A molecular dynamics study on Young’s modulus and tribology of carbon nanotube reinforced styrene-butadiene rubber
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Styrene-butadiene rubber is a copolymer widely used in making car tires and has excellent abrasion resistance. The Young’s modulus and tribology of pure styrene butadiene rubber (SBR) polymer and carbon nanotube reinforced polymer composites have been investigated using molecular dynamics simulations. The mechanism of enhanced tribology properties using carbon nanotube has been studied and discussed. The obtained Young’s modulus shows the enhancement in mechanical properties of SBR polymer when carbon nanotubes are used as reinforcement. The concentration, temperature and velocity profiles, radial distribution function, frictional stresses, and cohesive energy density are calculated and analyzed in detail. The Young’s modulus of SBR matrix increases about 29.16% in the presence of the 5% CNT. The atom movement velocity and average cohesive energy density in the friction area of pure SBR matrix was found to be more than that of the CNT/SBR composite.
KeywordsStyrene butadiene rubber Carbon nanotube Composite Tribology
The authors would like to thank the Department of Mechanical Engineering, Lovely Professional University for providing the computation facility and the anonymous reviewers for their valuable comments and suggestions to improve the quality of the paper.
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