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CARBONLETT, vol. 27, no. 1, pp.72-80, 2018

DOI: http://dx.doi.org/ DOI:10.5714/CL.2018.27.072

Comparative study on carboxylated styrene butadiene rubber composites reinforced by hybrid fillers of rice bran carbon and graphite carbon

Yuan Fan1, Qingyuan Li1, Xiangxu Li1, Dam hee Lee1 and Ur Ryong Cho1,2,♠

Affiliation: 1School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education, Cheonan 31253, Korea
2Research Center of Eco-friendly & High-performance Chemical Materials, Cheonan 31253, Korea

Abstract: In the present work, a comparative study of the mechanical behavior of two series of elastomeric composites, based on carboxylated styrene butadiene rubber (X-SBR) and reinforced with rice bran carbon (RBC) and graphite, is reported. Hybrid composites of X-SBR filled with RBC-graphite were also investigated in terms of the cure characteristics, hardness, tensile properties, abrasion resistance, and swelling. It was observed that the cure times decreased with the incorporation of a carbon filler whereas the torque difference, tensile strength, tensile modulus, hardness, and swelling resistance increased compared to the neat X-SBR revealing a favorable characteristic of crosslinking. Dynamic rheological analysis showed that the G' values of the composites, upon the addition of RBC-graphite, were changed to some extent. This demonstrates that the presence of a strongly developed network of fillers will ensure a reinforcing characteristic in a polymer matrix.

Keyword: rice bran carbon, graphite, mechanical properties, composites, carboxylated styrene butadiene rubber