LDPE/硅氧烷接枝共混物的结晶形态与电性能的研究

Study on Crystal Morphology and Electrical Property of Grafted Blends of LDPE/Siloxane

采用硅氧烷对低密度聚乙烯(LDPE)进行接枝改性,用红外光谱分析了LDPE与硅氧烷的接枝反应过程,用显微镜观察了接枝共混物的结晶形态及电树枝形态。结果表明,接枝聚硅氧烷后,LDPE球晶变小,树枝引发示性电压及电气强度提高,电树枝数量减少。

Siloxane was grafted on the low density polyethylene. Infrared spectroscopy was used to analyze the graft reaction of LDPE and siloxane. And microscope was employed to analyze the crystal morphology and electrical tree of the blend. Result showed that the spherulites of LDPE became smaller and inception voltage of electrical tree and breakdown voltage of low density polyethylene were improved after