期刊
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
卷 45, 期 2, 页码 3257-3268出版社
WILEY
DOI: 10.1002/er.6022
关键词
gamma radiation shielding; leakage prevention; Pickering emulsion; superhydrophobicity; thermal energy storage
资金
- State Key Laboratory of Environmental-friendly Energy Materials [18fksy0220, 17kffk15]
- Scientific Research Fund of Sichuan Provincial Education Department [17TD0043]
- National Natural Science Foundation of China [51803199]
- NSAF of China [U1730114]
New multifunctional phase change microcapsules with paraffin as core and GO and lead tungstate as double-shell showed high phase change reliability, thermal stability, and improved anti-seepage performance by 67.27% compared to microcapsules without GO addition.
New multifunctional phase change microcapsules with paraffin (Pn) as core and GO and lead tungstate (PbWO4) as double-shell were designed by modified GO Pickering emulsion, and the effect of GO content on Pn@GO@PbWO(4)microcapsules was studied. The morphology, chemical composition, and structure of Pn@GO@PbWO(4)microcapsules were characterized, and their performance was studied in depth. The Pn@GO@PbWO(4)microcapsules had a dense shell and a regular spherical structure. Compared with microcapsules without GO addition, the resultant Pn@GO@PbWO(4)microcapsules could demonstrate high phase change reliability and thermal stability. Most of all, the anti-seepage performance had been greatly improved by 67.27%. The results of contact angle (CA) measurement and gamma-ray shielding test showed that the GO and PbWO(4)double-shell multifunctional microcapsules with superhydrophobic property and good gamma-ray shielding property and high anti-seepage performance had great attraction in expanding the application field of phase change materials.
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