【摘要】 研究了用炭黑HM-G 411替代N 330对V带压缩胶硫化特性、力学性能及滞后损失等的影响。结果表明,随着炭黑HM-G 411替代量的增加,V带压缩混炼胶的焦烧时间延长、正硫化时间缩短,门尼黏度先减小后略有增大,对压缩胶的挤出加工性能影响不大;V带压缩硫化胶的拉伸强度和定伸应力总体上有所增大,Payne效应逐渐明显,HM-G 411的增强效果有所提升,扯断伸长率稍有下降,硬度的变化不大;温度扫描和应变扫描下的损耗因子均有所减小,动态生热降低。更多还原

【Abstract】 The effect of amount of carbon black HM-G 411 instead of N 330 on curing characteristics,mechanical properties and hysteresis loss of Vbelt compression rubber was investigated. The results showed that scorch time of compression rubber was extend with increase of HM-G 411,whereas optimum curing time was shortened. The Mooney viscosity was decreased first and then increased slightly. Meanwhile,there was no significant improvement on extrusion processing properties of compression rubber. On the whole,with increasing HM-G 411 amount,the tensile strength and modulus of compression rubber were improved,and Payne effect became increasingly obvious,which indicated a good reinforcing effect caused by HM-G 411. Other properties could be stated at follows: elongation at break,loss factor and dynamic heat build-up were decreased,yet hardness of compression rubber remained constant with increase of HM-G 411.更多还原