期刊
RSC ADVANCES
卷 3, 期 44, 页码 21484-21488出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ra42704h
关键词
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资金
- National Natural Science Foundation of China (NSFC) [51103032]
- Fundamental Research Funds for the Central Universities [HIT.BRETIV.201304]
This study presents an effective approach to significantly reduce the electrical resistivity of thermally responsive shape memory polymer (SMP) nanocomposites that show Joule heating triggered shape recovery. Carboxylic acid-functionalized carbon nanotubes (CNTs) self-assembled and grafted onto the carbon fibers, were used to enhance the reliability in bonding between the carbon fiber and the SMP via van der Waals and covalent crosslinking, respectively. It was found that the electrical properties of SMP nanocomposites have been improved by the synergistic effect of carboxylic acid-functionalized CNTs and carbon fibers. Furthermore, the electrically responsive recovery behavior and temperature distribution were monitored and characterized. Finally, the molecular structure and temperature dependent electrical behavior were studied, and verified the electro-activated recovery performance of the SMP nanocomposites.
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