Study on the Preparation and Properties of Multiwall Carbon Nanotube Reinforced Biodegradable Polymer Blend

Abstract:

The preparation of multi-walled carbon nanotube/polylactide (PLA)/Ecoflex^® biodegradable composites is described. Three modifiers, maleic anhydride ,methyl methacrylate and vinyltrimethoxysilane , were utilized to modify multiwall carbon nanotube. The dispersion of multi-walled carbon nanotube was enhanced by covalent or hydrogen bonding between modified multi-walled carbon and biodegradable blend. The tensile strengths of pristine PLA/Ecoflex^® resin and 4 wt% modified multi-walled carbon composites are 68 kgf/cm² and 257 kgf/cm², respectively (representing a difference of 380%). High electrical conductivity can be achieved at a low carbon nanotube loading. When 1wt% modified multi-walled carbon was added to PLA/Ecoflex^® matrix, the surface resistance of the composite fell from 1.46×10¹⁶ to 7.88 × 10² Ω/Υ (by 10¹³ order).

• Periodical: Advanced Materials Research (Volumes 239-242)
• Pages: 145-149
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.239-242.145
• Online since: May 2011
• Authors: Hsin Chih Peng, Chen Feng Kuan, Chia Hsun Chen, Kun Chang Lin, Hsu Chiang Kuan
• Keywords: Carbon Nanotube (CN), Electrical Properties, Interface, Mechanical Property

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