A dynamic study on nonlinear viscoelastic behavior of isotactic polypropylene/carbon black composite melts

被引：7

作者：

Huang, Shilin ^{[1
]}

Liu, Zhengying ^{[1
]}

Yin, Chaolu ^{[1
]}

Wang, Yu ^{[1
]}

Gao, Yongjuan ^{[1
]}

Yang, Mingbo ^{[1
]}

机构：

[1] Sichuan Univ, Coll Polymer Sci & Engn, State Key Lab Polymer Mat Engn, Chengdu 610065, Sichuan, Peoples R China

来源：

COLLOID AND POLYMER SCIENCE | 2011年 / 289卷 / 17-18期

基金：

高等学校博士学科点专项科研基金;

关键词：

Aggregation; Filler network; Nonlinear viscoelastic behavior; Composite; Conductivity; SILICA-FILLED POLYMERS; NANOCOMPOSITES; RHEOLOGY; ELASTOMERS; REINFORCEMENT; SPECTROSCOPY; NETWORKING;

D O I：

10.1007/s00396-011-2520-y

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The influence of the filler loading and the kinetic aggregation process on the nonlinear viscoelastic behavior of the isotactic polypropylene/carbon black composite melts is studied. The limit of linearity decreases with increasing filler loading. The composite melt with a percolating rheological network has an additional strain-softening process at the low strains which is attributed to the breakdown of the filler network. The simultaneous measurement of the conductivity during the strain sweep demonstrates that the rheological network is more easy to be broken than the conductive network, and that some of the aggregated structures formed during melt annealing can be retained even after experiencing high strains.

引用

页码：1927 / 1931

页数：5

共 22 条

[11]

Kluppel M, 1997, RUBBER CHEM TECHNOL, V70, P243

[12] Rheology of end-tethered polymer layered silicate nanocomposites [J].