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The surface characterization of photodegraded poly(ethylene terephthalate) was investigated. Films obtained by bi-axial extrusion were exposed in a laboratory weathering chamber for periods of up to ~1100 h of irradiation. Samples prepared with and without an ultraviolet (UV) absorber were tested by infrared, UV-visible and fluorescence spectroscopy. The results indicated that the unstabilized films...
The weathering behaviour of poly(ethylene terephthalate) was investigated. Samples produced by bi-axial extrusion were exposed in the laboratory for periods of up to ~1100 h. Films produced with different types of stabilizers (a ultraviolet absorber, carbon black and a mixture of TiO 2 and BaSO 4 ) were tested for mechanical properties and by UV-visible spectroscopy, titration, size...
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