• français
    • English
    français
  • Login
Help
View Item 
  •   Home
  • Laboratoire Procédés et Ingénierie en Mécanique et Matériaux (PIMM)
  • View Item
  • Home
  • Laboratoire Procédés et Ingénierie en Mécanique et Matériaux (PIMM)
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Predictive ageing of elastomers: Oxidation driven modulus changes for polychloroprene

Article dans une revue avec comité de lecture
Author
LE GAC, Pierre Yves
300022 Institut Français de Recherche pour l'Exploitation de la Mer [IFREMER]
CELINA, Mathew C.
48310 Sandia National Laboratories [Livermore]
ROUX, Gérard
VERDU, Jacques
301320 École Nationale Supérieure d'Arts et Métiers [ENSAM]
DAVIES, Peter
300022 Institut Français de Recherche pour l'Exploitation de la Mer [IFREMER]
ccFAYOLLE, Bruno
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]

URI
http://hdl.handle.net/10985/16040
DOI
10.1016/j.polymdegradstab.2016.06.014
Date
2016
Journal
Polymer Degradation and Stability

Abstract

The oxidative ageing in the range of 60 °C–140 °C of sulfur vulcanized polychloroprene has been studied by FTIR spectroscopy (double bond consumption), modulus changes and oxygen absorption measurements. Experiments were carried out on thin films and thick samples to investigate both homogeneous and inhomogeneous (diffusion controlled) oxidation with the goal of establishing the underlying correlation between oxidative degradation chemistry and mechanical property changes. A correlation between oxidatively driven degradation chemistry and modulus is possible using the established approaches of rubber elasticity where an effective crosslinking yield due to double bond reactions is of the order of 30% for this material (i.e. the loss of 3 double bonds results in one effective crosslink associated with material hardening). It is then possible to predict modulus changes induced by oxidation for vulcanized and unstabilized polychloroprene rubber. A kinetic model is introduced with two propagation reactions (hydrogen abstraction and radical addition to double bonds) and two stabilization processes involving sulfur containing moieties from the vulcanization process. The kinetic scheme was solved and the relevant rate constants determined. This model can adequately predict modulus changes in films and thick samples as a function of time and spatially resolved.

Files in this item

Name:
PIMM_PDS_2016_LE GAC.pdf
Size:
1.090Mb
Format:
PDF
View/Open

Collections

  • Laboratoire Procédés et Ingénierie en Mécanique et Matériaux (PIMM)

Related items

Showing items related by title, author, creator and subject.

  • Oxidation of unvulcanized, unstabilized polychloroprene: A kinetic study 
    Article dans une revue avec comité de lecture
    LE GAC, Pierre Yves; ROUX, Gérard; VERDU, Jacques; DAVIES, Peter; ccFAYOLLE, Bruno (Elsevier, 2014)
    Thermal oxidation in air at atmospheric pressure, in the 80-140 °C temperature range and in oxygen at 100 °C in the 0.02-3 MPa pressure range, of unvulcanized, unstabilized, unfilled polychloroprene (CR) has been characterized ...
  • Water clustering in polychloroprene 
    Article dans une revue avec comité de lecture
    LE GAC, Pierre Yves; ROUX, Gérard; DAVIES, Peter; VERDU, Jacques; ccFAYOLLE, Bruno (Elsevier, 2014)
    Water sorption has been studied gravimetrically for polychloroprene rubber samples, first at a fixed hygrometric ratio (98% HR) and several temperatures (25, 40, 60 and 80 °C) for samples of 1.8 and 3.8 mm thickness (Constant ...
  • Role of strain induced crystallization and oxidative crosslinking in fracture properties of rubbers 
    Article dans une revue avec comité de lecture
    LE GAC, Pierre Yves; BROUDIN, Morgane; ROUX, Gérard; VERDU, Jacques; DAVIES, Peter; ccFAYOLLE, Bruno (Elsevier, 2014)
    Tensile properties and crack propagation properties, especially critical strain energy release rate in mode I, GIC, have been used to investigate fracture properties of elastomers and their relationships with microstructure. ...
  • Relationship between macromolecular network and fatigue properties of unfilled polychloroprene rubber 
    Article dans une revue avec comité de lecture
    LE GAC, Pierre-Yves; ALBOUY, Pierre-Antoine; VERDU, Jacques; ccFAYOLLE, Bruno (Elsevier, 2021)
    Fatigue life of unfilled polychloroprene rubber is characterized in fully relaxing (R = 0) and non-relaxing conditions (R = 0.2) for more than 15 network structures. Network changes are induced by thermal oxidation ageing ...
  • Thermooxidative aging of polydicyclopentadiene in glassy state 
    Article dans une revue avec comité de lecture
    LE GAC, Pierre Yves; VERDU, Jacques; LE GAC, Pierre Yves; ccRICHAUD, Emmanuel (Elsevier, 2014)
    Thermal aging of thin films of unstabilized polydicyclopentadiene (pDCPD) at several temperatures ranging from 120 to 30 C was investigated by means of carbonyl build up by FTIR with ammonia derivatization, double bond ...

Browse

All SAMCommunities & CollectionsAuthorsIssue DateCenter / InstitutionThis CollectionAuthorsIssue DateCenter / Institution

Newsletter

Latest newsletterPrevious newsletters

Statistics

Most Popular ItemsStatistics by CountryMost Popular Authors

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales