This presentation covers the fabrication; characterization and potential application of electro activate shape memory polymer (SMP) containing multi-walled carbon nanotubes (MWCNTs), hybrid fillers of carbon black (CB) and short carbon fiber (SCF), and magnetic Ni power. The electrical conductivity of 8 wt% MWNTs composite is 1.25 x 10–2 S/cm with dimension of 8.0 cm x 2.0 cm x 0.2 cm rectangle sheet, it can be triggered by passing an electrical current with a constant voltage of 200 V. While, the electrical conductivity of the composite, containing 5 wt% CB and 2 wt% SCF, reaches to 3 S/cm. Their shape recovery can be induced by passing an electrical current of 25 V voltages. SMP filled with 10 vol% Ni, induced by 20 V. Then temperature-dependent resistivity test is done to investigate the thermo-sensitive effects in conducting polymer composite, and it shows a classical negative temperature coefficient (NTC) effect ranged from 70°C to 90°C. Thus smart thermal sensor using conducting SMP composite can be realized through resistivity change.
Shape Memory Nanocomposite and Its Application
11th Biennial ASCE Aerospace Division International Conference on Engineering, Science, Construction, and Operations in Challenging Environments ; 2008 ; Long Beach, California, United States
Earth & Space 2008 ; 1-8
2008-09-04
Conference paper
Electronic Resource
English
Shape memory alloy application (SMA)
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