摘要
通过原位聚合法,制备以脲醛树脂为囊壁,十八烷为囊芯的相变储能微胶囊,并通过红外光谱、扫描电子显微镜、粒径分析仪和差示扫描量热仪分别表征了其组成、结构形貌、粒径大小和热能存储性能。结果表明:脲醛树脂能够成功包覆十八烷,所制备的微胶囊具有良好的外观形貌和均一的粒径分布,平均粒径在3.4μm左右;且所制备微胶囊熔融热焓(ΔH_m)和结晶热焓(ΔH_c)分别高达89.82kJ/kg和91.54kJ/kg,具有优异的相变储热能力。
Phase change energy storage microcapsules were prepared successfully by in-situ polymerization that used urea formaldehyde as shell material and n-octadecane as core material.The component,structural morphology,particle size distribution and thermal energy storage property of microcapsules were characterized by FT-IR,SEM,particle size analyzer and DSC,respectively.The results indicated that the n-octadecane was encapsulated successfully by urea formaldehyde resin,the prepared microcapsules had good surface morphology and homogeneous particle diameter（the average particle diameter was -3.4μm）,and the heat enthalpies of melting/crystallization（ΔHm and ΔHc）of microcapsules were respectively 89.82 kJ/kg and 91.54 kJ/kg,which demonstrated good thermal energy storage ability.
出处
《化工新型材料》
CAS
CSCD
北大核心
2017年第12期57-59,共3页
New Chemical Materials
基金
江苏高校"青蓝工程"优秀青年骨干教师培养对象资助项目(苏教师[2016]15号)
江苏省双创计划项目(苏人才办[2015]26号)
江苏省研究生科研创新计划项目(KYCX17-1438)
中央高校基本科研业务费专项资金资助项目(JUSRP51621A)
关键词
脲醛树脂
十八烷
微胶囊
定形相变材料
热能存储
urea formaldehyde resin, n-octadecane, microcapsule, form-stable phase change material, thermal energy storage
