| 导热填料对HDPE/石蜡定形相变材料性能的影响 |
| |
| 引用本文： | 杨序平,刘菁伟,杨文彬,范敬辉,张凯.导热填料对HDPE/石蜡定形相变材料性能的影响[J].四川建材学院学报,2014(2):10-13. |
| |
| 作者姓名： | 杨序平 刘菁伟 杨文彬 范敬辉 张凯 |
| |
| 作者单位： | [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 |
| |
| 基金项目： | 国家自然科学基金-中国工程物理研究院联合资助项目（11176025） |
| |
| 摘 要： | 采用熔融共混技术,在高密度聚乙烯（HDPE）/石蜡定形相变材料中添加普通石墨、氧化膨胀石墨、超声膨胀石墨以及膨胀石墨（EG）4种导热填料制备导热定形相变材料（PCM）。SEM图表明导热填料可以与HDPE、石蜡均匀混合。添加导热填料后定形相变材料的渗漏率有增大的趋势,但添加普通石墨和超声膨胀石墨时,渗漏率随导热填料含量的增加而增加,添加氧化膨胀石墨和EG时,PCM的渗漏率随导热填料含量的增加而降低。定形相变材料中添加导热填料时其热导率有显著提高。添加EG时,定形相变材料的热导率提高最多,提高率达144.7%。
|
| 关 键 词： | 定形相变材料 导热填料 渗漏率 热导率 |
Effect of Thermal Conductive Fillers on the Property of HDPE /Paraffin Shape-stabilized Phase-Change Materials |
| |
| Authors: | YANG Xu-ping LIU Jing-wei YANG Wen-bin FAN Jing-hui ZHANG Kai |
| |
| Affiliation: | 1. State Key Laboratory Cultivation Base for Nonmetal Composite and Functional Materials, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China ; 2. Engineering Researc＇h 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) |
| |
| Abstract: | Four kinds of thermal conductive fillers,such as graphite,oxide expanded graphite,ultrasonic expanded graphite and expanded graphite were added into HDPE /paraffin shape-stabilized phase-change materials by using melt blending method to fabricate heat-conductive phase-change materials.SEM images show that the heat-conductive fillers are mixed well with the HDPE /paraffin. When graphite and ultrasound expanded graphite were added,the leakage rate of phase-change materials was increased with the increase of the filler content. When oxide expanded graphite and expanded graphite are added,the leakage rate of phase-change materials was decreased with the increase of the filler content.The thermal conductivity of the PCM is improved significantly with the thermal conductive filler added.When expanded graphite are added,the thermal conductivity rate can reach up to 144. 7%. |
| |
| Keywords: | Shape-stabilized phase change materials Thermal conductive filler Leakage rate Thermal conductivity |
| 本文献已被 维普 等数据库收录！ |
|
