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Fabrication and performance of microencapsulated phase change materials with hybrid shell by in situ polymerization in Pickering emulsion
Author(s) -
Yin Dezhong,
Liu Hao,
Ma Li,
Zhang Qiuyu
Publication year - 2015
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.3495
Subject(s) - materials science , melamine , pickering emulsion , emulsion , in situ polymerization , melamine resin , emulsion polymerization , chemical engineering , polymer , polymerization , shell (structure) , thermal stability , composite material , nanotechnology , nanoparticle , coating , engineering
Microencapsulated phase change materials (MePCMs) using melamine–formaldehyde resin/SiO 2 as shell were investigated in this paper. Organically modified SiO 2 particles were employed to stabilize Pickering emulsion, and in situ polymerization of melamine and formaldehyde was carried out to form hybrid shell. The performances of resultant MePCMs with hybrid shell were investigated comparatively with the MePCMs with polymer shell. SiO 2 particles raise the microencapsulation efficiency by improving the stability of emulsion and providing a precipitation site for melamine–formaldehyde resin. Also, the mechanical strength, thermal reliability, and anti‐osmosis performance of MePCMs were improved significantly by SiO 2 particles in the shell. Our study shows that Pickering emulsion is a simple and robust template for MePCMs with polymer‐inorganic hybrid shell. Copyright © 2015 John Wiley & Sons, Ltd.