脂肪酸/石蜡/石墨复合相变材料对不锈钢的腐蚀性研究  

Study on the corrosivities of fatty acids/paraffin/graphite composite phase change materials toward stainless steel

作　　者：闫全英 马广园 王威[2] Yan Quanying;Ma Guangyuan;Wang Wei(School of Environment and Energy Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044;Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190)

机构地区：[1]北京建筑大学环境与能源工程学院,北京100044 [2]中国科学院过程工程研究所,北京100190

出　　处：《化工新型材料》2022年第12期96-98,103,共4页New Chemical Materials

基　　金：北京学者计划项目资助(2015NO.022)。

摘　　要：以单一脂肪酸、脂肪酸/石蜡混合相变材料和脂肪酸/石蜡/石墨复合相变材料为腐蚀介质,研究了相变材料对不锈钢的腐蚀性能。研究结果显示,脂肪酸、石蜡类相变材料及添加石墨后的复合相变材料对不锈钢的腐蚀性均很小,其中硬脂酸系列的相变材料腐蚀性最小,可作为不锈钢制相变储热换热装置的理想储能介质。The corrosivities of fatty acids, fatty acid/paraffin and fatty acid/paraffin/graphite composite phase change materials(PCMs) toward stainless steels were investigated.The results showed that stainless steels only suffered slight corrosions in the mediums of fatty acids, paraffin PCMs and graphite composite PCMs.Among of them, the corrosivity of stearic acid PCMs toward stainless steel was the least, which was expected to be an ideal energy storage medium for regenerative phase change heat exchangers made of stainless steel.

关 键 词：脂肪酸 复合相变材料 腐蚀性 

分 类 号：TG172.7[金属学及工艺—金属表面处理]