不同牌号国产高密度聚乙烯共混体系熔体流变性能的研究  

Study on Rheological Behavior of Different Grader of HDPE

作　　者：高峻[1] 

机构地区：[1]成都科技大学高分子研究所

出　　处：《塑料》1995年第3期42-47,共6页Plastics

摘　　要：本文采用德国产ＲＨＥＯＧＲＡＰＨ２００２型高压毛细管流交仪对国产不同牌号高密度聚乙烯共混体系的熔体流变性能进行了研究，结果表明：随温度的升高或７００６Ａ含量增大，５２００Ｂ／７００６Ａ共混物熔体的临界剪切应力和滑移应力增大；随７００６Ａ含量的增加，５２００Ｂ／７００６Ａ熔体粘度及粘度对剪切速率敏感性降低，而温度敏感性增加。Abstract In this paper, the melt viscosity, melt slippage and melt fracture of blends of two different grades of domestic HDPE, 7006A and 5200B, were studied by a high pressure capillary rheometer, RHEOGRAPH 2002. The results showed that as temperature or content of 7006A increasing, the critical shear stress and slippage stress of 5200B/7006A melt increased. The addition of 7006A made both the melt viscosity and its shear rats sensitivity of 5200B/7006A decrease,however,its temperature sensitivity increases.

关 键 词：高密度聚乙烯 共混体系 熔体 流变性 聚乙烯塑料 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]