Preparation method of emulsion pressure-sensitive adhesive and emulsion pressure-sensitive adhesive

Abstract

The invention provides a method for preparing an emulsion pressure-sensitive adhesive, comprising: preparing a silicone resin; using the silicone resin to prepare an oily silicone pressure-sensitive adhesive; mixing the oily silicone pressure-sensitive adhesive with an emulsifier. The emulsion-type pressure-sensitive agent prepared by the method is different from the solution-based pressure-sensitive agent in the prior art, that is, the oil-based silicone pressure-sensitive agent, and its preparation process is safe, healthy, and does not pollute the environment; Good pressure sensitive agent.

Description

technical field [0001] The invention relates to the field of silicone pressure-sensitive adhesives, and more specifically, to a preparation method of emulsion pressure-sensitive adhesives and emulsion pressure-sensitive adhesives. Background technique [0002] In recent years, with the expansion of demand for packaging, decoration, office supplies and various labels, people's demand for pressure-sensitive adhesives is also increasing. Silicone pressure-sensitive adhesive (PSA) is a special adhesive that can stay in a viscoelastic state for a long time, semi-dry, and can maintain permanent and continuous bonding ability. It can firmly adhere to the surface of the substrate only by applying finger pressure. Silicone pressure-sensitive adhesives have excellent performance especially at high temperature (260°C) and low temperature (-73°C). In addition, they also have very good electrical properties, no corrosion to metals, and no irritation to the skin. ; With the development o...

AI Technical Summary

Problems solved by technology

However, the existing form of silicone pressure-sensitive adhesive is mostly solution type, but its safety and environmental friendliness are poor, which greatly limits the scope of application.