摘要
研究混炼工艺对白炭黑硅烷偶联反应程度及胶料性能的影响。结果表明:随着白炭黑硅烷偶联反应程度的增大,胶料的门尼焦烧时间延长,硫化速度加快,小应变下的模量减小,Payne效应降低,填料与填料之间的相互作用减弱,70℃时的损耗因子明显减小,白炭黑在胶料中的分散均匀性提高;白炭黑硅烷偶联反应程度对混炼温度的敏感度较高,混炼温度对硅烷偶联反应程度的影响大于混炼时间的影响;当混炼温度为140~145℃、混炼时间为100~180 s时,胶料的物理性能最佳。通过计算白炭黑硅烷偶联反应的表观活化能,得到大配合试验胶料混炼工艺的最佳混炼时间。
The effects of mixing processes on the silane coupling reaction degree of silica and the properties of silica filled rubber compounds were studied.The results showed that with the increase of silane coupling reaction degree of silica,the Mooney scorch time of the compound was prolonged,the curing rate was accelerated,the modulus under small strain and the Payne effect decreased,the filler-filler interaction was weakened,the loss factor at 70℃was significantly reduced,and the dispersion uniformity of silica in the compound was improved.It was found that the silane coupling reaction degree of silica was highly sensitive to mixing temperature,and the influence of mixing temperature on silane coupling reaction degree of silica was greater than that of mixing time.When the mixing temperature was 140~145℃and the mixing time was 100~180 s,the physical properties of the compound were the best.By calculating the apparent activation energy of the silane coupling reaction of silica,the optimum mixing time for the workshop process was obtained.
作者
赵晓东
董康
刘文国
陈亚婷
王鹭飞
黄义钢
王君
ZHAO Xiaodong;DONG Kang;LIU Wenguo;CHEN Yating;WANG Lufei;HUANG Yigang;WANG Jun(Qingdao Doublestar Tire Industry Co.,Ltd,Qingdao 266400,China)
出处
《轮胎工业》
CAS
2023年第7期424-430,共7页
Tire Industry
关键词
混炼工艺
白炭黑
硅烷偶联反应程度
加工性能
物理性能
动态力学性能
mixing process
silica
silane coupling reaction degree
processability
physical property
dynamic mechanical property
作者简介
赵晓东(1993-),男,山东青岛人,青岛双星轮胎工业有限公司工程师,硕士,主要从事轮胎橡胶材料研究及配方开发工作。E-mail:zhaoxiaodong@doublestar.com.cn。
