| HALS及抗氧剂对聚丙烯辐射致色的影响 |
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| 引用本文： | 汪辉亮,孔祥波,陈文琇. HALS及抗氧剂对聚丙烯辐射致色的影响[J]. 辐射研究与辐射工艺学报, 1999, 17(2): 70-75 |
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| 作者姓名： | 汪辉亮 孔祥波 陈文琇 |
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| 作者单位： | 北京师范大学化学系,北京,100875 |
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| 基金项目： | 北京师范大学青年科学基金 |
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| 摘 要： | 研究了在辐照条件下受阻胺光稳定剂（ＨＡＬＳ）、各种抗氧剂及ＨＡＬＳ与抗氧剂并用等对聚丙烯（ＰＰ）的黄度（ＹＩ）的影响。实验发现，添加五甲基ＨＡＬＳ的聚丙烯的黄度均小于添加相应的四甲基ＨＡＬＳ的聚丙烯的黄度。当抗氧剂Ｉｒｇａｎｏｘ１０７６和ＰＤＳ并用时，聚丙烯的黄度比单独添加１０７６或ＰＤＳ的聚丙烯的黄度都低。单独添加１０７６的聚丙烯的黄度比添加抗氧剂Ｉｒｇａｆｏｓ１６８或ＩｒｇａｎｏｘＰＳ－８０２的聚丙烯的黄度都小。当ＰＤＳ和Ｉｒｇａｎｏｘ１０７６并用时聚丙烯的黄度小于ＰＤＳ和Ｉｒｇａｆｏｓ１６８或ＩｒｇａｎｏｘＰＳ－８０２并用时的黄度。辐照后聚丙烯的黄度开始随放置时间很快降低，但随时间增加，黄度的变化逐渐减慢，最后基本保持不变。对结果进行了分析和讨论。
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| 关 键 词： | 受阻胺光稳定剂(HALS) 抗氧剂 辐射致色 聚丙烯(PP) |
EFFECT OF HALS AND ANTIOXIDANT ON THE RADIATION-INDUCED DISCOLORATION OF POLYPROPYLENE |
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| WANG Huiliang,KONG Xiangbo,CHEN Wenxiu. EFFECT OF HALS AND ANTIOXIDANT ON THE RADIATION-INDUCED DISCOLORATION OF POLYPROPYLENE[J]. Journal of Radiation Research and Radiation Processing, 1999, 17(2): 70-75 |
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| Authors: | WANG Huiliang KONG Xiangbo CHEN Wenxiu |
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| Abstract: | The effects of hindered amine light stabilizers (HALS), antioxidants and the combination of HALS and antioxidants on the radiation-induced discoloration of polypropylene (PP) are studied. The yellow index ( YI ) of PP added pentamethyl HALS is found to be lower than that of PP added corresponding tetramethyl HALS at the same radiation dose. The YI of PP added antioxidant Irganox 1076 is lower than that of PP added Irgafos 168 or Irganox PS-802. When Irganox 1076 and PDS are used together, the YI of PP is lower than that of Irganox 1076 or PDS used separately. YI of PP decreases with storage time after irradiation. The results are discussed. |
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| Keywords: | Hindered amine light stabilizer(HALS) Radiation-induced discoloration Antioxidant Polypropylene |
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