Title

Synergistic effect of Ag nanoparticle-decorated graphene oxide and carbon fiber on electrical actuation of polymeric shape memory nanocomposites

Authors

Authors

H. B. Lu; F. Liang; J. H. Gou; J. S. Leng;S. Y. Du

Comments

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Abbreviated Journal Title

Smart Mater. Struct.

Keywords

shape memory polymer; electrical properties; graphene oxide; STIMULI-RESPONSIVE POLYMERS; FUNCTIONALIZED GRAPHENE; BIOMEDICAL; APPLICATIONS; NANOPAPER; SHEETS; NANOTUBES; GRAPHITE; Instruments & Instrumentation; Materials Science, Multidisciplinary

Abstract

This study reports an effective approach of significantly improving electrical properties and recovery performance of shape memory polymer (SMP) nanocomposite, of which its shape recovery was triggered by electrically resistive Joule heating. Reduced graphene oxide (GOs) self-assembled and grafted onto carbon fiber, were used to enhance the interfacial bonding with the SMP matrix via van der Waals force and covalent bond, respectively. A layer of Ag nanoparticles was synthesized from Ag+ solution and chemically deposited onto GO assemblies. These Ag nanoparticles were expected to bridge the gap between GO and improve the electrical conductivity. The experimental results reveal that the electrical conductivity of the SMP nanocomposite was significantly improved via the synergistic effect between Ag nanoparticle-decorated GO and carbon fiber. Finally, the electrically induced shape memory effect of the SMP nanocomposite was achieved, and the temperature distribution in the SMP nanocomposites was recorded and monitored. An effective approach was demonstrated to produce the electro-activated SMP nanocomposites and the resistive Joule heating was viable at a low electrical voltage below 10 V.

Journal Title

Smart Materials and Structures

Volume

23

Issue/Number

8

Publication Date

1-1-2014

Document Type

Article

Language

English

First Page

7

WOS Identifier

WOS:000341021600034

ISSN

0964-1726

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