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The thermo-mechanical degradation of ethylene vinyl acetate used as a solar panel adhesive and encapsulant

Badiee, A.; Ashcroft, Ian; Wildman, Ricky D.

The thermo-mechanical degradation of ethylene vinyl acetate used as a solar panel adhesive and encapsulant Thumbnail


Authors

A. Badiee

IAN ASHCROFT IAN.ASHCROFT@NOTTINGHAM.AC.UK
Professor of Mechanics of Solids

RICKY WILDMAN RICKY.WILDMAN@NOTTINGHAM.AC.UK
Professor of Multiphase Flow and Mechanics



Abstract

© 2016 The Authors. Published by Elsevier Ltd. The thermal ageing of an ethylene-vinyl acetate (EVA) polymer used as an adhesive and encapsulant in a photovoltaic module has been investigated. The EVA is used to bond the silicon solar cells to the front glass and backing sheet and to protect the photovoltaic materials from the environment and mechanical damage. Using a range of experimental techniques, including Dynamic Mechanical Analysis, Differential Scanning Calorimetry and Thermo-gravimetric Analysis, it was possible to show a link between changes in mechanical properties with both the transient temperature and the degree of long-time thermal ageing. Importantly, it was possible to show that the ageing related property changes were likely due to long term structural changes rather than any modification of the chemistry of the material.

Journal Article Type Article
Acceptance Date Mar 3, 2016
Online Publication Date Mar 17, 2016
Publication Date Jul 1, 2016
Deposit Date Apr 26, 2016
Publicly Available Date Apr 26, 2016
Journal International Journal of Adhesion and Adhesives
Electronic ISSN 0143-7496
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 68
Pages 212-218
DOI https://doi.org/10.1016/j.ijadhadh.2016.03.008
Keywords Ageing; Dynamic mechanical analysis; Thermal analysis; Durability; Photovoltaic encapsulants
Public URL https://nottingham-repository.worktribe.com/output/791816
Publisher URL http://www.sciencedirect.com/science/article/pii/S0143749616300549

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