Effect of polyaniline functionalized carbon nanotubes addition on the positive temperature coefficient behavior of carbon black/high-density polyethylene nanocomposites

被引：24

作者：

Kalappa, Prashantha ^{[1
]}

Lee, Joong-Hee ^{[1
]}

Rashmi, Baralu Jagannatha ^{[2
]}

Venkatesha, Thimmaiah Venkatarangaiah ^{[2
]}

Pai, Karkala Vasantakumar ^{[2
]}

Xing, Wang ^{[3
]}

机构：

[1] Chonbuk Natl Univ, Sch Adv Mat Engn, Jeonju 561756, South Korea

[2] Kuvempu Univ, Sch Chem Sci, Shimoga 577451, Karnataka, India

[3] Qingdao Univ Sci & Technol, Key Lab Rubber Plast, Qingdao, Peoples R China

来源：

IEEE TRANSACTIONS ON NANOTECHNOLOGY | 2008年 / 7卷 / 02期

关键词：

carbon black (CB); carbon nanotube (CNT); electrical properties; polyaniline (PANI); polymer nanocomposites; positive temperature coefficient (PTC);

D O I：

10.1109/TNANO.2007.914994

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The influence of addition of polyaniline functionalized multiwalled carbon nanotubes (PANI-MWNTs) on the positive temperature coefficient (PTC) characteristics of carbon black (CB) filled high-density polyethylene (HDPE) nanocomposite materials have been studied. Polymer nanocomposites were prepared by the combined solution and melt-mixing process. The experimental results showed that the PTC intensity and maximum resistivity of the hybrid nanocomposites were obviously influenced by the polyaniline functionalization of multiwalled carbon nanotubes (MWNTs). A noticeable PTC of resistivity was observed for PANI-MWNTs/CB/HDPE hybrid nanocomposites near the melting point of HDPE. This is due to the significant volume expansion near the melting point of the HDPE in presence of hybrid fillers and a sudden increase of the resistivity due to the disconnection of the conductive paths. The PTC effect of CB/HDPE composites can be effectively modified by the addition of PANI-MWNTs.

引用

页码：223 / 228

页数：6

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