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介绍以高密度聚乙烯（ＨＤＰＥ） 为基材， 碳黑、二氧化钛（ＴｉＯ２） 为导电填料的有机ＰＴＣＲ材料的制备工艺， 采用γ－６０Ｃｏ 源与电子加速器两种辐射源， 对有机ＰＴＣＲ材料进行辐射改性， 对两种方法进行了初步的比较与研究
The preparation process of organic PTCR material with high density polyethylene (HDPE) as base material and carbon black and titanium dioxide (TiO2) as conductive fillers is introduced. The organic PTCR material is irradiated by γ-60Co source and electron accelerator Modified, the two methods were initially compared and studied