Effects of introducing self-lubricating fillers on the friction and wear properties of 3D-printed carbon nanotube reinforced polyetherimide composites

被引：0

作者：

Liang, Shi-Wei ^{[1
]}

Chen, Qing ^{[1
]}

Liu, Quan-Xiu ^{[1
]}

Guan, Bo-Wen ^{[1
]}

Zhang, Yuan-Yuan ^{[1
]}

Huang, Pei ^{[1
]}

Li, Yuan-Qing ^{[1
]}

Fu, Shao-Yun ^{[1
]}

机构：

[1] Chongqing Univ, Coll Aerosp Engn, Chongqing 400044, Peoples R China

来源：

COMPOSITES COMMUNICATIONS | 2025年 / 55卷

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Fused deposition molding (FDM); CNT/PEI composites; Self-lubricating fillers; Friction and wear; INTERLAMINAR FRACTURE; SLIDING WEAR; DEPOSITION; PERFORMANCE; MECHANISM; BEHAVIOR;

D O I：

10.1016/j.coco.2025.102291

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Fused deposition modeling (FDM) is one of the most widely used 3D printing techniques for polymers and composites. Our previous study showed that incorporating CNT effectively improved the mechanical properties of 3D-printed CNT/PEI, while its influences on the friction and wear performance are still unclear. Therefore, in the present work, three self-lubricating fillers, i.e., graphite, graphene oxide (GO), and tungsten disulfide (WS2), were introduced into 3D-printed carbon nanotubes/polyetherimide (CNT/PEI) composites by single screw extrusion. The effects of three fillers on the friction and wear performance of the 3D-printed CNT/PEI composites were comparatively investigated. The findings reveal that incorporating CNT into 3D-printed PEI has a negligible impact on its friction coefficient, yet it markedly decreases the specific wear rate. Meanwhile, adding selflubricating fillers to the 3D-printed CNT/PEI composite notably decreases both the friction coefficient and specific wear rate. Graphite is the most effective one in lowering friction coefficient among these fillers, whereas WS2 demonstrates superior performance in improving wear resistance. Moreover, as the testing load and speed escalate, there is a pronounced increase in both the friction coefficient and the specific wear rate of the 3D- printed PEI composites. Because the frictional heat generated would soften the contact surfaces of composites, thus weakening their resistance to wear.

引用

页数：6

共 50 条

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