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材料工程  2015, Vol. 43 Issue (4): 42-46    DOI: 10.11868/j.issn.1001-4381.2015.04.008
  材料与工艺 本期目录 | 过刊浏览 | 高级检索 |
HDPE/EG/石蜡导热定形相变材料的制备及性能
刘菁伟1,2, 杨文彬1,2, 谢长琼1,2, 张凯3, 范敬辉3
1. 西南科技大学 四川省非金属复合与功能材料国家重点实验室 培育基地, 四川 绵阳 621010;
2. 西南科技大学 教育部生物质材料工程研究中心, 四川 绵阳 621010;
3. 中国工程 物理研究院 总体工程研究所, 四川 绵阳 621900
Preparation and Properties of HDPE/EG/Paraffin Thermal Conducting Shape-stabilized Phase Change Material
LIU Jing-wei1,2, YANG Wen-bin1,2, XIE Chang-qiong1,2, ZHANG Kai3, FAN Jing-hui3
1. State Key Laboratory Cultivation Base for Nonmetal Composite and Functional Materials, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China;
2. Engineering Research Center of Biomass Materials(Ministry of Education), Southwest University of Science and Technology, Mianyang 621010, Sichuan, China;
3. Institute of System Engineering, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China
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摘要 采用熔融共混法制备高密度聚乙烯(HDPE)/膨胀石墨(EG)/石蜡导热定形相变材料(PCM),并对其渗漏率、微观形貌、导热性能和相变潜热进行研究。结果表明:导热定形相变材料中,HDPE,EG和石蜡三种组分具有较好的相容性;PCM中添加EG时渗漏率有所提高,但渗漏率随EG含量的增加而降低;EG含量为15%(质量分数)时,PCM渗漏率低于0.6%;PCM热导率随EG含量的增加而增加,EG含量为15%时,热导率达到1.265W/(m·K);PCM的相变潜热随EG含量的增加变化不大。
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刘菁伟
杨文彬
谢长琼
张凯
范敬辉
关键词 相变材料渗漏率热导率相变焓    
Abstract:The high density polyethylene(HDPE)/expanded graphite(EG)/paraffin thermal conducting shape-stabilized phase change materials(PCM) was prepared by melt blending method.The leakage rate, microstructure, thermal conductivity and latent heat of the composites were studied. The results show that the HDPE, EG and paraffin could be uniformly mixed. The leakage rate of PCM increases when EG is added, but decreases with the increasing of EG content. When the mass fraction of EG is 15%, the leakage rate of PCM is less than 0.6%. The thermal conductivity of PCM increases with the increasing of EG content. The value of thermal conductivity is 1.265W/(m·K) when the mass fraction of EG is 15%. The latent heat of PCM is not changed with the increasing of the EG content.
Key wordsphase change material    leakage rate    thermal conductivity    phase change enthalpy
收稿日期: 2014-01-03     
1:  TB332  
基金资助:国家自然科学基金委员会-中国工程物理研究院联合基金资助项目(11176025);四川省教育厅重大培育项目资助(14CZ0011);四川省科技创新苗子工程重大项目资助(2014-14);西南科技大学研究生创新基金资助项目(14ycx021)
通讯作者: 杨文彬(1971―),男,教授,从事高分子复合材料研究工作,联系地址:四川省绵阳市涪城区西南科技大学材料科学与工程学院(621010),yangwenbin@swust.edu.cn     E-mail: yangwenbin@swust.edu.cn
引用本文:   
刘菁伟, 杨文彬, 谢长琼, 张凯, 范敬辉. HDPE/EG/石蜡导热定形相变材料的制备及性能[J]. 材料工程, 2015, 43(4): 42-46.
LIU Jing-wei, YANG Wen-bin, XIE Chang-qiong, ZHANG Kai, FAN Jing-hui. Preparation and Properties of HDPE/EG/Paraffin Thermal Conducting Shape-stabilized Phase Change Material. Journal of Materials Engineering, 2015, 43(4): 42-46.
链接本文:  
http://jme.biam.ac.cn/jme/CN/10.11868/j.issn.1001-4381.2015.04.008      或      http://jme.biam.ac.cn/jme/CN/Y2015/V43/I4/42
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