摘要
研究了在γ射线辐照条件下受阻胺光稳定剂 (简称HALS)、各种抗氧剂对聚丙烯 (PP)和聚乙烯 (PE)的黄度 (YI)的影响。结果表明五甲基HALS比相应的四甲基HALS更能有效地阻止聚烯烃的辐射致色。抗氧剂Irganox 10 76比Irgafos16 8或IrganoxPS 80 2更有效。当抗氧剂和HALS并用时显示出协同效应 ,10 76和PDS并用时聚丙烯的黄度比单独添加 10 76或PDS的聚丙烯的黄度都低。
The effects of hindered amine light stabilizers (HALS), antioxidants on the radiation induced discoloration of polypropylene (PP) and polyethylene (PE) are studied. Pentamethyl HALS is found to be more effective in preventing the discoloration of PP or PE than corresponding tetramethyl HALS. Antioxidant Irganox 1076 is more effective than Irgafos 168 or Irganox PS 802. Synergistic effect is observed when Irganox 1076 and PDS are used together, the YI of PP added 1076 and PDS is lower than that of PP added Irganox 1076 or PDS separately.
出处
《化学研究》
CAS
2000年第4期19-23,共5页
Chemical Research
基金
北京师范大学青年科学基金
关键词
聚丙烯
聚乙烯
受阻胺类光稳定剂
抗氧剂
辐射致色
polypropylene
polyethylene
hindered amine light stabilizer(HALS)
antioxidant
radiation induced discoloration
