碳纤维对甘二烷相变材料热性能的影响(英文)

被引:6
作者
李敏 [1 ,2 ]
吴智深 [2 ]
陈振乾 [2 ]
彭昌海 [2 ]
机构
[1] 东南大学江苏省土木工程材料重点实验室
[2] 东南大学低碳型建筑环境设备与系统节能教育部工程研究中心
关键词
相变材料; 碳纤维; 导热性; 甘二烷;
D O I
暂无
中图分类号
TB34 [功能材料];
学科分类号
080906 [电磁信息功能材料与结构];
摘要
对采用热的良导体——碳纤维改善相变材料的热传导速率开展了研究.通过碳纤维与甘二烷的物理混合制备了相变复合材料.采用示差扫描分析法、热重分析法和差示热分析法测试了此相变复合材料的热性能.研究了碳纤维的掺量与长度对甘二烷热传导性能的影响.研究结果表明,碳纤维能有效地改善甘二烷的热传导速率,碳纤维的掺量和长度是2个主要的影响因素.随着碳纤维掺量的增加,甘二烷的储热、放热速率增加.掺入碳纤维后,甘二烷的熔点从40.2℃增加到50.8℃.当掺入6%的碳纤维后,升温所需时间从720s降至660s;当掺入10%的碳纤维后,升温所需时间从720s降至600s.
引用
收藏
页码:346 / 350
页数:5
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