太阳能电池用EVA胶膜的市场及研究进展

摘要

The paper analyzed market and technology of ethylene vinyl acetate(EVA)sun energy battery film.The paper also summarized production,prices changes and new products researched by research institution at home and aboard. The main problem of EVA sun energy battery film is lower anti-aging performance. The film became yellow after it was used for period of time,which decreased the generating electricity efficiency. Technologies at home focused on modification of heat oxygen stability,aging resistance. Aiming at the deficiency of EVA film at home,producer should follow the requirement of market tightly,develop high grade level and special purpose material of sun energy battery film,lower dependence degree on import.%分析了国内外太阳能电池用乙烯-乙酸乙烯共聚物（EVA）胶膜的市场及研究进展，对EVA胶膜的国内外生产情况、价格以及国内研究机构对新产品的研发现状进行了综述。国产EVA胶膜存在的问题主要是抗老化性能差，使用一段时间后，会出现黄变，从而降低了太阳能的转换效率。国内对EVA的研究主要集中在提高EVA胶膜的热氧稳定性、耐老化性能等方面。针对国内EVA胶膜的技术劣势，指出EVA生产厂家需紧跟市场需求，开发高质量等级EVA胶膜专用树脂，降低进口依存度。