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聚烯烃氧化诱导期的测试

  • time:2020-07-10
  • Source: This site
  • Popularity:1015
聚烯炷材料通常用作电缆及光缆的护套和绝 缘,聚烯炷材料护套和绝缘的热氧化稳定性能可以 用来判断电缆及光缆的使用寿命。氧化诱导期 (Oxidative Induction Time, OIT)是稳定化材料耐 氧化分解的一种相对量度,是对材料稳定化水平的 一种评价。通过将加有抗氧化稳定剂的试样置于特 定温度的氧气流下,测量从通氧与氧化反应之间的 时间间隔,来确定材料的OIT。一般可用差示扫描 量热法(Differential Scanning Calorimetry, DSC)来 简单快速地测量。文件下载
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