The natural rubber (NR) was mixed with fluoro elastomer (FKM), due
to the difference of polarity in NR and FKM made this blend incompatible so the
third component was used. NR/FKM blended with the blend ratio of 70/30 was
prepared by using a two-roll mill and vulcanization in a compression mold at
180℃ using peroxide as a curative agent. Epoxidized natural rubber
(ENR) or polyisoprene-graft-maleic acid monomethyl ester (PI-ME) was used as a third
component. The curing characteristics, morphology, mechanical properties, and
automotive fuel swelling were investigated. The results indicated that the
scorch time and cure time of the blend rubbers were longer as adding ENR or
PI-ME. Both mechanical properties and automotive fuel resistance of the blend
rubbers were found to increase with adding ENR in rubber blend. Conversely for
adding PI-ME, automotive fuel resistance of the blend rubbers was found to
decrease progressively with increasing PI-ME content.
Cite this paper
Phiriyawirut, M. , Limwongwatthananan, T. , Kaemram, S. and Wiengkaew, S. (2013) Natural Rubber/Fluoro Elastomer Blends: Effect of Third Component on Cure Characteristics, Morphology,Mechanical Properties, and Automotive Fuel Swelling. Open Journal of Polymer Chemistry
, 79-85. doi: 10.4236/ojpchem.2013.34014
 S. H. EL-Sabbagh, “Compatibility Study of Natural Rubber and Ethylene-propylene-diene Rubber Blends,” Journal of Applied Polymer Science, Vol. 90, No. 1, 2003, pp. 1-11.
 M. Phiriyawirut, “Preparation of Biodiesel Oil Resistance Rubbers from Natural Rubber/Fluoro Elastomer Blends,” Proceeding of the 2nd South East Asian Technical University Consortium (SEATUC) Symposium, Bandung, 2008, pp. 50-55.
 K. G. Karnika de Silva and M. V. Lewan, “Improving the Morphology and Properties of NR/NBR Blends with NR/ PMMA Graft Copolymers,” In: J. Tinker and K. P. Jones, Eds., Blends of Natural Rubber, A. Chapman & Hall, London, 1998, pp. 68-78.
 K. Prakashan, A. K. Gupta and S. N. Maiti, “Effect of Compatibilizer on Micromechanical Deformations and Morphology of Dispersion in PP/PDMS Blend,” Journal of Applied Polymer Science, Vol. 105, No. 5, 2007, pp. 2858-2867. http://dx.doi.org/10.1002/app.26510
 M. N. Radhakrishnan Nair and M. G. Gopinathan Nair, “Compatibility Studied and Characterisation of a PVC/ NR Blend System Using NR/PU Block Copolymer,” Polymer Bulletin, Vol. 56, No. 6, 2006, pp. 619-631.
 G. Guerrica-Echevarría, J. I. Eguiazábal and J. Nazábal, “Influence of Compatibilization on the Mechanical Behavior of Poly(trimethylene terephthalate)/poly(ethyleneoctene) Blends,” European Polymer Journal, Vol. 43, No. 3, 2007, pp. 1027-1037.
 K. A. Moly, S. S. Bhagawan, G. Groeninckx and S. Thomas, “Correlation between the Morphology and Dynamic Mechanical Properties of Ethylene Vinyl Acetate/Linear Low-Density Polyethylene Blends: Effects of the Blend Ratio and Compatibilization,” Journal of Applied Polymer Science, Vol. 100, No. 6, 2006, pp. 4526-4538.
 M. Abdul Kader and A. K. Bhowmick, “New Miscible Elastomer Blends from Acrylate Rubber and Fluorocarbon Rubber,” Rubber Chemistry and Technology, Vol. 73, No. 5, 2000, pp. 889-901.
 F. W. Barlow, “Rubber Compounding: Principles, Materials, and Techniques,” Marcel Dekker, Inc., New York, 1988.
 Agency for Toxic Substances and Disease Registry (ATSDR), “Toxicological Profile for Fuel Oils,” U.S. Department of Health and Human Services, Public Health Service, 1995.
 M. Phiriyawirut and S. Luamlam, “Influence of Poly(vinyl chloride) on Natural Rubber/Chlorosulfonated Polyethylene Blends,” Open Journal of Organic Polymer Materials, Vol. 3, 2013.