教授
博士生导师
硕士生导师
教师拼音名称：shixinyan
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所在单位：橡塑材料与工程省部共建教育部重点实验室
职务：橡塑材料与工程省部共建教育部重点实验室常务副主任
学历：博士研究生
办公地点：青岛市舞阳路51-1号青岛科技大学橡塑楼406房间
性别：女
联系方式：0532-84022468
学位：博士
职称：教授
毕业院校：青岛科技大学
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关键字：cure kinetic; non-linear fitting; Origin 6.0; reversion; sulfur
摘要：Based on the cure characteristics of the Natural Rubber/Sulfur/N-t-butylbenzothiazole-2-sulfenamide (NR/S/TBBS)system, a kinetic model with induction, curing, and over-cure periods was chosen to simulate the cure reaction of this system. Cure-curves reflecting the development of torque were recorded as a function of cure time for NR compounds by a rubber processing analyzer The cure curves were then non-linear fitted. The results show that the simulated curves fit well with the experimental curves. Rate constant K(2) for formation of activated crosslink precursors is much higher that? rate constant K(6) for crosslink degradation under the same cure condition. Reaction activation energy E(2) and E(6) calculated from K(2) and K(6) through the Arrhenius equation showed that E(6) is higher than E(2). The increase of sulfur dosage led to the decrease of E(6) and E(2), but E(6) decreased more evidently.
卷号：48
期号：4
是否译文：否
