Thermoplastic Elastomer based Phase Change Materials with Enhanced Mechanical Property, Thermal Conductivity and Photo-thermal Performance

Fuxian Wang; Xuelin Zou; Yanfeng Chen; Jian Liu

doi:10.20944/preprints201907.0160.v1

Preprint Article Version 1 This version is not peer-reviewed

Thermoplastic Elastomer based Phase Change Materials with Enhanced Mechanical Property, Thermal Conductivity and Photo-thermal Performance

Fuxian Wang ^* ,

Xuelin Zou ,

Yanfeng Chen ,

Jian Liu ^*

Version 1 : Received: 8 July 2019 / Approved: 11 July 2019 / Online: 11 July 2019 (11:54:58 CEST)

How to cite: Wang, F.; Zou, X.; Chen, Y.; Liu, J. Thermoplastic Elastomer based Phase Change Materials with Enhanced Mechanical Property, Thermal Conductivity and Photo-thermal Performance. Preprints 2019, 2019070160 (doi: 10.20944/preprints201907.0160.v1). Wang, F.; Zou, X.; Chen, Y.; Liu, J. Thermoplastic Elastomer based Phase Change Materials with Enhanced Mechanical Property, Thermal Conductivity and Photo-thermal Performance. Preprints 2019, 2019070160 (doi: 10.20944/preprints201907.0160.v1).

Abstract

Traditional phase change composites usually suffer poor mechanical property and easy collapsing in the phase changing process. Herein, a highly flexible phase change composite is fabricated using thermoplastic elastomer as the basic gel and the expanded graphite/paraffin as the filler. This new phase change composite shows a tensile strength of 2.1 MPa and a breaking elongation of 220%. It has a melting enthalpy of 145.4 J•g^-1 and a thermal conductivity of 2.2 W•m^-1•K^-1 with 70% of expanded graphite/paraffin. The thermoplastic elastomer based phase change composite exhibits great reversible property after 200 heating/cooling cycles. This flexible phase change composite demonstrates good photo-thermal energy charging/discharging property and shows great potential to be applied in the solar thermal energy systems.

Subject Areas

solar thermal systems; phase change materials; thermoplastic elastomer; mechanical property; photo-thermal performance

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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