Effect of adding different silane coupling agents on metal friction and wear in mixing process,Journal of Applied Polymer Science

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Effect of adding different silane coupling agents on metal friction and wear in mixing process
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2021-07-29 , DOI: 10.1002/app.51408
Deshang Han ₁ , Yi Pan ₁ , Junxiu Xue ₁ , Benhui Yu ₁ , Gang Yan ₁ , Chuansheng Wang _{1,

2,

3} , Kongshuo Wang ₁ , Yiren Pan ₁

Affiliation

The function of silane coupling agent in rubber mixing field is to combine inorganic matrix with rubber organic matrix. Silica is commonly used in the rubber mixing field to strengthen rubber. The size and amount of silica aggregates in the mixing process are important factors affecting the wear of the mixing chamber. The wear of the mixing chamber would lead to a increasing gap between the mixer chamber and the rotor, which caused the mixing efficiency reducing. It also affected the dispersion effect, then affected the mechanical and physical properties of the vulcanized rubber. In this paper, the effects of rubber compound on metal friction and wear were studied by using four silane coupling agents commonly used in rubber mixing field. The experiment was carried out at 15°C, and the attention should be paid to drying during sample preparation to avoid the deviation of the experiment caused by hydrolysis of silane coupling agent. The results showed that silanization reaction occured between silica and silane coupling agent in the mixing process. The mixing temperature was usually maintained at 145 to 155°C for 1 min in the mixer, and the silanization reaction rate was the fastest during this time. We took this rubber compound as the research object and studied the friction and wear of the rubber compound on the mixing chamber in the mixing process. The products of the silylation reaction are alcohol and water. This paper studies the corrosion and abrasion of the mixing chamber by water at high temperatures. In the mixing process, abrasive wear was the main wear form, but the corrosion wear caused by high temperature steam still occupied a large proportion.

中文翻译：

添加不同硅烷偶联剂对混合过程中金属摩擦磨损的影响

硅烷偶联剂在橡胶混炼领域的作用是将无机基体与橡胶有机基体结合。二氧化硅常用于橡胶混炼领域以增强橡胶。混合过程中硅石骨料的大小和数量是影响混合室磨损的重要因素。混合室的磨损会导致混合室与转子之间的间隙增大，从而导致混合效率降低。它还影响了分散效果，进而影响了硫化橡胶的机械和物理性能。本文采用混炼领域常用的四种硅烷偶联剂，研究了混炼胶对金属摩擦磨损的影响。实验在 15°C 下进行，制样时要注意干燥，避免硅烷偶联剂水解造成实验偏差。结果表明，二氧化硅与硅烷偶联剂在混合过程中发生了硅烷化反应。混合温度通常在混合机中保持在145～155℃1分钟，这段时间内硅烷化反应速度最快。我们以该胶料为研究对象，研究了胶料在混炼过程中对混炼室的摩擦磨损。甲硅烷基化反应的产物是醇和水。本文研究了高温水对混合室的腐蚀和磨损。在混合过程中，磨粒磨损是主要的磨损形式，

更新日期：2021-09-09

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