基于用石墨填充的单元粉末环氧矩阵的复合材料的tribological特性
Jakub Smoleń1, Krzysztof Stępień1, Marta Mikuśkiewicz1
1Faculty of Materials Engineering, Silesian University of Technology, Krasińskiego 8, 40-019 Katowice, Poland.
Materials (Basel, Switzerland)
|July 13, 2024
概括
用石墨增强的粉末环氧复合材料为自滑材料提供了具有成本效益的替代品. 添加超过10%的石墨可以显著降低摩擦,提高三角学性能.
科学领域:
- 材料科学 材料科学 材料科学
- 部落学 (tribology) 是一个学科.
- 聚合物复合材料 聚合物复合材料
背景情况:
- 单元环氧粉末矩阵是复合材料制造中传统液态环氧树脂的可行替代品.
- 石墨增强复合材料正在探索它们在tribological应用中的潜力,旨在改善材料性能和减少磨损.
研究的目的:
- 详细说明使用单元环氧粉末矩阵的石墨增强环氧复合材料的生产工艺.
- 评估这些复合材料的机械和 tribological 属性,这些复合材料具有不同的石墨填充剂含量和颗粒大小.
- 为了研究这些新型复合材料中 Tribological 磨损的机制.
主要方法:
- 使用石墨填充剂 (颗粒大小<10微米和<45微米) 制造5%,10%,20%和30%的环氧复合材料.
- 机械测试用于评估材料的强度和完整性.
- 使用pin-on-block方法进行tribological测试,以评估摩擦和磨损特征.
主要成果:
- 无论颗粒大小如何,在重量上加上10%以上的石墨导致摩擦系数大幅下降 (与未填充的环氧相比,减少了40-50%).
- 该研究确定了与石墨填充环氧复合材料相关的特定磨损机制.
- 发现最佳的石墨含量可以显著提高自滑性能.
结论:
- 使用石墨的单元环氧粉复合材料对于创建低摩擦,自滑材料是有效的.
- 石墨钢筋显著提高了三角学性能,使这些复合材料适合于具有成本效益的应用.
- 这些发现支持使用这些复合材料作为各种工程领域的可持续替代品.
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