Isothermal crystallization of polyethylene/montmorillonite nanocomposites prepared by in situ polymerization
Polyethylene/montmorillonite (PE/MMT) nanocomposites were prepared by in situ polymerization.The isothermal crystallization of PE/MMT nanocomposites at different MMT concentration (from 0.1 wt % to 1.2 wt %) was investigated by differential scanning calorimetry (DSC).The crystallization kinetics shows that the Avrami exponent of PE/MMT nanocomposites is decreased compared with pure PE,which indicates a decrease in the crystal growth dimension.This is attributed to the stems of PE crystals confined in the MMT layers.The crystallization rates of PE/MMT nanocomposites are faster than those of pure PE.However,when the content of MMT increases from 0.1 wt % to 1.2 wt %,the crystallization rate of PE/MMT nanocomposites is decreased.
High-density polyethylene montmorillonite nanocomposite crystallization kinetics
Min Li Liguang Xiao Hongkai Zhao
College of material science and engineering, Jilin Architectural and Civil Engineering Institute,Changchun, Jilin, 130118, China
国际会议
香港
英文
42-45
2012-12-11(万方平台首次上网日期,不代表论文的发表时间)