Unsaturated polyester resin for machine-made or hand-pasted plane skylight and preparation method thereof

Abstract

The invention relates to the technical field of preparation of high polymer materials, in particular to unsaturated polyester resin for a machine-made or hand-pasted plane skylight and a preparation method thereof. The preparation method comprises the following steps of: undergoing an esterification reaction on organic polylol, saturated or unsaturated polyatomic acid or acid anhydride and a monofunctional compound in the presence of catalyst; and dissolving a polymer prepared by condensing in inhibitor-containing cinnamene to obtain the unsaturated polyester resin. The invention has the advantages that the unsaturated polyester resin is prepared from lower-cost raw materials and has low preparation cost; and lower viscosity and good glass fiber wetting property are achieved while the strength is ensured. The resin and the compound of the resin can be widely applied to products, such as automobile parts, gel coatings, artificial stones and the like with higher requirements on weather resistance, in particular to weather-resistant plates.

Description

Technical field [0001] The invention relates to the technical field of polymer material preparation, in particular to an unsaturated polyester resin used for machine-made or hand-laid lighting boards and a preparation method thereof. Background technique [0002] Unsaturated polyester resin is one of the most commonly used thermosetting resins. Because of its simple production process and excellent mechanical, electrical, corrosion resistance and other properties of the product, it is one of the most used types of thermosetting resin and FRP composite products. . [0003] Many glass fiber reinforced plastic composite products of unsaturated resin will be used outdoors, and will be exposed to sunlight, solvent or water erosion, which will cause a series of problems such as degradation, bubbles, bulging, color loss, fogging or yellowing. Daylighting panels made of resin and glass fiber are often used for lighting on the walls of industrial plants, heat preservation and lighting for ...

AI Technical Summary

Problems solved by technology

[0004] The patents and documents currently reported are mainly aimed at the appearance design of daylighting panels. The selection and design of resin materials are still relatively lacking, and the water and weather resistance of existing products is relatively limited. Therefore, the development of resins with excellent weather resistance effects for daylighting panels is of great significance