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Concentration Effects of Organosilane (TESPD) on Mechanical Properties of Silica Filled Silicone Rubber/Natural Rubber Compounds

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Published/Copyright: April 6, 2013
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Abstract

The concentration effects of the silane coupling agent bis (triethoxysilylpropyl) disulfide (TESPD) on mechanical properties of silica-filled silicone rubber (SR)/natural rubber (NR) compound are investigated upon torque maximum value, tensile strength, tensile modulus and hardness. The compounds are cured with a conventional vulcanization system. The concentration range of the TESPD used is 1 to 17 phr. The optimum concentration of the TESPD is found to be 13 phr in the SR/NR compound. The degree of dispersion of silica in the rubber matrix is also examined by scanning electron microscopy (SEM).


Mail address: Kwang-Jea Kim, Institute of Polymer Engineering, The University of Akron, OH 44325-0301, USA. E-mail:

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Received: 2010-02-04
Accepted: 2011-04-08
Published Online: 2013-04-06
Published in Print: 2011-09-01

© 2011, Carl Hanser Verlag, Munich

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