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Effect of antioxidants on the changes in the effective viscosity and tensile strength of polypropylene during processing and aging

✍ Scribed by A. A. Dontsov; P. Farka; B. A. Dogadkin

Publisher
Springer US
Year
1973
Tongue
English
Weight
305 KB
Volume
6
Category
Article
ISSN
1573-8922

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Tensile tests were made on polypropylene films as a function of aging temperature from 80 to 130ЊC at a strain rate of 5 cm min 01 . Polypropylene films aged at 60 and 100ЊC and at time intervals up to 180 min were also stretched at the same strain rate. The yield stress and initial modulus were fou