Inelastic response of thermo-oxidatively aged carbon black filled polychloroprene rubber. Part I: Viscoelasticity
Document Type
Article
Publication Date
11-1-2022
Abstract
The first part of a two parts study focuses on the inelastic response of carbon black-filled polychloroprene rubber undergoing thermo-oxidative aging. More precisely, the prominence of the present work is laid on the attempt to provide a better understanding of the network modification due to thermo-oxidative aging and its consequences on the macroscopic mechanical responses including viscoelasticity (in Part I) and Mullins effect (in Part II). For this purpose, the polychloroprene rubber specimens are exposed to a temperature of 120 degrees C for a duration of 2, 3, and 4 days to induce three different aging levels before undergoing various tests. Results indicated that during thermo-oxidative aging, crosslinking dominates chain scission, and the strain-induced crystallization becomes more pronounced. Furthermore, it is observed that the inelastic responses such as stress relaxation and strain-induced crystallization are strongly affected by this thermo-oxidative aging-induced network alteration.
Keywords
Thermo-oxidative aging, Crosslinking, Chain scission, Viscoelasticity, Strain-induced crystallization
Divisions
sch_che,mechanical
Funders
Uni- versity of Malaya through Impact -Oriented Interdisciplinary Research Grant (IIRG012A-2019),Uni- versity of Malaya through Impact -Oriented Interdisciplinary Research Grant (IIRG012B-2019)
Publication Title
Polymer Degradation and Stability
Volume
205
Publisher
Elsevier Science Inc
Publisher Location
THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND