Technical Paper Archive


This site contains all papers presented at Rubber Division, ACS Technical Meetings from 2000-2018. Meetings prior to 2000 are incomplete and papers are added as they are digitized.


For older papers not listed here, please send your request, including Meeting Year, Title, Author, and Paper # to: cbrady@rubber.org


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Bridging the gap: Advanced methodologies for close-to-reality lab scale compatibility assessment of sealing materials and Biofuels

6

Event: 182nd Technical Meeting
Location: Cincinnati, OH
Date: October 09, 2012
Author: Markus Honoldl6, Ralf Salameh, Bhawani Tripathy
Paper Number: 6

Price: $20.00

  • With the worldwide strive of the automotive industry to evaluate and develop alternative mobility concepts, the incorporation of alternative fuels into the current fuel pool gains a strong position in the race to the future. The understanding of the interaction of these novel fuels with engine components, especially sealing materials, is mandatory for the long-life operation of an engine system. Current analytical techniques to determine the impact of Biofuels on sealing material properties lack strong correlation with engine performance in the field. In this paper, major drawbacks of current lab techniques used for evaluation of different Biofuels and OillBiofuel mixtures are highlighted. For example, current lab test results with oil contaminated with 10vol% E85 yielded 145% increase in volume for a standard Polyacrylate Rubber (ACM) under moderate conditions, clearly signaling a destruction of the sealing function, whereas, Original Equipment Manufacturers (OEM) do not report significant issues during engine tests with E85. Therefore, a new generation of modular lab scale test equipment has been developed, that enables the evaluation sealing material compatibility with a wide range of ethanol- and Biodiesel based Biofuels and OillBiofuel mixtures under application-like conditions. The results show that under a broad range of conditions, the maximum volume swell of an ACM sealing material in an engine environment does not exceed 14%, which is more in line with field experience.

    Papers from 182nd Technical Meeting

    Items from 182nd Technical Meeting