Conductive polymer blends filled with carbon black: Positive temperature coefficient behavior

被引：51

作者：

Yu, G

Zhang, Q ^{[1
]}

Zeng, HM

Hou, YH

Zhang, HB

机构：

[1] Zhongshan Univ, Inst Mat Sci, Guangzhou 510275, Peoples R China

[2] Zhongshan Univ, State Educ Commiss China, Lab Polymer Composite & Funct Mat, Canton 510275, Peoples R China

来源：

POLYMER ENGINEERING AND SCIENCE | 1999年 / 39卷 / 09期

关键词：

D O I：

10.1002/pen.11562

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Electrical conductivity and positive temperature coefficient (PTC) behavior of carbon black (CB) filled incompatible polyblends of ethylene-vinyl acetate copolymer/low density polyethylene (EVA/LDPE) were investigated. In comparison with single polymer systems, more possibilities for tailoring composite performance were brought about with the employment of polymer blends as matrix resins in conductive composites. Based on the concepts of double percolation and two-step percolation, PTC-type composites with balanced performance, improved processability, and reproducibility can be made. Thermodynamical and kinetic factors including interfacial energy, melt viscosity, blending ratio, melt mixing time, sequence of blending as well as CB concentration were shown to be closely related to the ultimate properties obtained.

引用

页码：1678 / 1688

页数：11

共 24 条

[1]

KOHLER F, 1966, Patent No. 3234753

[2] MULTIPLE PERCOLATION IN CONDUCTING POLYMER BLENDS [J].