并用比对CR/CM并用胶性能的影响

Effects of Blending Ratio on Properties of CR/CM Blends

研究CR/CM并用比对CR/CM并用胶性能的影响。结果表明:随着CM用量的增大,CR/CM并用胶的门尼粘度和定伸应力增大,拉伸强度、拉断伸长率均逐渐减小,撕裂强度呈先增大后减小趋势,耐热老化性能和耐油性能均提高,且常温耐油性能优于高温耐油性能;CR与CM具有较好的相容性。

The effects of blending ratio of CR/CM on the properties of CR/CM blends were investigated.The results showed that,as the addition level of CM increased,the Mooney viscosity and mo-dulus of CR/CM blends increased,the tensile strength and elongation at break decreased,the tear strength firstly increased and then decreased,hot air aging resistance and oil resistance improved,and the oil resistance at room temperature was better than that at high temperature;the compatibility between CR and CM was good.