Influence of Thermal and Oil Aging on Weldline Strength of NR/EPDM and NR/NBR Blends

Authors

  • Somjate Patcharaphun Department of Materials Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand.
  • Watcharapong Chookaew Department of Mechanical Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand.
  • Tanawat Tungkeunkunt Department of Mechanical Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand.

Keywords:

weldline strength, rubber blends, compression molding process

Abstract

Weldline is one of the typical molding defects and appears at the meeting points of multiple melt flows. The presence of weldlines in rubber products is regarded as one of the most undesirable phenomena, since it may result in poor mechanical properties as well as surface appearances. Compression moldings of large or complicated products are usually prepared by multiple charges, which produce weldlines once the melt fronts are joined by impingement flow. In the present study, ethylene propylene diene monomer and acrylonitrile butadiene rubber were blended into natural rubber (NR) in order to enhance the aging properties with respect to the heat, oil and ultraviolet resistances of an NR specimen containing a weldline. 

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Published

2011-10-30

How to Cite

Somjate Patcharaphun, Watcharapong Chookaew, and Tanawat Tungkeunkunt. 2011. “Influence of Thermal and Oil Aging on Weldline Strength of NR/EPDM and NR/NBR Blends”. Agriculture and Natural Resources 45 (5). Bangkok, Thailand:909-16. https://li01.tci-thaijo.org/index.php/anres/article/view/245381.

Issue

Vol. 45 No. 5 (2011): September-October

Section

Research Article

License

online 2452-316X print 2468-1458/Copyright © 2022. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/),
production and hosting by Kasetsart University of Research and Development Institute on behalf of Kasetsart University.