The photodegradation of LDPE films with different contents of ferric salt was evaluated by measuring the reserved elongation at break,surface structure,molecular weight and gel content.

• 测定了铁盐/低密度聚乙烯(LDPE)薄膜的断裂伸长率保留率、表面结构、分子量和凝胶量,研究了不同添加量的铁盐对LDPE光降解的促进和抑制的双重作用。