<abstract xmlns="http://www.w3.org/1999/xhtml"><p> The mechanical behavior and the thermal stability of an encapsulant based on ethylene-vinyl acetate (EVA) were studied. The EVA properties were verified at temperatures ranging from −70 °C to 500 °C. Thermogravimetry, differential scanning calorimetry and dynamic mechanical analysis were used in this study. It has been shown that the encapsulant has a good weight stability; however, the encapsulant passes through both a glass transition and a melting phase in the range of operating temperatures. The kinetic parameters of crosslinking were also analyzed. It is possible to achieve 65% crosslinking at a temperature of 150 °C and a time of 5 minutes. The activation energy of crosslinking is 95.6 kJ/mol.</p></abstract>

The mechanical behavior and the thermal stability of an encapsulant based on ethylene-vinyl acetate (EVA) were studied. The EVA properties were verified at temperatures ranging from −70 °C to 500 °C. Thermogravimetry, differential scanning calorimetry and dynamic mechanical analysis were used in this study. It has been shown that the encapsulant has a good weight stability; however, the encapsulant passes through both a glass transition and a melting phase in the range of operating temperatures. The kinetic parameters of crosslinking were also analyzed. It is possible to achieve 65% crosslinking at a temperature of 150 °C and a time of 5 minutes. The activation energy of crosslinking is 95.6 kJ/mol.

Mechanical Behavior and Thermal Stability of EVA Encapsulant Material Used in Photovoltaic Modules

University of West Bohemia, Faculty of Electrical Engineering, Plzeň, Czech Republic,Regional Innovation Centre for Electrical Engineering

University of West Bohemia, Faculty of Electrical Engineering, Plzeň, Czech Republic, Department of Technologies and Measurement

Journal of Electrical Engineering

The mechanical behavior and the thermal stability of an encapsulant based on ethylene-vinyl acetate (EVA) were studied. The EVA properties were verified at...

Mechanical Behavior and Thermal Stability of EVA Encapsulant Material Used in Photovoltaic Modules

Published Online: Nov 23, 2013

Page range: 361 - 365

DOI: https://doi.org/10.2478/jee-2013-0054

Keywords
renewable energy resources, photovoltaic, EVA, encapsulant, glass transition, thermal analysis

This content is open access.

Mechanical Behavior and Thermal Stability of EVA Encapsulant Material Used in Photovoltaic Modules

Published Online: Nov 23, 2013

Page range: 361 - 365

DOI: https://doi.org/10.2478/jee-2013-0054

Keywordsrenewable energy resources, photovoltaic, EVA, encapsulant, glass transition, thermal analysis

This content is open access.

Keywords
renewable energy resources, photovoltaic, EVA, encapsulant, glass transition, thermal analysis