大比表面积活性氧化锌在轮胎肩垫胶中的应用

研究了大比表面积活性氧化锌在轮胎肩垫胶中的应用效果。试验结果表明 ,用 5份大比表面积活性氧化锌替代 8份普通氧化锌 ,胶料的门尼粘度略有下降 ,焦烧时间和t10 稍有延长 ,t90 缩短 ;硫化胶的邵尔A型硬度、拉伸强度、30 0 %定伸应力和撕裂强度均有所提高 ,而扯断伸长率和固特里奇生热有所降低 ;采用试验配方生产的轮胎成品性能明显提高 ,且配方成本下降

Application of active zinc oxide with large specific surface to shoulder pad

The application of the active zinc oxide with large specific surface to the shoulder pad was investigated.The results of test compound using 5 phr of active zinc oxide with large specific surface instead of 8 phr of conventional zinc oxide showed that the Mooney viscosity decreased a little,the scorch time and t 10 increased a little, t 90 reduced;the shore A hardness,tensile strength,300% modulus and tear strength of vulcanizate increased,and the elongation at break and Goodrich heat build-up decreased;the performance of finished tire using test compound improved significantly,and the formula cost decreased.