Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6535644 | Solar Energy Materials and Solar Cells | 2014 | 8 Pages |
Abstract
The aim of this work is to characterise fluoropolymer films as transparent layers in a pneumatic pre-stressed sun concentrator. Fluoropolymers have been chosen due to their excellent optical and mechanical properties and their extraordinary stability against ultraviolet radiation. A total of five different fluoropolymer films have been selected and their thermal, mechanical and thermo-mechanical properties at application relevant temperatures were characterised. Even though no material complies with the requirements, an ethylene-tetrafluorethylene-copolymer (ETFE) is suggested, with the recommendation to adapt and adjust the film thickness and the production process to influence the morphology and subsequently the thermo-mechanical behaviour of the material.
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Physical Sciences and Engineering
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Authors
B. Hirschmann, G. Oreski, G. Pinter,