Effect of nano-CaCO3 on mechanical properties of PVC and PVC/blendex blend

被引：128

作者：

Chen, N ^{[1
]}

Wan, CY ^{[1
]}

Zhang, Y ^{[1
]}

Zhang, YX ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Res Inst Polymer Mat, Shanghai 200240, Peoples R China

来源：

POLYMER TESTING | 2004年 / 23卷 / 02期

关键词：

polyvinyl chloride; calcium carbonate; blendex; mechanical properties;

D O I：

10.1016/S0142-9418(03)00076-X

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The effects of nanoscale calcium carbonate (nano-CaCO3) particles on the mechanical properties of different ductile polymer matrices were investigated. Polyvinyl chloride (PVC) and PVC/Blendex (BLENDEX(R) 338) blend were used as the matrix in this study. The nano-CaCO3 particles were observed to be dispersed uniformly on the nanoscale in both PVC and PVC/Blendex blend by means of transmission electron microscopy. The impact strength, flexural modulus and Vicat softening temperature of PVC and PVC/Blendex blend were significantly enhanced after addition of 0-15 phr nano-CaCO3, but the tensile properties of the two matrices showed different changes in the presence of nano-CaCO3. The yield strength and elongation at break of PVC could be increased by the addition of nano-CaCO3, while those of PVC/Blendex were decreased. Dynamic mechanical thermal analysis showed that the addition of nano-CaCO3 led to an increase in storage modulus and glass transition temperature for both PVC and PVC/Blendex blend. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：169 / 174

页数：6

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