阅读说明：本技术 光伏元件和用于其前板的聚合物组合物 (Photovoltaic element and polymer composition for front sheet thereof ) 是由 S·范米尔卢 M·C·W·范德文 H·N·A·M·斯汀贝克斯-曼廷 R·范吉森 于 2019-07-11 设计创作，主要内容包括：本发明涉及一种包括前层、背层和多个光伏电池的光伏元件,所述光伏电池存在于所述前层与背层之间,其中所述前层由包含以下的聚丙烯组合物组成：a)无规聚丙烯树脂；b)光稳定添加剂的混合物；所述混合物包含：i)具有至少1600g/mol的重均分子量的高分子量受阻叔胺光稳定剂(t-HM-HALS)；ii)具有低于1000g/mol的重均分子量的低分子量受阻仲胺光稳定剂(s-LM-HALS)；iii)紫外增效剂,为正烷基-3,5-二烷基化4-羟基苯甲酸酯；iv)紫外吸收剂,为羟基苯并三唑化合物或羟基二苯甲酮化合物或它们的混合物；c)抗氧化添加剂的混合物；所述混合物包含：i)酚类抗氧化剂；和ii)亚磷酸酯添加剂。本发明还涉及一种聚丙烯组合物和其作为前层的用途。(The invention relates to a photovoltaic element comprising a front layer, a back layer and a plurality of photovoltaic cells, said photovoltaic cells being present between said front layer and back layer, wherein said front layer consists of a polypropylene composition comprising: a) a random polypropylene resin; b) a mixture of light stabilizing additives; the mixture comprises: i) a high molecular weight hindered tertiary amine light stabilizer (t-HM-HALS) having a weight average molecular weight of at least 1600 g/mol; ii) a low molecular weight hindered secondary amine light stabilizer (s-LM-HALS) having a weight average molecular weight of less than 1000 g/mol; iii) an ultraviolet synergist being n-alkyl-3, 5-dialkylated 4-hydroxybenzoates; iv) a UV absorber which is a hydroxybenzotriazole compound or a hydroxybenzophenone compound or a mixture thereof; c) a mixture of antioxidant additives; the mixture comprises: i) a phenolic antioxidant; and ii) a phosphite additive. The invention also relates to a polypropylene composition and its use as a front layer.)