Thermal behavior and aging of polypropylene

Several samples of polypropylene were studied by thermal analysis. The photo-oxidation and the aging of polypropylene films showed a mass loss more than 7% in heating from 20 to 220 deg C (5 deg C min exp -1 ), cooling to 20 deg C and reheating to 220 deg C. The authors observed also a decrease of t...

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Bibliographic Details
Published inJournal of thermal analysis Vol. 52; no. 2; pp. 327 - 340
Main Authors Kaloustian, J, Antonetti, P, Berrada, A, Claire, Y, Perichaud, A
Format Journal Article
LanguageFrench
Published 01.01.1998
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Summary:Several samples of polypropylene were studied by thermal analysis. The photo-oxidation and the aging of polypropylene films showed a mass loss more than 7% in heating from 20 to 220 deg C (5 deg C min exp -1 ), cooling to 20 deg C and reheating to 220 deg C. The authors observed also a decrease of the melting and crystallization temperatures. The non aged samples or these ones with preservatives are thermo-oxidised and presented an exothermic peak at about 200 deg C in DTA heating. The DTA-TG simultaneous apparatus is very useful in the study of polypropylene oxidation by making comparative trials according to a well definite procedure.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:0368-4466