▎ 摘　　要

NOVELTY - Preparing weather-resistant photovoltaic back plate material involves dissolving polyvinylpyrrolidone in anhydrous ethanol and binder, and subjected to ultrasonic dispersion to obtain viscous liquid. The aluminum powder and graphene powder followed by adding viscous liquid, and then added to deionized water seal reaction is carried out for 2-4 hours after cooling to obtain a mixture. The obtained mixture is placed in a vacuum distillation kettle reaction 2-5 hours, naturally cooled to room temperature, to obtain a suspension concentrate. USE - Method for preparing weather-resistant photovoltaic back plate material (claimed). ADVANTAGE - The method enables to prepare weather-resistant photovoltaic back plate material, which has high compressive strength and long service life, and good conductivity, and water vapor isolation performance. DETAILED DESCRIPTION - Preparing weather-resistant photovoltaic back plate material involves dissolving polyvinylpyrrolidone in anhydrous ethanol and binder, and subjected to ultrasonic dispersion to obtain viscous liquid. The aluminum powder and graphene powder followed by adding viscous liquid, and then added to deionized water seal reaction is carried out for 2-4 hours after cooling to obtain a mixture. The obtained mixture is placed in a vacuum distillation kettle reaction 2-5 hours, naturally cooled to room temperature, to obtain a suspension concentrate. The obtained suspension concentrate is coated to Teflon sheet, and placed in a reaction kettle gradient heated for 2-4 hours, after cooling to obtain a crude back sheet. The obtained back of the crude product for the second coating, and dried under reduced pressure to obtain a weather-resistant photovoltaic back plate material.