Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/70515
標題: Responses and thermal conductivity measurements of multi-wall carbon nanotube (MWNT)/epoxy composites
作者: Kuo, C.H.
Huang, H.M.
關鍵字: Thermal conductivity
Responding time
Time constant
Temperature
measurement
Lumped-heat capacity model
mechanical-properties
matrix composites
strength
model
期刊/報告no:: Journal of Thermal Analysis and Calorimetry, Volume 103, Issue 2, Page(s) 533-542.
摘要: In the present study, the MWNT/epoxy composites are prepared with three weight percentages (0.0, 0.3, and 0.5%) of multiwall carbon nanotube (MWNT). The temporal response of multi-wall carbon nanotube (MWNT)/epoxy composite with different wt% of multi-wall carbon nanotube (MWNT) is measured by experiment. Also, a cavity-type measuring system is designed to experimentally measure the surface temperatures and obtain the thermal conductivity of these composites at different heating rates. It is found that the responses of the 0.3 and 0.5% weight percentage of multi-wall carbon nanotube (MWNT)/epoxy composites are found to be about 25 and 47.8%, respectively, faster than that of the pure epoxy resin. Both the responding characteristics and the variation trends of the measured surface temperatures of these composites can be well predicted by the lumped-heat capacity model. Besides, the higher the weight percentage (wt%) of multi-wall carbon nanotube (MWNT) in the composite, the larger is the thermal conductivity. Relative to the pure epoxy, the thermal conductivities for the composites with 0.3 and 0.5% of multi-wall carbon nanotube (MWNT) increase by 15.9 and 44.9%, respectively. For the weight percentages studied, the thermal conductivity of these composites is found to increase mildly at low heating rates; however, it remains nearly constant at high heating rates.
URI: http://hdl.handle.net/11455/70515
ISSN: 1388-6150
文章連結: http://dx.doi.org/10.1007/s10973-010-1088-y
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