ABSTRACT

Cure kinetics of a friction material with different proportions of rubber/resin as organic binders are investigated. The effect of including two different phenolic resins with different B-transformation times is also analysed. An experimental characterisation is done using both a moving die rheometer and an industrial press. Then, predictive models based on Kamal–Sourour, Isayev, and Claxton–Liska equations are defined. Results showed that a higher amount of resin delivered lower induction times and better fitted phenomenological methods. Higher content of resin and resin with lower B-transformation time led to faster curing reactions at laboratory and industrial scales. Samples with no resin presented an induction time that greatly depended on temperature and fitted worse than the models.

摘要

研究了以不同比例的橡胶/树脂作为有机粘合剂的摩擦材料的固化动力学。还分析了包含两种具有不同 B 转化时间的不同酚醛树脂的影响。使用移动模头流变仪和工业压力机进行实验表征。然后，定义了基于 Kamal–Sourour、Isayev 和 Claxton–Liska 方程的预测模型。结果表明，树脂用量越高，诱导时间越短，现象学方法越适合。较高含量的树脂和较短 B 转化时间的树脂导致实验室和工业规模的固化反应更快。没有树脂的样品呈现出很大程度上取决于温度的诱导时间，并且比模型拟合得更差。