EFFECT OF MOLECULAR WEIGHT OF PDMS ON MORPHOLOGY AND MECHANICAL PROPERTIES OF PP/PDMS BLENDS  

作　　者：张琴 

机构地区：[1]Colloge of Polymer Science and Materials,Sichuan University,State Key Laboratory of Polymer Materials Engineering

出　　处：《Chinese Journal of Polymer Science》2009年第1期137-143,共7页高分子科学（英文版）

基　　金：supported by the National Natural Science Foundation of China (Nos.20404008.50533050 and 20490220);the Special Funds for Major State Basic Research Projects of China (No.2003CB615600).

摘　　要：A series of polydimethylsiloxane (PDMS) with varied molecular weights (M_w=3×10~6,1×10~6 and 0.5×10~6) were melt blended with PP to investigate the effect of PDMS molecular weight (MW) on the morphology and mechanical properties of PP/PDMS blends.Scanning electron microscopic (SEM) examination showed that the size of PDMS domains was dependent on the MW of PDMS.It was found that the lower the value of PDMS MW,the better dispersion of the PDMS domains in the PP matrix.Tensile and Izod impact tests revealed t...A series of polydimethylsiloxane (PDMS) with varied molecular weights (M_w=3×10~6,1×10~6 and 0.5×10~6) were melt blended with PP to investigate the effect of PDMS molecular weight (MW) on the morphology and mechanical properties of PP/PDMS blends.Scanning electron microscopic (SEM) examination showed that the size of PDMS domains was dependent on the MW of PDMS.It was found that the lower the value of PDMS MW,the better dispersion of the PDMS domains in the PP matrix.Tensile and Izod impact tests revealed t...

关 键 词：POLYPROPYLENE POLYDIMETHYLSILOXANE Molecular weight 

分 类 号：O631[理学—高分子化学]