Low styrene volatilization unsaturated polyester gel coat resin and preparation method thereof

Abstract

The invention relates to a low styrene volatilization unsaturated polyester gel coat resin used for the surface of a composite material, and a preparation method thereof. The gel coat resin which is prepared by carrying out high speed dispersion on an unsaturated polyester resin, a thixotropic agent, a filler, styrene, a defoamer, a styrene volatilization inhibitor and the like is suitable for spraying. The unsaturated polyester resin for preparing the gel coat resin, which has the characteristics of low viscosity, high solid content and high strength, is a special unsaturated polyester resin developed for the low styrene volatilization unsaturated polyester gel coat resin. The low styrene volatilization unsaturated polyester gel coat resin of the invention, which can be widely applied to the surface of the composite material, can decorate and protect the composite material; and simultaneously the gel coat resin can greatly reduce the styrene volatilization in the gel coat construction process, so the gel coat resin is in favor of the environmental protection.

Description

technical field [0001] The invention relates to the technical field of polymer material preparation, in particular to an unsaturated polyester gel coat resin with low styrene volatilization and a preparation method thereof. Background technique [0002] Unsaturated polyester gel coat resin is an unsaturated polyester resin used on the surface of composite materials to provide protection and decoration for composite materials, usually composed of unsaturated polyester resin, thixotropic agent, filler, styrene, defoamer , leveling agent, etc. are prepared by high-speed dispersion, and can be used for brushing and spraying. Due to the shortcomings of low production efficiency and difficulty in uniform coating, the brushing process is only used by few factories, and it is mainly used to make small products. The mainstream of gel coat construction is the spraying process. The spraying process requires the gel coat resin to have a small viscosity. Therefore, the sprayed gel coat ...

AI Technical Summary

Problems solved by technology

Therefore, during the spraying process and gel coat curing process, a large amount of styrene will volatilize. Generally, from the beginning of spraying to the curing of the gel coat resin, the volatilization of styrene is often greater than 15% of the total weight of the gel coat, which not only wastes a lot , also pollute the environment