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
收藏
页码：223 / 228
页数：6
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