Research on the Conductive Property of CNT Nanopaper Facilitates the Actuation in Shape Memory Polymer Composites

Abstract:

A method of synthesizing three-dimensional self-assembled multi-walled carbon nanotube (MWCNT) nanopaper on hydrophilic polycarbonate membrane was investigated. In combination with shape-memory polymer (SMP), the conductive MWCNT nanopaper facilitates the actuation in SMP composite induced by electrically resistive heating. The process is based on the very well-defined dispersion of nanotube and controlled pressure vacuum deposition procedure. The morphology and structure of the nanopaper are characterized with scanning electronic microscopy (SEM) over a wide range of scale sizes. A continuous and compact network observed from the microscopic images indicates that the MWCNT nanopaper could have highly conductive property. The experiment results show that the electrical resistivity of MWCNT nanopaper decreased as temperature increase. SMP composites recovery from a fixed benting shape to the oroginal shape under a constant DC voltage.

• Periodical: Advanced Materials Research (Volumes 887-888)
• Pages: 112-115
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.887-888.112
• Online since: February 2014
• Authors: A Ying Zhang*
• Keywords: Carbon Nanotube (CN), Composite, Conductive Properties, Nanopaper, Shape Memory Polymer

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