文献类型：期刊文献

英文题名：Experimental study on thermal property of alkali treated CNT-based composite as phase change materials

作者：Wang, Jifen[1,2]; Xie, Huaqing[1]; Xin, Zhong[2]; Li, Yang[1]; Chen, Lifen[1]; Xu, Na[2]

机构：[1] School of Urban Development and Environmental Engineering, Shanghai Second Polytechnic University, Shanghai 201209, China; [2] State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China

年份：2010

卷号：9

期号：PART A

起止页码：1

外文期刊名：ASME International Mechanical Engineering Congress and Exposition, Proceedings

收录：EI(收录号：20102713059071)

语种：英文

外文关键词：Ball milling - Heat storage - Heat transfer - Latent heat - Multiwalled carbon nanotubes (MWCN) - Nanocomposites - Phase change materials - Potassium hydroxide - Specific heat - Thermal conductivity - Yarn

摘要：The nanocomposites were prepared by adding the multiwalled carbon nanotubes (CNTs) to the melting palmitic acid to improve the thermal transfer property. Mechanochemical reaction was used to treat CNTs for dispersing into organic matrix easily. The treated CNTs were introduced hydoxide radical functional groups on the surfaces during ball milling with the potassium hydroxide. And they were successfully dispersed into the palrnitic acid matrix without any surfactant. The resulted nanocomposites were stable and homogeneous. The thermal conductivities and latent heat capacities of these nanocomposites were measured using a transient hot wire apparatus and a differential scanning calorimetric instrument. Nanotube composites, containing a small amount of CNTs, have substantially higher thermal conductivities than the base palmitic acid matrix, with the enhancement increasing with the mass fraction of CNTs in both liquid state and solid state. While the latent heat capacities turned out a reverse with the CNT loadings. Copyright ? 2010 by ASME.