天津工业大学学报2018，Vol.37Issue(2)：55-61,7.DOI:10.3969/j.issn.1671-024x.2018.02.010
PEG/PAM复合定形相变材料的制备与热性能
Synthesis and thermal performance of PEG/PAM shape-stabilized composite phase change materials
摘要
Abstract
In order to design and prepare shape-stabilized composite phase change materials(ss-CPCM)with higher phase transition enthalpy,polyethylene glycol/polyacrylamide(PEG/PAM)ss-CPCM with semi-interpenetrating net-work structure were synthesized via chemical cross-linking method and its thermal conductivity was simulated by molecular dynamics.The thermal property,thermal stability,shape effect and thermal reliability were character-ized by DSC, TG, leakage measurement and thermal conductivity measurement.The results indicate that with the increase of PAM content,the enthalpy and leakage rate decrease,and thermal stability and thermal conduc-tivity of PEG/PAM composites increase.Among them,the ss-CPCM with 70% PEG has high enthalpy(107 J/g), good thermal stability and excellent shape effect.The simulation results show that the thermal conductivity agree well with the experimental values, and the error values are all about 5%, which can predict and theoretically guide for thermal conductivity of more complex ss-CPCM.关键词
PEG/PAM/定形相变材料/半互穿网络/分子动力学模拟/导热系数Key words
PEG/PAM/shape-stabilized phase change materials/semi-interpenetrating polymer network/molecular dy-namics simulatio/thermal conductivity分类
通用工业技术引用本文复制引用
付维贵,索海涛,林贵德,吴春辉,梁丽,孙宝山..PEG/PAM复合定形相变材料的制备与热性能[J].天津工业大学学报,2018,37(2):55-61,7.基金项目
天津市应用基础与前沿技术研究计划(青年基金)项目(14JCQNJC03200) （青年基金）
天津市大学生创新项目(201510058064) （201510058064）
