Glass fiber reinforced plastic gel-coated plate and preparation method thereof

Abstract

The invention discloses a glass fiber reinforced plastic gel-coated plate and a preparation method thereof. The glass fiber reinforced plastic gel-coated plate sequentially comprises a polyester film layer, a gel coating resin layer and a glass fiber reinforcement layer from bottom to top. Gel coating resin adopted in the gel coating resin layer is prepared from, by weight, 100 parts of unsaturated polyester resin A, 8 parts of pigment paste, 1.0-2.5 parts of methyl ethyl ketone peroxide and 0.5-1.4 parts of cobalt naphthenate. The glass fiber reinforced plastic gel-coated plate sequentially comprises the polyester film layer, the gel coating resin layer and the glass fiber reinforcement layer from bottom to top, has good mechanical performance, is high in strength and good in corrosion resistance and weather fastness, and is bright, clean and bright in appearance; a polyester film is adopted as a mold, a release agent does not need to be smeared before manufacturing, production efficiency is improved, and cost is reduced. The preparation method of the glass fiber reinforced plastic gel-coated plate is high in production efficiency, high in product quality and good in product quality stability; the process is simple, operation is convenient, and the preparation method is suitable for large-scale industrial production.

Description

technical field [0001] The invention belongs to the technical field of glass fiber reinforced plastics, and in particular relates to a glass fiber reinforced plastic gel-coated board and a preparation method thereof. Background technique [0002] FRP (Fiberglass Reinforced Plastics, FRP, Fiber Reinforced Plastics) is a composite material that uses glass fiber and its preparation of glass cloth, tape, felt, yarn, etc.) as a reinforcing material and synthetic resin as a matrix material. According to the different types of resin used, it can be divided into polyester FRP, epoxy FRP, phenolic FRP and so on. FRP has the advantages of light weight but hard, non-conductive, corrosion-resistant, etc. It can replace steel to make machine parts, automobile and ship shells, etc. [0003] The production methods of FRP are basically divided into two categories, namely wet contact type and dry contact type; the commonly used methods mainly include hand lay-up method, spray method, moldin...

AI Technical Summary

Problems solved by technology

The existing FRP gel-coated sheets are mainly hand-laid up. The production efficiency of the hand-laid-up method is low, the production cycle is long, and it is not suitable for large-scale industrial production; the quality of the obtained FRP products is greatly affected by the skill level of the operator, and the quality is unstable. , poor mechanical strength