一种新型高储能密度定形相变材料  

A Novel Shape-stabilized Phase Change Materials with High Heat Storage Density

作　　者：张晓行 常伟 王会 黄占凯 ZHANG Xiaoxing, CHANG Wei, WANG Hui, HUANG Zhankai(CNOOC Tianjin Chemical Research ＆ Design Institute Co., Ltd., Tianjin 30013)

机构地区：[1]中海油天津化工研究设计院有限公司,天津300131

出　　处：《材料导报》2018年第A01期253-256,共4页Materials Reports

摘　　要：采用山梨醇和对甲基苯甲醛合成了1,3∶2,4-二(4-甲基苯甲醛)山梨醇(MDBS),并将其作为石蜡类定形复合相变材料(PCM)的凝胶因子,然后以利用凝胶因子形成的三维网络结构作为石蜡的支撑材料,制备了一系列高储能密度的定形复合相变材料。对其进行凝胶解缔温度测试和泄漏量测试发现,添加一定量MDBS制备定形复合相变材料,可使定形复合相变材料中主储能材料——石蜡的含量大幅提高到90%以上,同时也为复合定形相变材料的开发提供了一条新的研究思路。In this paper,by introducing 1,3∶2,4-di-（4-methyl）benzylidene sorbitol（MDBS）,which was prepared from sorbitol and p-methylbenzaldehyde,as gelators into paraffin,three dimensional netted structural paraffin-based shape-stabilized composite phase change materials（PCMs）were obtained.It was found that the resulting PCMs showed lower leakage with high weight percentage of paraffin from the gel-to-sol transition temperature and leakage tests.This may open a way to enhance the heat storage density of paraffin-based PCMs.

关 键 词：凝胶因子 储能 相变材料 石蜡 

分 类 号：TH34[机械工程—机械制造及自动化]