纳米CaCO_3填充新型聚烯烃弹性体POE的力学、流变性能研究  

Studies on mechanical and rheological properties of new-type polyolefin elastomer POE filled with nano-CaCO_3

作　　者：熊忠[1] 陈骁[1] 韩高亮[1] 王晓林[1] 王淑英[1] 吴其晔[1] 

机构地区：[1]青岛科技大学高分子科学与工程学院,山东青岛266042

出　　处：《弹性体》2005年第2期14-18,共5页China Elastomerics

基　　金：国家自然科学基金资助项目(50273016)

摘　　要：用纳米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纳米CaCO3含量变化的规律。发现纳米CaCO3填充量增加至40份时,体系仍具有良好的力学强度,流动性变化很小。从流动曲线上发现了一些反常现象,即随纳米CaCO3含量增加,体系粘度降低,粘切敏感性降低,非牛顿性减弱,推断这种反常的现象应该与纳米CaCO3纳米级的尺寸和立方体形的结构有关。Nano-calcium carbonate was filled into new-type polyolefin elastomer,and the influences of nano-calcium carbonate content on the mechanical properties and rheological behavior of the system were investigated.The results showed that when the content of nano-CaCO_3 reached 40 phr,the system kept having good mechanical properties,and the rheological behavior changed little.From the rheological curve,some abnormal phenomena were found,which indicated that with the increasing of nano-CaCO_3 content,the viscosity of POE/nano-CaCO_3 system decreased,the viscosity-shear sensitivity decreased,and non-Newton character weakened.It was concluded that the phenomena were related with the nano-meter dimension and cuboid shape of nano-CaCO_3.

关 键 词：纳米CACO3 聚烯烃弹性体 POE 性能研究 CaCO3含量 含量变化 流变性能 力学性能 填充体系 力学强度 反常现象 流动曲线 粘度降低 非牛顿性 填充量 流动性 敏感性 纳米级 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业] TQ334.2