▎ 摘　　要

NOVELTY - ETFE film panel for perovskite flexible solar panel, comprising ETFE resin, functional additive, graphene, antistatic agent, anti-stretching agent, and flame retardant; the melting index of the ETFE is 15 to 25, the functional additive comprises conventional fluorine plastic additive, conventional engineering additive. the ETFE resin, functional additive, graphene, antistatic agent, the dosage of the anti stretching agent, and flame retardant comprises 100: 10-20: 3-5: 1.5-2.5: 5-8: 4-6. USE - The ETFE film panel is useful for perovskite flexible solar panels. ADVANTAGE - The ETFE film panel is simple to operate, the thickness and quality of the product are controllable, the preparation technology is easy to master, and the obtained ETFE thin-film panel for perovskite flexible solar panels has high-temperature resistance, good chemical resistance, weather resistance, light penetration, stretch resistance, non-stickiness, insulation, and the film panel does not contain dust and other impurities and has good product quality. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparation method of ETFE film panel for perovskite flexible solar panel, comprising (i) adding ETFE resin into the high-speed mixer, functional additive, graphene, antistatic agent, anti-stretching agent, and flame retardant and mixing, (ii) adding the mixed material into the screw extruder, heating to 190-230 degrees C, melting and extruding, forming film by flat mold, (iii) cooling the formed film at 90-120 degrees C by a cooling roller, and drying in a vacuum; (iv) cooling again for 10-20 degrees C; hardening film, using the roller with an adhesive layer to press the surface of the film, adhering dust by the roller, and (v) trimming and rolling to obtain ETFE film panel.