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Thermochromic and temperature regulation properties of phase change materials derived from polymer composites loaded with VO2 particles by Onruthai Srirodpai; Jatuphorn Wootthikanokkhan; Saiwan Nawalertpanya is a Materials Science article available to read on EtoBox.

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This research work concerns the development of phase change materials based on poly(ethylene terephthalate) (PET) mixed with vanadium dioxide particles (VO 2 ). Monoclinic VO 2 particles were synthesized via a hydrothermal process followed by modification of the particle surface with a silane coupling agent, namely 3-(aminopropyl) triethoxysilane (APTES). After that, the metal oxide particles were mixed with PET flakes, derived from used PET bottles, in an internal mixer. In this study, the effects of surface modification and concentrations of VO 2 particles on thermomechanical and optical properties of the composites were investigated. From the DSC results, it was found that the percentage crystallinity of PET increased after loading with VO 2 . This indicates that VO 2 can act as a nucleating agent inducing the crystallization of the PET chains. From the scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDX) images, better dispersion of VO 2 particles in the PET matrix was noticed when the surface-modified VO 2 particles were used as a replacement for the normal VO 2 particles. This contributed to the greater percentage of visible light transmittance thr

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Author

Onruthai Srirodpai; Jatuphorn Wootthikanokkhan; Saiwan Nawalertpanya

Publisher

Wiley

Published

2023

Language

EN

Field

Materials Science (Physical Sciences)