Photo-ageing of Poly(Butylene Terephthalate) and Poly(Butylene Terephthalate)-Fibre Glass Systems
Source abstract
Abstract
The photolysis and photo-oxidation mechanisms of poly(butylene terephthalate) (PBT) and poly(butylene terephthalate)-fibre glass (PBT-FG) irradiated under polychromatic light (λ ≥ 2300 nm) were studied. Derivatisation reactions coupled to FTIR analysis of the exposed samples permitted the identification of the various photo-products and the proposal of mechanisms. It was found that the same photo-products were formed in PBT and PBT-FG. Micro-FTIR analysis of the irradiated samples showed that the photochemical reactions were limited to a depth of 50 urn from the exposed surface, both in PBT and PBT-FG.
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Research context
OpenAlex topics: Polymer crystallization and properties · Surface Modification and Superhydrophobicity · Fiber-reinforced polymer composites
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Affiliations
Laboratoire de Photochimie Moléculaire et Macromoléculaire URA CNRS 433, Université Blaise Pascal, F-63177 Aubiere Cedex, France
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