Effects of Chlorinated Polyethylene on Internal Partial Discharge Resistance of Polyethylene

本研究研究了含有卤化不可燃剂的聚合物样品的内部放电电阻特性，预期了观察到的卤化聚合物产生的放电劣化产物对放电行为的影响。样品由聚乙烯(PE)和氯化聚乙烯(CPE)混合而成。样品中CPE在PE中的重量百分比为0-60%。采用点平面法和人工孔洞法对试件的劣化寿命进行了测试。用平行板电极法测量了几个电参数。从本实验中可以得出以下结果。结果表明：1.在常压条件下，将CPE掺入PE中并不能改善PE的局部放电性能。通过在PE中加入CPE，提高了PE的内放电电阻。这是由于CPE产生的氯化物质抑制了放电和样品与活性放电剂之间的反应。与其他类型的CPE相比，40%的CPE混合率和低临界的CPE对改善内放电电阻更有效。

This research studied the internal discharge resistance properties of polymeric samples incorporating halogenated nonflamable agents, We expected the observed effects on discharge behavior of the discharge deterioration products generated from the halogenated polymer. The sample was prepared by mixing polyethylene (PE) with chlorinated polyethylene (CPE). The samples contained 0-60% by weight of CPE in PE. The deterioration life was tested using the sample with point-plane and artificial void method. Several electrical parameters were measured with parallel -plate electrode method.The following results may be drawn from the present experiments.1. The partial discharge resistance of PE is not improved by mixing CPE into PE under open atmospheric condition.2. The internal discharge resistance of PE is improved by mixing CPE into PE.3. The improvement is due to the restraint of the discharge and the reaction between sample and activated discharge agents by chlorinated substance arising from CPE.4. The CPE mixing rate of 40% and low cristalin CPE is more effective for the improvement of internal discharge resistance than other type of CPE.