一次法混炼工艺研究及在胎面胶生产中的应用

Process Research of SSM and Its Application in Tread Compound Production

试验研究一次法不同混炼工艺对胶料性能的影响以及实际应用中混炼工艺的稳定性。结果表明,胶料进入开炼机成环后先冷却再捣胶,其炭黑分散度和耐磨性能更好,炭黑结合胶也相对较多;使用硫黄母胶片的一次法混炼工艺稳定,胶料老化后的耐磨性能相对普通混炼工艺提高显著,胶料各项指标满足要求。

The influence of the different mixing process of single step mixing （SSM）on the properties of the compound was investigated experimentally, and the stability of the mixing process in practical application was also studied. The results showed that, with the process in which blending started after the compound was firstly cooled when it was added into the mill, the dispersion of carbon black and wear resistance of the vulcanized rubber were better, and the content of carbon black bound rubber was higher. The mixing process of SSM with sulfur masterbatch sheet was stable,the wear resistance of the vulcanizates after aging was improved significantly compared with that from a common mixing process, and the properties of the compound met the requirements specification.