POE/轻质CaCO_3填充体系的力学、流变性能研究  

Study on Mechanical Property and Rheological Behaviour of Filling System of POE/CaCO_3

作　　者：熊忠[1] 李鹏[1] 尹文艳[1] 陈骁[1] 王淑英[1] 吴其晔[1] 

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《特种橡胶制品》2005年第1期22-24,38,共4页Special Purpose Rubber Products

摘　　要：用轻质CaCO3填充新型聚烯烃弹性体POE,研究了填充体系的力学性能和流变性能随CaCO3含量变化的规律。发现随CaCO3填充量增加至40份,体系拉伸强度下降,拉断伸长率变化不大,冲击回弹性下降,邵氏硬度上升。POE8150/CaCO3的拉伸强度、邵氏硬度比POE8003/CaCO3小,前者的拉断伸长率、冲击回弹性大于后者。POE8150/CaCO3的流动曲线表明体系的整体流动性较好,可以较快地剪切速率挤出,CaCO3的加入使流动性变差。Light calcium carbonate were filled into new-type polyolefin elastomer(POE),and the influences of the CaCO_3 content on the mechanical properties and rheological behavior of the system were investigated. The results showed that with the content of CaCO_3 increasing to 40 phr, the tensile strength and impact resilience decreased, the elongation at break varied little and the hardness increased. The tensile strength and Shore A hardness of POE 8150/CaCO_3 system were lower than that of POE 8003/CaCO_3, and the elongation at break and impact resilience of the former were larger than that of the latter. The flowing curves of POE 8150/CaCO_3 indicated that the fluidity of the system was good and it could be extrudated with quick viscosity, but the filling CaCO_3 made the fluidity worse.

关 键 词：聚烯烃弹性体POE 轻质碳酸钙 力学性能 流变性能 

分 类 号：TQ330.16[化学工程—橡胶工业]