Han Deshang, Ma Quyang, Wang Jie, Chen Hongbo, Wang Chuansheng, Han Wenwen
College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China.
School of Automotive Engineering, Guangdong Polytechnic of Science and Technology, Zhuhai 519000, China.
Polymers (Basel). 2022 Jul 21;14(14):2961. doi: 10.3390/polym14142961.
Studies show that the long-term operation of a rubber mixer results in wear at the end face of the mixer. End face wear increases the gap between the mixing chamber and the end face, resulting in leakage and a reduction in the mixing performance, affecting the final product's quality. Therefore, it is essential to investigate the wear of the metal face during the mixing process. The present study added aramid fibers to a rubber compound using a mechanical blender to obtain a composite material. Then, the influence of the aramid fibers on the metal friction and wear of the end face of the mixer was analyzed. This article introduces the concept of the wear ratio and explores the friction and wear of metals from the perspective of formulation technology for the first time. With the addition of aramid fibers, the proportion of abrasive wear of rubber on metal decreased, and the proportion of corrosive wear increased during the mixing process; however, when the addition of aramid fibers exceeded 3 phr, the balance of abrasive wear of rubber on metal increased and the proportion of corrosive wear decreased. It was found that aramid fibers have the property of friction reduction, which reduces the wear of the rubber blend on the metal. When the amount of aramid fibers added was 3 phr, the amount of abrasion of the rubber compound on the metal was the lowest.
研究表明，橡胶密炼机的长期运行会导致密炼机端面磨损。端面磨损会增大混炼室与端面之间的间隙，从而导致泄漏并降低混炼性能，影响最终产品质量。因此，研究混炼过程中金属表面的磨损情况至关重要。本研究使用机械搅拌机向橡胶混合物中添加芳纶纤维以获得复合材料。然后，分析了芳纶纤维对密炼机端面金属摩擦和磨损的影响。本文首次引入磨损率的概念，并从配方技术的角度探讨金属的摩擦磨损。随着芳纶纤维的添加，混炼过程中橡胶对金属的磨粒磨损比例降低，腐蚀磨损比例增加；然而，当芳纶纤维的添加量超过3份/百份橡胶（phr）时，橡胶对金属的磨粒磨损平衡增加，腐蚀磨损比例降低。研究发现芳纶纤维具有减摩性能，可减少橡胶混合物对金属的磨损。当芳纶纤维的添加量为3 phr时，橡胶混合物对金属的磨损量最低。
