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|標題:||Preparation and properties of biodegradable PBS/multi-walled carbon nanotube nanocomposites||作者:||Shih, Y.F.
|關鍵字:||Multi-walled carbon nanotubes;Biodegradable;Poly(butylene succinate);poly(butylene succinate);electrical-properties;composites;polymerization;matrix;crystallization;conductivity;morphology;dispersion||Project:||Polymer||期刊/報告no：:||Polymer, Volume 49, Issue 21, Page(s) 4602-4611.||摘要:||
In this study, poly(butylene succinate)/multi-walled carbon nanotube (PBS/MWNT) hybrids were prepared by a melt-blending process. The carbon nanotubes (CNTs) were successfully modified using N,N'-dicyclohexylcarbodiimide (DCC) dehydrating agents. As a result, excellent dispersion of the modified carbon nanotubes (CNT-C18) in organic solvents was achieved. Subsequently, the PBS/CNT nanocomposites were prepared through facile melt blending. Mechanical properties, thermal behavior, conductivity of these resultant polymer/CNT composites were investigated. The results obtained show that the PBS/CNT-C18 nanocomposites consisting of well-dispersed nanotubes exhibited enhanced thermal and mechanical properties. With the addition of 3 wt% CNT-C18, T-d of the nanocomposite increased 12.3 degrees C as compared to that of the pristine PBS sample. Moreover, the increments of E' and E '' of the nanocomposite at 25 degrees C were 120 and 55%, respectively. In the aspect of conductivity, the surface resistivity of the PBS/CNT-C18 composite was found to be 7.30 x 10(6) Omega, which is a decrease of 109 fold in value as compared to that of the pristine PBS sample. Such PBS/CNT-C18 sample exhibits high anti-static efficiency, which would be potentially useful in electronic packaging materials. (C) 2008 Elsevier Ltd. All rights reserved.
|Appears in Collections:||化學工程學系所|
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