Influence of annealing on rheological and conductive behaviors of high-density polyethylene/carbon black composites

被引：22

作者：

Cao, Qing ^{[1
,2
]}

Song, Yihu ^{[1
,2
]}

Liu, Zhihua ^{[1
,2
]}

Zheng, Qiang ^{[1
,2
]}

机构：

[1] Zhejiang Univ, Dept Polymer Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China

[2] Zhejiang Univ, Key Lab Macromol Synth & Functionalizat, Minist Educ, Hangzhou 310027, Zhejiang, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE | 2009年 / 44卷 / 16期

关键词：

POSITIVE-TEMPERATURE-COEFFICIENT; CARBON NANOTUBE NETWORK; FILLED RUBBER COMPOUNDS; POLYMER COMPOSITES; ELECTRICAL-PROPERTIES; DYNAMIC PERCOLATION; CROSSLINKED POLYETHYLENE; MELTS; AGGLOMERATION; RESISTIVITY;

D O I：

10.1007/s10853-009-3590-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A simultaneous measurement on dynamic viscoelastic and conductive behaviors was carried out to investigate the effect of high temperature annealing on the properties of carbon black (CB) filled high-density polyethylene composites. The results showed that dynamic storage and loss moduli of the composites increased significantly with increasing annealing time, and there existed a liquid- to solid-like transition at a critical time (t (c)) which is dependent on temperature and CB content. Accompanying with the variation in dynamic moduli, electrical resistance (R) decreased sharply with time. What's more, the increase of R could be observed in the long time region. The activation energy determined from t (c) as a function of reciprocal temperature was found to be irrespective of CB content. The evolutions of moduli and R induced by thermal treatment were discussed on the base of the concept of filler flocculation in the melt.

引用

页码：4241 / 4245

页数：5

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