Use of TGA to study thermal ageing effects of polypropylene

Horrocks, Richard ORCID: 0000-0003-1431-058X and D'Souza, J.A. (1988) Use of TGA to study thermal ageing effects of polypropylene. Thermochimica Acta, 134. pp. 255-260. ISSN 0040-6031

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Abstract

The effective lifetimes of many orientated polymers like polypropylene films and fibres are defined in terms of the time required for a given environment to promote a sudden change in a macroscopic property;often catastrophic failure may follow such a change. TGA may be used to investigate the microscopic physico-chemical changes which occur during the induction period of thermally-aged polypropylene. Marked shifts in the temperatures of the onset and maximum rates of mass loss accompanying post-fusion oxidation of aged orientated films are observed which reflect the slight changes in macroscopic properties that also occur during the induction period. The apparent kinetic parameters of unaged and aged film post-fusion oxidations are determined

Item Type: Article
Divisions: University of Bolton Research Centres > Institute for Materials Research and Innovation
Depositing User: Tracey Gill
Date Deposited: 10 Aug 2018 07:50
Last Modified: 10 Aug 2018 07:50
Identification Number: 10.1016/0040-6031(88)85245-6
URI: http://ubir.bolton.ac.uk/id/eprint/1841

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