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ConclusionsIn the present article, we have found the temperature effect onthe surface modification of silica. The modification of silica wasachieved by the condensation between the silanol of hydrolyzedTESPT and hydroxyl groups on the surface of silica. The introduced–CH2 group and surface thermal weight loss showed the successfulgrafting reaction after the modification of silica. The particle size ofMSaDT was lower and its distribution was narrower than that ofpure silica. Characterization results of the silica powder showedthat the optimum temperature for the modification of silica was50 C. For the MSaDT/SSBR composites of 50 C, the static anddynamic mechanical properties and the dispersion of the modifiedsilica in the rubber composite could achieve better status thanthose of the others. The MSaDT of 50 C could decrease the fillernetwork structure and give a better balance of high wet skid resistanceand low rolling resistance than that of the others. The surface modification study is crucial to the application of nanosilica in therubber industry as a kind of oil-independent filler. The modificationis of great importance in the development of new approachesfor the surface modification of silica, and the modified silica hasbright prospects in green tire applications.
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