摘要：

在辐射条件下聚丙烯 (PP)中添加受阻胺光稳定剂 (HinderedAmineLightStablilizer简称HALS)、受阻胺自由基及抗氧剂时对聚丙烯的黄度指数 (Yi)的影响 实验发现 ,添加五甲基的HALS聚丙烯的黄度指数均小于添加四甲基HALS的聚丙烯的黄度指数 添加五甲基受阻胺自由基的聚丙烯的黄度指数小于添加四甲基受阻胺自由基的聚丙烯的黄度指数

关键词： 聚丙烯;受阻胺光稳定剂;受阻胺自由基;黄度指数;抗氧剂

Abstract: We researched the effects of adding hindered amine light stablizier(HALS),hindered amine free radical,antioxidant to polypropylene on yellowness index of polypropylene under the irradiation condition.The results showed that the yellowness index of polypropylene added pentanethyl HALS was much less than the polypropylene added tetramethyl HALS;however,yellowness index of polyprophlene added pentamethyl hindered amine free radical was also less than those added tetramethyl hindered amine free radical

Keywords: polypropylene;hindered amine light stablizer(HALS);hindered amine free raical;yellowness indes;antioxidant