Table of Contents
Journal of Fuels
Volume 2014 (2014), Article ID 429608, 8 pages
http://dx.doi.org/10.1155/2014/429608
Research Article

Compatibility Studies on Elastomers and Polymers with Ethanol Blended Gasoline

Indian Oil Corporation Limited, R&D Division, Sector 13, Faridabad, Haryana 121007, India

Received 26 June 2013; Accepted 29 October 2013; Published 29 January 2014

Academic Editors: X. Lu and A. W. Mohammad

Copyright © 2014 J. S. Dhaliwal et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper reports the compatibility studies of 10% ethanol blended gasoline (E10) with four types of elastomer materials, namely, Neoprene rubber, Nitrile rubber, hydrogenated Nitrile butadiene rubber (HNBR), and Polyvinyl chloride/Nitrile butadiene rubber blend (PVC/NBR), and two types of plastic materials, namely, Nylon-66 and Polyoxymethylene (Delrin). These materials have applications in automotives as engine seals, gaskets, fuel system seals and hoses, and so forth. Two types of the ethanol blended gasoline mixtures were used: (a) gasoline containing 5% ethanol (E5), which is commercial form of gasoline available in India, and (b) gasoline containing 10% ethanol (E10). The above materials were immersed in E5 and E10 for 500 hrs at 55°C. A set of eight different properties in E5 and E10 (visual inspection, weight change, volume change, tensile strength, percent elongation, flexural strength, impact strength, and hardness) were measured after completion of 500 hrs and compared with reference specimens (specimens at 55°C without fuel and specimens at ambient conditions). Variation observed in different materials with respect to the above eight properties has been used to draw inference about the compatibility of these elastomeric/polymer materials with E10 fuel vis-à-vis E5 fuels. The data presented in this study is comparative in nature between the results of E10 and E5.