• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International journal of green energy >THE IMPROVEMENT OF THERMAL STABILITY AND CONDUCTIVITY VIA INCORPORATION OF CARBON NANOFIBERS INTO ELECTROSPUN ULTRAFINE COMPOSITE FIBERS OF LAURIC ACID/POLYAMIDE 6 PHASE CHANGE MATERIALS FOR THERMAL ENERGY STORAGE
【24h】

THE IMPROVEMENT OF THERMAL STABILITY AND CONDUCTIVITY VIA INCORPORATION OF CARBON NANOFIBERS INTO ELECTROSPUN ULTRAFINE COMPOSITE FIBERS OF LAURIC ACID/POLYAMIDE 6 PHASE CHANGE MATERIALS FOR THERMAL ENERGY STORAGE

机译：通过将碳纳米纤维掺入月桂酸/聚酰胺6型相变材料的电纺超细纤维中来改善碳的热稳定性和导电性

获取原文
获取原文并翻译 | 示例
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The ultrafine composite fibers consisting of lauric acid (LA) and polyamide 6 (PA6) were prepared via the technique of electrospinning as form-stable phase change materials. The influences of carbon nanoflbers (CNFs) on structural morphology, as well as the properties of thermal energy storage, thermal stability, and thermal conductivity, of electrospun LA/PA6 composite fibers were studied. FE-SEM images revealed that the morphologies of electrospun LA/PA6/CNFs composite fibers changed from cylindrical shape with smooth surface (neat PA6 nanofibers) to non-uniform and coarse structure, and the CNFs were uniformly/randomly dispersed in the composite fibers. DSC measurements indicated that the heat enthalpies of the composite fibers were lower that that of neat LA powder, and the amount of CNFs in the fibers had slightly influence on the crystallization of LA (i.e., heat enthalpies of the composite fibers); while it had no appreciable effect on the phase change temperatures. TGA results suggested that the incorporation of the CNFs increased the maximum weight loss temperature and charred residue at 700℃ of the composite fibers, indicating the improved thermal stability for composite fibers. The increased thermal conductivity was also confirmed by comparison of the melting/freezing times of neat LA powder with those of composite fibers with and/or without CNFs. It was envisioned that the electrospun LA/PA6 ultrafine composite fibers would be utilized for latent heat thermal energy-storage applications because of its desired structural morphologies and thermal properties.
机译：采用电纺技术制备了由月桂酸（LA）和聚酰胺6（PA6）组成的超细复合纤维，作为稳定的相变材料。研究了碳纳米纤维（CNFs）对电纺LA / PA6复合纤维的结构形态以及热能储存，热稳定性和导热性的影响。 FE-SEM图像显示，电纺LA / PA6 / CNFs复合纤维的形态从具有光滑表面的圆柱形状（纯PA6纳米纤维）变为不均匀和粗糙的结构，并且CNFs均匀/随机地分散在复合纤维中。 DSC测量表明，复合纤维的热焓低于纯LA粉末的热焓，并且纤维中CNF的量对LA的结晶有轻微的影响（即，复合纤维的热焓）。而对相变温度没有明显影响。 TGA结果表明，CNF的加入增加了复合纤维的最大失重温度和700℃下的焦化残渣，表明复合纤维的热稳定性得到改善。通过比较纯净的LA粉末与具有和/或不具有CNF的复合纤维的熔化/凝固时间，也可以确认增加的热导率。可以预见的是，电纺LA / PA6超细复合纤维由于其所需的结构形态和热性能而可用于潜热热能存储应用。

著录项

  • 来源
    《International journal of green energy》 |2014年第10期|861-875|共15页
  • 作者

    Yibing Cai; Xue Zong; Jingjing Zhang; Jinmei Du; Zaidong Dong; Qufu Wei; Yong Zhao; Qi Chen; Hao Fong;

  • 作者单位

    Department of Chemistry, South Dakota School of Mines and Technology, Rapid City, 57701, South Dakota, United States,Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi, 214122, Jiangsu, China;

    Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China;

    Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China;

    Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China;

    Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China;

    Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China;

    Department of Chemistry, South Dakota School of Mines and Technology, Rapid City, 57701, South Dakota, United States;

    Department of Chemistry, South Dakota School of Mines and Technology, Rapid City, 57701, South Dakota, United States;

    Department of Chemistry, South Dakota School of Mines and Technology, Rapid City, 57701, South Dakota, United States;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Electrospinning; Ultrafine composite phase change fibers; Morphology; Thermal energy storage; Thermal stability; Thermal conductivity;

    机译：电纺;超细复合相变纤维;形态学;热能储存;热稳定性;导热系数;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号