| The property change of silica filled SSBR T1534 vulcanizate during tensile fatigue test was investigated and compared to silica filled SSBR T2000R vulcanizate.The results showed that,the tensile property of SSBR T1534 vulcanizate decreased significantly during tensile fatigue.As the number of fatigue testing cycle increased,the crosslink density of SSBR T1534 vulcanizate decreased while SSBR T2000R vulcanizate changed little;the peak of loss factor (tanδ) of SSBR T1534 vulcanizate increased obviously and widened slightly,while the peak of tanδ of SSBR T2000R vulcanizate increased slightly and widened obviously.When the number of fatigue testing cycle was the same,the storage modulus(E′) and Payne effect of SSBR T1534 vulcanizate were lower than those of SSBR T2000R vulcanizate,respectively,and E′,loss modulus and tanδ of SSBR T1534 vulcanizate were changed little during tensile fatigue test. |
