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  4. Model for heterogeneous aging of rubber products
 
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Model for heterogeneous aging of rubber products

Publikationstyp
Journal Article
Date Issued
2011
Sprache
English
Author(s)
Steinke, Lars
Spreckels, Jörg  
Zuverlässigkeitstechnik M-24 (H)  
Flamm, Martin  
Celina, M.
TORE-URI
https://hdl.handle.net/11420/43884
Journal
Plastics, Rubber and Composites
Volume
40
Issue
4
Start Page
175
End Page
179
Citation
Plastics, Rubber and Composites 40 (4): 175-179 (2011)
Publisher DOI
10.1179/1743289810Y.0000000042
Scopus ID
2-s2.0-79955913627
Rubbers and elastomers will change their material properties due to environmental influences such as temperature, oxygen, radiation and similar conditions. The reason for this material change is the modification of the polymer network. In the case of sulphur cured natural rubber it can result in hardening of the material and pronounced surface hardening for thick walled products. This is known as the diffusion limited oxidation effect when oxidation is the key environmental influence. This paper describes a model which is designed to calculate the change in network density caused by thermo-oxidative aging and the required measurements for the parameterisation. The model is validated by simulating the intermediate stress relaxation experiments and showed good correlation with the experimental data. © Institute of Materials, Minerals and Mining 2011.
Subjects
Aging
Diffusion limited oxidation
Elastomer products
Modulus profiling
Oxygen uptake
Stress relaxation
DDC Class
540: Chemistry
620: Engineering
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