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Thermal and morphological stability of polystyrene microcapsules containing phase‐change materials
Author(s) -
Sánchez Silva Luz,
Rodríguez Juan F.,
Carmona Manuel,
Romero Amaya,
Sánchez Paula
Publication year - 2010
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.33112
Subject(s) - thermogravimetric analysis , materials science , polystyrene , differential scanning calorimetry , paraffin wax , thermal stability , suspension polymerization , scanning electron microscope , composite material , phase change material , curing (chemistry) , coating , chemical engineering , polymerization , wax , polymer , phase change , physics , engineering , thermodynamics , engineering physics
Polystyrene microcapsules with paraffin wax as the active agent [phase‐change material (PCM)] were produced by a Shirasu porous glass emulsification technique and a subsequent suspension‐like polymerization process. The suitability of the obtained microcapsules for textile applications was studied. The thermal properties, surface morphology, and structural stability of the PCM microcapsules were investigated with differential scanning calorimetry, thermogravimetric analysis, and environmental scanning electron microscopy. The microcapsules could be used without any appreciable damage or irreversible changes in their integrity until 135°C. Furthermore, these microcapsules were heat‐resistant and could endure the curing conditions of textile coating up to 140°C for 30 min. In addition, the stability of the microcapsules under common laundering conditions was tested. It was confirmed that the microcapsules were durable enough and maintained their stability during stirring in hot water and alkaline solutions. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2011