化工进展Issue(10)：3688-3692,3718,6.DOI:10.16085/j.issn.1000-6613.2015.10.026
多壁碳纳米管/聚乙烯醇缩丁醛复合相变纤维的制备与性能
Preparation and properties of MWNT/polyvinyl butyral composite phase change fibers
摘要
Abstract
Core-sheath multi-walled carbon nanotube/polyvinyl butyral(MWNT/PVB) composite phase change fibers are successfully prepared by microfluidic technology,which are composed of paraffin (RT27) as core and PVB blended with MWNT as sheath. The effect of MWNT content on the morphology,mechanical properties,thermal properties,and conductive properties of MWNT/PVB composite phase change fibers is systematically investigated. The results show that the mechanical properties and heat conductive properties of MWNT/PVB fibers have improved significantly by adding the MWNT in PVB fiber matrix. The tensile strength of MWNT/PVB composite fibers firstly increases and then decreases with the increase of MWNT content. When MWNT content is 0.5%,the tensile strength of MWNT/PVB composite fibers reaches the maximum and increases by 28.27% than that of the phase change fibers without MWNT. At 42℃,the inner temperature of model hat twined by MWNT/PVB fibers with 4% of MWNT to PVB raises faster than that of the model hat with PVB phase change fibers. The duration time of the former reduces by 25% compared with the latter when the inner temperatures of two model hats reach the melting point of RT27 (27℃) from the same initial temperature (17℃). The results provide a valuable guidance for the preparation of phase change fibers with satisfactory heat conduction properties,mechanical properties as well as stable and fast thermal regulation properties.关键词
微流体学/相变/焓/纤维/导热性能Key words
microfluidics/phase change/enthalpy/fibers/conductive properties分类
化学化工引用本文复制引用
温国清,谢锐,巨晓洁,汪伟,刘壮,褚良银..多壁碳纳米管/聚乙烯醇缩丁醛复合相变纤维的制备与性能[J].化工进展,2015,(10):3688-3692,3718,6.基金项目
国家自然科学基金重点项目（21136006）及高分子材料工程国家重点实验室自主研究课题--团队项目（sklpme2014-1-01）。 （）
