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PP/UHMWPE合金的亚微相态与流变性质
引用本文:励杭泉,汪晓东.PP/UHMWPE合金的亚微相态与流变性质[J].高分子材料科学与工程,1994,10(1):113-117.
作者姓名:励杭泉  汪晓东
作者单位:北京化工学院高分子系
摘    要:研究了新型共混合物PP/UHMWPE的流变性能、亚微相态以及这两者之间的关系。发现在低剪切速率下PP/UHMWPE合金熔体的表观粘度、非牛顿指数、流动活化能都具有组成依赖性,但随剪切速率的提高或EPDM的加入,这种依赖性都会消炎。用TEM观察到这种合金材料的亚微相态呈双连续相结构,正是这种双连续相结构引起了上述流变性质的特征变化。

关 键 词:聚丙烯  聚乙烯  塑料合金  流变性

THE MICROMORPHOLOGICAL PROPERTIES OF THE UHMWPE/PP BLEND
Li Hangquan,Wang Xiaodong and Jin Riguang.THE MICROMORPHOLOGICAL PROPERTIES OF THE UHMWPE/PP BLEND[J].Polymer Materials Science & Engineering,1994,10(1):113-117.
Authors:Li Hangquan  Wang Xiaodong and Jin Riguang
Abstract:Rheological behavior, micromorphology and their interrelation in blends of PP/UWHWPE were investigated. It was found that at low shear rates, the apparent viscositiese, power-law indexes and flow activation energies of PP/UHMWPE were dependent on the content of UHMWPE. However the dependence disappeared either when the shear rate was raised or EPDM was added. By TEM morphology of co-continuous phase was observed. It was the co-continuous structure that was responsible for the above strange rheological behaviors.
Keywords:s:blends  dependence  rheological behavior  co-continuous structure    
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