可光降解聚乙烯薄膜中光敏剂的研制

介绍了可降解塑料光敏剂硬脂酸过渡金属盐（RSt3）的研制，用红外光谱，DSC，TGA，力学性能测试等分析手段对其进行了表征，并对硬脂酸盐在聚乙烯薄膜中的光降解性能作了一定的探讨，结果表明，在聚乙烯薄膜中加科0．1％-0．5％RSt3即可将聚乙烯薄膜的使用寿命控制在要求的范围内。

This paper introduced the synthesis of RSt3, characterized it with Infraredspectrum, DSC, TGA, etc, and analysed the photodegradability of PE film with RSt3.The results show that the useful life of PE can be controlled as the concentration of the pho-tosensitiser is about 0. 1% ~ 0. 5%.