Autor: G. Kämpf, W. Papenroth
Rok vydání: 1983
Předmět:
Zdroj: Angewandte Makromolekulare Chemie. 114:19-22
ISSN: 1522-9505
0003-3146
DOI: 10.1002/apmc.1983.051140103
Popis: A report is given of recent studies into the influence of spectral energy distribution, irradiation intensity, moisture, oxygen pressure and specimen temperature on the results obtained during the accelerated weathering of unpigmented and pigmented polymers. In particular, a “radiation-related spectral energy absorption” is defined and its possibilities for providing information on the sequence of the degradation processes that take place during weathering is discussed; in this respect it is possible to differentiate between the degradation of the polymer matrix by UV-degradation, degradation by photocatalytic oxidation of the polymer when photoactive pigments are used and the protective action of high-grade inorganic pigments. Finally, the possibilities for improving the process and equipment used in accelerated weathering are discussed.
Databáze: OpenAIRE
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