膨胀石墨/高密度聚乙烯/石蜡导热增强型定形相变复合材料的制备及性能研究  

Preparation and Property Research of EG/HDPE/Paraffin Heat Conductive Enhanced Type Shapely Phase Change Composite Material

作　　者：王静[1,2] 张丽[1,2] 罗李娟 马权[1,2] 刘菁伟 杨文彬[1,2] 白进伟[1] 杨序平[1] WANG Jing ZHANG Li LUO Li-juan MA Quan LIU Jing-wei YANG Wen-bin BAI Jin-wei YANG Xu-ping(School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang Sichuan 621010, China State Key Laboratory Cultivation Base for Nonmetal Composite and Functional Materials Southwest University of Science and Technology, Mianyang Sichuan 621010,China)

机构地区：[1]西南科技大学材料科学与工程学院,四川绵阳621010 [2]西南科技大学四川省非金属复合与功能材料-省部共建国家重点实验室培育基地,四川绵阳621010

出　　处：《热处理技术与装备》2016年第5期1-4,共4页Heat Treatment Technology and Equipment

基　　金：国家自然科学基金委员会-中国工程物理研究院联合基金(11176025);四川省教育厅重大培育项目(14CZ0011)

摘　　要：以高密度聚乙烯(HDPE)作为支撑材料,石蜡作为相变材料,膨胀石墨(EG)作为导热增强填料,通过熔融共混法制备EG/HDPE/石蜡导热增强型定形相变复合材料(PCM)。结果表明:HDPE、石蜡和EG之间有良好的相容性,HDPE和EG对石蜡具有良好的包覆作用;随着EG的提高,PCM的热导率增加;定形相变复合材料具有较强的控温能力。EG/HDPE/Paraffin heat conductive enhanced mode shapely phase change composite material（ PCM） was prepared by melt blending method,in which high density polyethylene（ HDPE） was used as the supporting materials,paraffin was used as the phase change materials,and expanded graphite（ EG）was used as heat conductive reinforcing filler. The results show that there are good compatibility among HDPE,paraffin and EG. HDPE and EG on paraffin has a good cladding effect. The thermal conductivity of PCM increases with increasing EG content. The shapely phase change composite materials has stronger ability controling temperature.

关 键 词：相变材料 热导率 相变温度 制备 性能 

分 类 号：TB34[一般工业技术—材料科学与工程]