99% or above.

Description

technical field

[0001] The invention relates to the technical field of release agents, in particular to a silicone-modified acrylate release agent and its preparation technology. Background technique

[0002] Protective film is widely used in modern society, and it consists of a three-layer structure, which is a film substrate in the middle, a pressure-sensitive adhesive layer on one side, and a release coating on the other side. During use, the function of the release coating is to reduce the unwinding force between the sub-sensitive adhesive layer and the substrate, but the protective film currently used has the phenomenon of transfer of the release coating to the sub-sensitive adhesive layer, which affects the sub-sensitive adhesive layer. The adhesion stability of the adhesive layer, often with the prolongation of use time, the release agent is transferred to the sub-sensitive adhesive layer, which reduces the adhesive force of the pressure-sensitive adhesive. Contents...