Multifunctional and environmentally friendly nanocomposites between natural rubber and graphene or graphene oxide

被引：92

作者：

Matos, Carolina F. ^{[1
]}

Galembeck, Fernando ^{[2
]}

Zarbin, Aldo J. G. ^{[1
]}

机构：

[1] Univ Fed Paraiba UFPR, Dept Quim, Curitiba, Parana, Brazil

[2] Univ Estadual Campinas UNICAMP, Inst Quim, Campinas, SP, Brazil

来源：

CARBON | 2014年 / 78卷

基金：

巴西圣保罗研究基金会;

关键词：

DYNAMIC-MECHANICAL BEHAVIOR; GAS BARRIER PROPERTIES; CARBON NANOTUBES; THERMAL-DEGRADATION; RAMAN-SPECTROSCOPY; AQUEOUS-MEDIUM; COMPOSITES; PARTICLES; POLYMERS; BLENDS;

D O I：

10.1016/j.carbon.2014.07.028

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This work describes a green route to multifunctional nanocomposite materials composed of natural rubber (NR) latex and graphene (rGO) or graphene oxide (GO). Aqueous solutions with different concentrations of GO and rGO (prepared with the surfactant cetyltrimethylammonium bromide - CTAB) were mixed with natural rubber latex under magnetic stirring followed by sonication. The slurries obtained after casting were dried in an oven in air at 70 degrees C for 24 h. The nanocomposites were characterized by TEM and SEM, AFM and KFM. The thermal, electrical and mechanical properties were evaluated using TGA, resistivity measurements (four-point) and DMA. Swelling tests were performed using three solvents with different polarities: xylene, isopropanol and water. The inclusion of filler networks in the polymeric matrices provided significant improvements in the electrical, chemical and mechanical properties, in comparison to the unfilled polymer. In addition, the nanocomposites proved to be biodegradable. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：469 / 479

页数：11

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