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Effects of Jatropha Oil on Degradation of Fluoroelastomer and Silicone Rubber Automotive Seals
Technical Paper
2017-01-2330
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Flouroelastomers and silicone rubbers are commonly employed in static and dynamic seals for automotive applications. In order to prevent premature failures and leakages caused by swelling and/or changes in their mechanical properties, materials for seals are selected according to their compatibility with the environment and fluids involved in the engine operation. Thus, in particular, the use of new fuels and additives in automotive engines requires the assessment of compatibility with common sealing elastomers to prevent failures. Currently, Jatropha oil is being used as a renewable source of fuel in diesel engines for electricity production, transport or agricultural mechanization in various countries. It is used either as biodiesel or as straight vegetable oil (SVO) since it has good heating power and provide exhaust gas with almost no sulfur or aromatic polycyclic compounds. However, the compatibility of elastomers with this SVO has not been investigated yet. Therefore, in this work, the physical degradation of silicone rubber (VMQ) and fluoroelastomer/Viton® (FKM) in contact with three fuels, namely, straight Jatropha oil (SJO), diesel, and a blend 80 wt%-diesel 20 wt% SJO was studied via static immersion tests (670 h at 24°C) according to the ASTM-D471 method. Changes in mass, volume, tensile and tear resistance and hardness were assessed according to the standard method. Since viscoelasticity is also an important property for the sealing performance of elastomers, the changes in creep compliance were determined by creep tests. In addition, the changes of surface morphology and topography were evaluated by scanning electron microscopy (SEM) and optical profilometry, respectively, in order to evidence pitting or cracking caused by degradation. Overall, according to the standard method, low degradation was found for both elastomers immersed in SJO, VMQ being the less degraded. However, a loss of resilience was observed for both materials in the different fluids, which may be relevant in certain applications.
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Farfan-Cabrera, L., Gallardo, E., and Pérez-González, J., "Effects of Jatropha Oil on Degradation of Fluoroelastomer and Silicone Rubber Automotive Seals," SAE Technical Paper 2017-01-2330, 2017, https://doi.org/10.4271/2017-01-2330.Data Sets - Support Documents
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References
- Flitney , R. Seals and Sealing Handbook Elsevier Science Publishers Limited 2014 6th England
- Hawkins , W. L. Polymer Degradation and Stabilization Springer-Verlag 1984 Berlin Heidelberg
- Mark , J. E. Polymer Data Handbook Oxford University Press 1999 Oxford, United Kingdom
- Kamalesh , A.S. , Purnanand , V.B. , Bharatkumar , Z.D. A Material Compatibility Study of Automotive Elastomers with high FFA based Biodiesel Energy Procedia 75 105 110 2015 http://dx.doi.org/10.1016/j.egypro.2015.07.151
- Haseeb , A.S.M.A. et al. Compatibility of elastomers in palm biodiesel Renewable Energy 35 2356 2361 2010 http://dx.doi.org/10.1016/j.renene.2010.03.011
- Zhu , L. et al. Compatibility of different biodiesel composition with acrylonitrile butadiene rubber (NBR) Fuel 158 288 292 2015 http://dx.doi.org/10.1016/j.fuel.2015.05.054
- Kass , M. D. et al. Compatibility assessment of fuel system elastomers with bio-oil and diesel fuel Energy Fuels 30 8 6486 6494 2016 10.1021/acs.energyfuels.6b01138
- Alves , S. M. , Mello , V. S. , Madeiros , J. S. Palm and soybean biodiesel compatibility with fuel system elastomers Tribology International 65 74 80 2013 https://doi.org/10.1016/j.triboint.2013.03.026
- Stavarache , C. et al. Fatty acids methyl esters from vegetable oil by means of ultrasonic energy Ultrasonics Sonochemistry 12 5 367 372 2005 http://doi.org/10.1016/j.ultsonch.2004.04.001
- No , S. Application of straight vegetable oil from triglyceride based biomass to IC engines - A review Renewable and Sustainable Energy Reviews 69 80 97 2017 http://doi.org/10.1016/j.rser.2016.11.007
- Sidibé , S.S. et al. Use of crude filtered vegetable oil as a fuel in diesel engines state of the art: Literature review Renewable and Sustainable Energy Reviews 14 9 2748 2759 2010 http://doi.org/10.1016/j.rser.2010.06.018
- Babu , A. and Devaradjane , G. Vegetable Oils And Their Derivatives As Fuels For CI Engines: An Overview SAE Technical Paper 2003-01-0767 2003 10.4271/2003-01-0767
- Pramanik , K. Properties and use of Jatropha curcas oil and diesel fuel blends in compression ignition engine Renewable Energy 28 239 248 2003 http://doi.org/10.1016/S0960-1481(02)00027-7
- Banapurmath , N.R. , Tewari , P.G. , Hosmath , R.S. Performance and emission characteristics of a DI compression ignition engine operated on Honge, Jatropha and sesame oil methyl esters Renewable Energy 33 9 1982 1988 2008 http://doi.org/10.1016/j.renene.2007.11.012
- Gmünder , S.M. et al. Life cycle assessment of village electrification based on straight jatropha oil in Chhattisgarh, India Biomass and Bioenergy 34 3 347 355 2010 http://doi.org/10.1016/j.biombioe.2009.11.006
- Bouffaron , P. , Castagno , F. , Herold , S. Straight vegetable oil from Jatropha curcas L. for rural electrification in Mali-A techno-economic assessment Biomass and Bioenergy 37 298 308 2012 http://doi.org/10.1016/j.biombioe.2011.11.008
- Portugal-Pereira , J. et al. Life cycle assessment of conventional and optimised Jatropha biodiesel fuels Renewable Energy 86 585 593 2016 http://doi.org/10.1016/j.renene.2015.08.046
- Raheman , H. , Kumari , S. Combustion characteristics and emissions of a compression ignition engine using emulsified jatropha biodiesel blend Biosystems Engineering 123 29 39 2014 http://doi.org/10.1016/j.biosystemseng.2014.05.001
- Martinez , H. J. The mexican jatropha seed: a bioenergetic alternative for Mexico Revista Digital Universitaria 8 12 2007 http://www.revista.unam.mx/vol.8/num12/art88/int88.htm
- Henning , R.K The Jatropha booklet e a guide to the Jatropha system and its dissemination in Africa Weissensberg bagani GbR 1st 2000
- Jongschaap , R.E.E. et al. Claims and Facts on J. curcas L. Global J. curcas evaluation, breeding and propagation programme Wageningen UR, The Netherlands Plant Research International, Report No. 158 2007
- Kass , M. and West , B. Compatibility of Fuel System Elastomers with Bio-Blendstock Fuel Candidates Using Hansen Solubility Analysis SAE Int. J. Fuels Lubr. 10 1 138 162 2017 10.4271/2017-01-0802
- Araiza , L. N. et al. Physicochemical properties of oil seeds of Jatropha curcas from wild populations, in Mexico Revista de la Facultad de Ciencias Agrarias 47 1 127 137 2015
- Gopale , K. D. and Zunjarrao , R. S. Variations in biochemical content of Jatropha curcas seeds collected from agroclimatic zones of Maharashtra state of India IUP Journal of Life Science 3 27 36 2011
- Farfan-Cabrera , L. I. et al. Determination of creep compliance, recovery and Poisson's ratio of elastomers by means of digital image correlation (DIC) Polymer Testing 59 245 252 2017 http://doi.org/10.1016/j.polymertesting.2017.02.010
- Findley , W. N. , Lai , J. S. , Onaran , K. Creep and relaxation of nonlinear viscoelastic materials Dover publications 1989 New York, USA