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Surface coating of multi-walled carbon nanotube nanopaper on shape-memory polymer for multifunctionalization |
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| Authors: | Haibao Lu Yanju LiuJihua Gou Jinsong Leng Shanyi Du |
| Affiliation: | a Center for Composite Materials and Structures, Harbin Institute of Technology, Harbin 150001, China b Department of Mechanical, Materials and Aerospace Engineering, University of Central Florida, Orlando, 32816 FL, USA c Department of Aerospace Science and Mechanics, Harbin Institute of Technology, Harbin 150001, China |
| Abstract: | We are presenting a method of synthesizing three-dimensional self-assembled multi-walled carbon nanotube (MWCNT) nanopaper on hydrophilic polycarbonate membrane. 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. As a consequence, the sensing properties of conductive MWCNT nanopaper are characterized by functions of temperature and water content. Meanwhile, in combination with shape-memory polymer (SMP), the conductive MWCNT nanopaper facilitates the actuation in SMP nanocomposite induced by electrically resistive heating. Furthermore, the actuating capability of SMP nanocomposite is utilized to drive up a 5-gram mass from 0 to 30 mm in height. |
| Keywords: | A. Carbon nanotubes A. Nano composites B. Electrical properties B. Surface treatments |
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