本文利用电声脉冲法研究了4种极性分子添加物对聚乙烯中空间电荷形成的影响.试验结果表明,乙烯-丙烯酸共聚物(EAA)和 BaTiO3对聚乙烯中空间电荷的形成有较明显的抑制作用.最后用添加物分子的基团偶极矩数据对抑制聚乙烯中空间电荷效应做出了一定的解释.
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