Development of nanocomposite with epoxidized natural rubber and functionalized multiwalled carbon nanotubes for enhanced thermal conductivity and gas barrier property

被引：39

作者：

Jo, Jae Ok ^{[1
]}

Saha, Prosenjit ^{[1
]}

Kim, Nam Gyeong ^{[1
]}

Ho, Choi Chang ^{[1
]}

Kim, Jin Kuk ^{[1
]}

机构：

[1] Gyeongsang Natl Univ, Dept Mat Engn & Convergence Technol, Gyeongnam 660701, Jinju, South Korea

来源：

MATERIALS & DESIGN | 2015年 / 83卷

关键词：

mwCNTs; Epoxidized natural rubber; Thermal conductivity; Gas barrier property; Nanocomposite; POLYMER NANOCOMPOSITES; MECHANICAL-PROPERTIES; COMPOSITES; METHACRYLATE); DIFFRACTION; KINETICS; WALL;

D O I：

10.1016/j.matdes.2015.06.045

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Multiwalled pristine carbon nanotubes (mwCNTs) were treated with conventional mixed acid to functionalize outer surface of nanotubes with two unique chemical approaches using aminosilane solution and TiO2 dispersion. Pristine and functionalized mwCNTs were dispersed subsequently in matrices of natural rubber (NR)-chlorobutyl rubber (CIIR) and epoxidized natural rubber (ENR)-CIIR to prepare nanocomposites by simple and eco-friendly melt blending method. The effect of surface treatment of mwCNTs, and epoxidation of NR on the composite properties was evaluated for thermal conductivity and gas barrier property. Nanocomposites prepared with surface functionalized mwCNTs and epoxidized NR were found to exhibit greater thermal conductivity and excellent gas barrier properties compared to pristine mwCNT reinforced CIIR-NR nanocomposites. A maximum thermal conductivity was observed for nanocomposite obtained from 20% ENR and 3% (by weight) mwCNTs functionalized with aminosilane. While a maximum gas barrier property was exhibited by nanocomposite with 20% ENR and 3% (by weight) mwCNTs treated with TiO2. Results indicate that the presence of epoxy moieties of ENR provided a stronger network formation between aminosilane treated mwCNT surface and rubber matrices to exhibit higher thermal conductivity and metal oxide particles adhered to TiO2 treated mwCNTs found to impart maximum resistance in transfer of oxygen gaseous molecules nanocomposite. (C) 2015 Published by Elsevier Ltd.

引用

页码：777 / 785

页数：9

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