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聚烯烃/纳米碳酸钙复合材料的异常流变行为研究

A Study on Unusual Rheological Behavior of Polyolefin/Nano CaCO₃ Composites

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【Author】 CHEN Xiao yuan 1,2 , WANG Gang 1, FAN Wu yi 1, HUANG Rui 1* (1 Department of Polymer Materials Processing Engineering, Sichuan University, Chengdu 610065, China; 2 Institute of Chemical Materials, Academy of Engineering Physics of China, Mianyang 621900, China)

【机构】四川大学高分子材料加工工程系；四川大学高分子材料加工工程系四川成都610065；中国工程物理研究院化工材料研究所；四川绵阳621900；四川成都610065；四川成都610065；

【摘要】着重研究了聚烯烃 /纳米碳酸钙填充复合材料的异常流变行为。实验发现 ,在较宽范围内 ,纳米粒子分散均匀的情况下 ,填充量越大 ,复合的材料的表观粘度越低 ,流动性越好。经过适量的表面处理后 ,纳米碳酸钙复合材料的临界剪切速率 (应力 )显著增加 ,改善了成型加工性更多还原

【Abstract】 Unusual rheological behavior of polyolefin/nano CaCO 3 composite was studied.For the first time it is found within a wide range and under good dispersion condition,the larger the proportion of nano CaCO 3,the lower the composite apparent viscosity, and the better the fluidness. By proper surface treatment,the critical shear rate(stress)of the composite is enchanced remarkably,and the processability is improved.更多还原