不同类型密炼机转子对白炭黑填充溶聚丁苯橡胶/天然橡胶胶料性能的影响

Effect of Different Types of Internal Mixer Rotors on Properties of Silica Filled SSBR/NR Compound

针对白炭黑填充溶聚丁苯橡胶/天然橡胶胶料,研究不同类型密炼机转子(啮合型转子和剪切型转子)对胶料性能的影响。结果表明:采用啮合型转子密炼机混炼白炭黑胶料,能够降低白炭黑在胶料中的絮凝和胶料的Payne效应,延长胶料的焦烧时间,提升胶料加工安全性,同时可以降低胶料的滚动阻力,提高胶料老化后的物理性能。

For the silica-filled solution polymerized styrene-butadiene/natural rubber compound,the influence of different types of internal mixer rotors(kneading rotor and shearing rotor)on the properties of the compound was studied.The results showed that the use of a kneading rotor internal mixer to mix silica compound could reduce the silica aggregation in the compound,reduce the Payne effect of the compound,extend the scorch time,and improve the processing safety.At the same time,it could reduce the rolling resistance of the compound and improve the physical properties after aging.