In this paper, sorbital is used as a kind of nucleator to modify crystalline morphology of PE.Initiation and growing of water treeing and space charge distribution in samples are studied.

• 本文还以三梨糖醇作为成核剂来改善聚乙烯的结晶形态，研究其中水树枝的形成和生长以及空间电荷的分布。