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Mechanical Properties of Natural Rubber Compounds Reinforced with Milled Carbon Fibers and Carbon Blacks

미분쇄 탄소섬유와 카본블랙으로 강화된 천연고무 컴파운드의 기계적 특성

  • Ham, Eun-Kwang (Korea Institute of Carbon Convergence Technology) ;
  • Choi, Kyeong-Eun (Department of Practical Arts Education, Jeonju National University of Education) ;
  • Seo, Min-Kang (Korea Institute of Carbon Convergence Technology)
  • Received : 2016.01.20
  • Accepted : 2016.03.21
  • Published : 2016.04.30

Abstract

This study investigated the mechanical properties of natural rubber (NR) compounds reinforced with carbon black (CB) and milled carbon fiber (MCF). An internal mixer and a two-roll-mill were used to prepare natural rubber compounds using various MCF concentrations (0, 2, 6, 12, 17 phr), and to align the MCF in the compounds. The tensile properties, tearing strength, and hardness of the compounds were measured. The study found that compounds with 40 phr CB and 2 phr MCF had the highest tensile strength. Compounds with higher MCF concentrations had greater hardness and tensile stress (100% modulus~300% modulus). Compounds with 40 phr CB and 6 phr MCF were found to have greater tearing strength. These results were probably due to the fact that high elasticity MCF was used, resulting in improved cohesion in the compounds.

Keywords

References

  1. Y. S. Cho and D. H. Cho, "Effect of Kenaf Fiber Loading on the Properties of Natural Fiber/Natural Ruber Composites", Elastomers Compos., 2011, 46, 186-194.
  2. B. H. Seo, K. H. Kim, and W. H. Kim, "Physical Properties of the Silica-Reinforced Tire Tread Compounds by the Increased Amount of Vulcanization Agents", Elastomers Compos., 2013, 48, 201-208. https://doi.org/10.7473/EC.2013.48.3.201
  3. J. F. Fu, W. Q. Yu, X. Dong, L. Y. Chen, H. S. Jia, L. Y. Shi, Q. D. Zhong, and W. Deng, "Mechanical and Tribological Properties of Natural Rubber Reinforced with Carbon Blacks and $Al_2O_3$ Nanoparticles", Mater. Des., 2013, 49, 336-346. https://doi.org/10.1016/j.matdes.2013.01.033
  4. P. Saramolee, N. Lopattananon, and K. Sahakaro, "Preparation and Some Properties of Modified Natural Rubber Bearing Grafted Poly(Methyl Methacrylate) and Epoxide Groups", Eur. Polym. J., 2014, 56, 1-10. https://doi.org/10.1016/j.eurpolymj.2014.04.008
  5. N. Rattanasom, S. Prasertsri, and T. Ruangritnumchai, "Comparison of the Mechanical Properties at Similar Hardness Level of Natural Rubber Filled with Various Reinforcing-Fillers", Polym. Test., 2009, 28, 8-12. https://doi.org/10.1016/j.polymertesting.2008.08.004
  6. B. Omnes, S. Thuillier, P. Pilvin, Y. Grohens, and S. Gillet, “Effective Properties of Carbon Black Filled Natural Rubber: Experiments and Modeling”, Compos. A, 2008, 39, 1141-1149. https://doi.org/10.1016/j.compositesa.2008.04.003
  7. A. I. Dacikj, G. B. Gaceva, S. Rooj, S. Wiebner, and G. Heinrich, "Fine Tuning of the Dynamic Mechanical Properties of Natural Rubber/Carbon Nanotube Nanocomposites by Organically Modified Montmorillonite: A First Step in Obtaining High-Performance Damping Material Suitable for Seismic Application", Appl. Clay Sci., 2015, 118, 99-106. https://doi.org/10.1016/j.clay.2015.09.009
  8. L. L. Wang, L. Q. Zhang, and M. Tian, "Mechanical and Tribological Properties of Acrylonitrile-Butadiene Rubber Filled with Graphite and Carbon Black", Mater. Des., 2012, 39, 450-457. https://doi.org/10.1016/j.matdes.2012.02.051
  9. D. M. Bielinski and A. Stepkowska, "Mechanical Properties and Friction of Rubber Vulcanizates: Aspects of Crosslink Structure", Arch. Civ. Mech. Eng., 2013, 13, 192-198. https://doi.org/10.1016/j.acme.2012.12.004
  10. N. Rattanasom and S. Prasertsri, "Mechanical Properties, Gas Permeability and Cut Growth Behaviour of Natural Rubber Vulcanizates: Influence of Clay Types and Clay/Carbon Black Ratios", Polym. Test., 2012, 31, 645-653. https://doi.org/10.1016/j.polymertesting.2012.04.001
  11. S. M. Hosseini and M. R. Kashani, “Vulcanization Kinetics of Nano-Silica Filled Styrene Butadiene Rubber”, Polymer, 2014, 55, 6426-6434. https://doi.org/10.1016/j.polymer.2014.09.073
  12. Q. Fang, B. Song, T. T. Tee, L. T. Sin, D. Hui, and S. T. Bee, “Investigation of Dynamic Characteristics of Nano-Size Calcium Carbonate Added in Natural Rubber Vulcanizate”, Compos. B, 2014, 60, 561-567. https://doi.org/10.1016/j.compositesb.2014.01.010
  13. F. Cataldo, "Study on the Reinforcing Effect of Milled Carbon Fibers in a Natural Rubber Based Composite", J. Macromol. Sci. Part B Phys., 2008, 47, 818-828. https://doi.org/10.1080/00222340802122798
  14. S. R. Ryu and D. J. Lee, "Effects of Short-fiber Aspect Ratio and Diameter Ratio on Tensile Properties of Reinforced Rubber", Compos. Res., 2003, 16, 18-25.
  15. S. J. Park, M. K. Seo, M. L. Park, and H. Y. Kim, "Carbon Materials", Myoungmoon Co., 2015, pp.31-202.
  16. C. S. Ryu, C. K. Hong, C. W. Moon, and S. Y. Kang, “Effects of Particle Size and Structure of Fillers on the Friction and Wear Behavior of Filled Elastomer”, Elastomer, 2006, 41, 194-204.
  17. M. Ahmadi and A. Shojaei, “Cure Kinetic and Network Structure of NR/SBR Composites Reinforced by Multiwalled Carbon Nanotube and Carbon Blacks”, Thermochim. Acta, 2013, 566, 238-248. https://doi.org/10.1016/j.tca.2013.06.004
  18. M. C. Li, Y. Zhang, and U. R. Cho, "Mechanical, Thermal and Friction Properties of Rice Bran Carbon/Nitrile Rubber Composites: Influence of Particle Size and Loading", Mater. Des., 2014, 63, 565-574. https://doi.org/10.1016/j.matdes.2014.06.032
  19. C. Unterweger, J. Duchoslav, D. Stifter, and C. Furst, "Characterization of Carbon Fiber Surfaces and Their Impact on the Mechanical Properties of Short Carbon Fiber Reinforced Polypropylene Composites", Compos. Sci. Technol., 2015, 108, 41-47. https://doi.org/10.1016/j.compscitech.2015.01.004
  20. C. W. Nah, J. M. Rhee, W. D. Kim, S. Y. Kaang, Y. W. Chang, and S. J. Park, “Effects of Chemical Surface Modification of Carbon Black on Vulcanization and Mechanical Properties of Styrene-Butadiene Rubber Compound”, Elastomer, 2001, 36, 44-51.