Carbon nanofiber/polyethylene nanocomposite: Processing behavior, microstructure and electrical properties

被引：43
作者：
Al-Saleh, Mohammed H. [1 ]
Gelves, Genaro A. [2 ]
Sundararaj, Uttandaraman [2 ]
机构：
[1] Jordan Univ Sci & Technol, Dept Chem Engn, Irbid 22110, Jordan
[2] Univ Calgary, Schulich Sch Engn, Dept Chem & Petr Engn, Calgary, AB T2N 1N4, Canada
来源：
MATERIALS & DESIGN | 2013年 / 52卷
关键词：
Composite material; Microstructure; Polymers; Electrical conductivity; POLYMER BLENDS; SHIELDING EFFECTIVENESS; CONDUCTIVE COMPOSITES; THERMOPLASTIC COMPOSITES; THERMAL-CONDUCTIVITY; NANOFIBER COMPOSITES; NANOTUBE COMPOSITES; FIBER COMPOSITES; POLYETHYLENE; BLACK;
D O I：
10.1016/j.matdes.2013.05.038
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Electrically conductive polymer nanocomposite of high density polyethylene (HDPE) filled with carbon nanofibers (CNFs) were prepared by melt compounding in a batch mixer. The nanocomposite processing behavior was studied by monitoring the mixing torque vs. time as function of filler content. Scanning electron microscopy and optical microscopy were used to investigate the nanocomposite dispersion of nanofiller and the adhesion between the nanofiller and polymer matrix. The electrical and electromagnetic interference (EMI) shielding behaviors of the nanocomposite were reported as function of nanofibers concentration, and an empirical correlation related the EMI SE to the nanocomposite's electrical resistivity was developed. Good level of CNF dispersion was evident despite the poor adhesion exhibited between the nanofibers and the HDPE matrix. At 1.5 vol% CNF loading, the nanocomposite exhibited an electrical volume resistivity of 10(5) Omega.cm. EMI shielding effectiveness was found to increase with increase in nanofiller concentration. In the 0.1-1.5 GHz frequency range, 2 mm thick plate made of 5 vol% CNF/HDPE nanocomposite exhibits an EMI shielding effectiveness of 20 dB. (C) 2013 Elsevier Ltd. All rights reserved.
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页码：128 / 133
页数：6
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