Investigations on preparations and thermal properties of microencapsulated phase change materials

2019 5th International Conference on Energy Materials and Environment Engineering

能源学;生态环境科学

Ma, Yanhong^1 ; Li, Yue^1^2 ; Xie, Qifei^1 ; Min, Xianhao^1^3 ; Wang, Xinzhong^1

School of Electronic Communication Technology, Shenzhen Institute of Information Technology, Longgang District Shenzhen, Guangdong

518172, China^1

School of Ecology and Environment, Inner Mongolia University, Hohhot, Inner Mongolia Autonomous Region

010021, China^2

School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan

430074, China^3

关键词: Methyl methacrylates;    Microencapsulated phase change material;    Polymerization method;    Polymerization systems;    Shell materials;    Spherical morphologies;    Trimethylolpropane triacrylate;    Trimethylolpropane trimethacrylate;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/295/3/032093/pdf
DOI  :  10.1088/1755-1315/295/3/032093

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

A series of microencapsulated phase change materials (micro-PCMs) were synthesized using suspension-like polymerization method. The micro-PCMs contained butyl stearate (BS) and octadecane (OC) as binary core materials. Trimethylolpropane triacrylate (TMPTA) and Trimethylolpropane trimethacrylate (TMPTMA) were introduced in polymerization system to respectively react with methyl methacrylate (MMA) or divinylbenzene (DVB) to form shell materials. SEM images showed that these micro-PCMs had compact surfaces and relatively spherical morphology, the diameter ranged from 5 to 40 μm. DSC results indicated that the microencapsulation ratio could be reached as high as 82 wt.%.