Analysis of the Creep Behaviour of Polypropylene

In this work, creep data for a polypropylene (PP) were obtained at different levels of tensile stress and temperature, and were then analysed in the light of a model developed, which is based on physical mechanisms (at the molecular scale) responsible for the material’s behaviour, considering that a...

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Detalhes bibliográficos
Autor principal: André, José Reinas (author)
Outros Autores: José, Cruz Pinto (author)
Formato: article
Idioma:eng
Publicado em: 2016
Assuntos:
Texto completo:http://hdl.handle.net/10314/3394
País:Portugal
Oai:oai:bdigital.ipg.pt:10314/3394
Descrição
Resumo:In this work, creep data for a polypropylene (PP) were obtained at different levels of tensile stress and temperature, and were then analysed in the light of a model developed, which is based on physical mechanisms (at the molecular scale) responsible for the material’s behaviour, considering that a minimum retardation time does exist. The model yields very good agreement with the experimental data and physically meaningful theoretical parameter values.