关于Cu填充的烯酸烯酸丁 styrene微型复合材料的结构,热,微机械和tribological特性
Mabrouka Akrout1, Basma Ben Difallah1, Mohamed Kharrat1
1Laboratory of Electromechanical Systems, National School of Engineers of Sfax, University of Sfax, Soukra Road, Km 3.5, PO Box 1173, Sfax 3038, Tunisia.
Materials (Basel, Switzerland)
|October 14, 2023
概括
将铜 (Cu) 添加到烯酸丁 styrene (ABS) 聚合物中,可以增强其机械和 tribological 特性. 这些新的聚合物/金属复合材料表现出更好的硬度和耐磨性,使它们适用于轴承应用.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物工程 聚合物工程
- 部落学 (tribology) 是一个学科.
背景情况:
- 轴承应用需要具有出色机械和tribological性能的材料.
- 聚合物复合材料为传统金属轴承提供轻量化替代品,但往往缺乏足够的耐磨性.
- 用导电填充剂增强聚合物矩阵可以提高其性能特征.
研究的目的:
- 研究新型聚合物/金属复合材料的结构性,热性,微机械性和三元学性质.
- 评估铜 (Cu) 填充的烯酸丁 styrene (ABS) 复合材料在轴承应用中的潜力.
主要方法:
- 铜 () 粉末通过内部混合和注射成型将不同重量百分比 (5%,10%,15%) 纳入ABS.
- 材料的表征包括扫描电子显微镜 (SEM),微图形,差分扫描热量计 (DSC),X射线衍射 (XRD),纳米缩影和针对圆盘三角计.
- 经过测试的材料:清洁的ABS,ABS+5wt% Cu,ABS+10wt% Cu,ABS+15wt% Cu.
主要成果:
- SEM和微观断层扫描证实了ABS矩阵内Cu颗粒的均分散.
- DSC显示了玻璃过渡温度的增加,而XRD显示,随着Cu的添加,无形相强度降低.
- 与纯净的ABS相比,纳米和维克斯硬度测试显示所有Cu填充复合材料的硬度和弹性模量显著增加.
- 摩擦和磨损分析表明,随着Cu填料的加入,tribological性能得到了改善.
结论:
- 加入的铜 (Cu) 填充剂在ABS矩阵内均分散,增强热性能.
- 用Cu填充的ABS复合材料表现出优越的微机械性能,包括增加硬度和模量.
- 添加Cu填充剂显著提高了摩擦和耐磨性,证实了这些材料适用于苛刻的轴承应用的适用性.
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