Polyvinylidene fluoride high-anti-UV color fluorine film for photovoltaic industry and preparation method of color fluorine film

Abstract

The invention discloses a polyvinylidene fluoride high-anti-UV color fluorine film for photovoltaic industry and a preparation method of the color fluorine film. The color fluorine film comprises thefollowing specific materials: 70-90% of polyvinylidene fluoride, 10-30% of polymethyl methacrylate, 1-20% of an inorganic or organic pigment, 1-5% of an impact-resistant modifier, 0.1-2% of a BASF UVcut-off agent, 0.1-2% of an antioxidant, and 0.1-5% of a paraffin dispersant. The product prepared by the method shields damage to the inner layer of a component by ultraviolet rays, blocks erosion ofthe inner layer material by water vapor, replaces outer-layer glass to reduce the overall weight of the component, and can be directly bound to a wall, increase the use area, and prevent light pollution caused by light reflection; the technical requirements of the photovoltaic film are high enough, so that the film can be used as a protective film of an outer wall, the color is beautiful, and thefilm is bonded with materials such as a PVC substrate, a marble substrate and bamboo fibers, has a simple whole processing technology, and is suitable for mass production.

Description

technical field [0001] The invention relates to the technical field of new materials, in particular to a polyvinylidene fluoride high-ultraviolet-resistant colored fluorine film for photovoltaics. Background technique [0002] Polyvinylidene fluoride (PVDF) is a highly non-reactive thermoplastic fluoropolymer. Its applications are mainly concentrated in the three major fields of petrochemical, electrical and electronic and fluorocarbon coatings. Fatigue and creep resistance, it is one of the best materials for pumps, valves, pipes, pipe fittings, storage tanks and heat exchangers in petrochemical equipment fluid handling systems or linings. The good chemical stability and electrical insulation properties of PVDF enable the manufactured equipment to meet TOCS and flame retardant requirements. It is widely used in the storage and transportation of high-purity chemicals in the semiconductor industry. Porous membranes, gels, Separators, etc., are used in lithium secondary batte...

AI Technical Summary

Problems solved by technology

[0003] At present, almost all polyvinylidene fluoride fluoride films on the market are white, and when used in photovoltaic or other scenes, light reflection is easy to cause light pollution, and the service life of traditional colored films is poor, generally only about 5 years will cause fading or damage, and The permeability resistance is poor, and the traditional preparation process is complicated and the cost is high. Therefore, here we propose a polyvinylidene fluoride high UV-resistant color fluorine film for photovoltaics