文章摘要
Cu/碳纳米纤维负载脂肪酸定形相变材料的制备与性能
Preparation and Property of Form-Stable Phase Change Materials Consisting of Copper/Carbon Nanofibrous MatsAbsorbed with Fatty Acid
  
DOI:10.16865/j.cnki.1000-7555.2018.05.026
中文关键词: 静电纺丝  原位还原  Cu/碳纳米纤维  脂肪酸  定形相变材料  导热性能
英文关键词: electrospinning  in-situ reduction  copper/carbon nanofibrous mats  fatty acids  form-stable phase change materials  thermal conductivity
基金项目:国家重点研发计划资助项目(2017YFB0309100);中央高校基本科研业务费专项资金资助项目(No.JUSRP51621A);江苏高校“青蓝工程”优秀青年骨干教师培养对象资助项目(苏教师[2016]15号);江苏省研究生科研创新计划项目(KYCX17-1472);江苏省双创计划项目(苏人才办[2015]26号);江南大学国家大学生创新训练计划项目(201610295043)
作者单位
宋肖飞1, 黄 聪1, 谷 滢1, 蔡以兵1,2, 魏取福1, 刘 伟2 1. 江南大学生态纺织教育部重点实验室江苏 无锡 214122 2. 江苏箭鹿毛纺股份有限公司江苏 宿迁 223800 
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中文摘要:
      结合静电纺丝、物理吸附、预氧化炭化和原位还原的技术与原理,制备了3种不同铜纳米粒子含量的Cu/碳纳米纤维膜(Cu/CNFs1~3),从此作为定形相变材料(FSPCM)的支撑基体;根据最低共熔点理论和Schrader方程计算出月桂酸-肉豆蔻酸-硬脂酸(LA-MA-SA)三元脂肪酸的质量比例,用作制备FSPCM的相变物质。通过物理吸附法制备了Cu/CNFs负载LA-MA-SA的FSPCM1~3。探讨了不同铜纳米粒子含量的CNFs对FSPCM形貌与导热性能的影响。结果表明,FSPCM1~3的熔融时间分别缩短了23.0%、51.8%和38.2%,结晶时间分别缩短了47.8%、64.0%和62.6%。制备的FSPCM1~3的熔融相变温度和熔融热焓在32~36 ℃和88~122 kJ/kg之间,结晶相变温度和结晶热焓分别在24~26 ℃和89~120.9 kJ/kg之间。
英文摘要:
      Combined the technique and principle of electrospinning, physical adsorbing, preoxidation/carbonization and in-situ reduction, three kinds of copper/carbon nanofibrous mats (Cu/CNFs1~3) consisting of different content of nanoparticles were fabricated. The prepared Cu/CNFs was used as supporting material of form-stable phase change materials (FSPCM); based on the lowest eutectic point theory and Schrader equation, the mass ratio of lauric acid (LA), myristic acid (MA) and stearic acid (SA) was calculated. The LA-MA-SA ternary fatty acid eutectic mixture was fabricated as model PCM for preparation of FSPCM. Then, electrospun Cu/CNFs mats absorbed with LA-MA-SA ternary eutectic mixture were studied tofabricate FSPCM1~3. The effect of different content of Cu nanoparticleson morphology and thermal conductivity of FSPCM was studied. The melting time of the FSPCM1~3 was respectively reduced about 23.0%, 51.8% and 38.2%, freezing time was respectively reduced about 47.8%, 64.0% and 62.6%. The melting temperatures and enthalpies of FSPCM1~3 are in the range of 32~36 ℃ and 88~122 kJ/kg, respectively. The crystallization temperatures and enthalpies of FSPCM1~3 are in the range of 24~26 ℃ and 89~120.9 kJ/kg, respectively.
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