Tribological behaviors of binary and ternary epoxy composites functionalized with different microcapsules and reinforced by short carbon fibers

被引：43
作者：
Khun, N. W. [1 ]
Zhang, H. [1 ]
Sun, D. W. [1 ]
Yang, J. L. [1 ]
机构：
[1] Nanyang Technol Univ, Sch Mech & Aerosp Engn, 50 Nanyang Ave, Singapore 639798, Singapore
来源：
WEAR | 2016年 / 350-351卷
关键词：
Binary and ternary epoxy composites; Microcapsules; Hardness; Friction; Wear; WEAR BEHAVIOR; SLIDING WEAR; FRICTION; NANOTUBES; ROUGHNESS; MICROENCAPSULATION; STRENGTH; COATINGS; FILLERS;
D O I：
10.1016/j.wear.2016.01.007
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The effects of compositional modifications on the sliding friction and wear against bearing steel were investigated for newly-developed binary and ternary epoxy composites. Some of the new materials included hexamethylene diisocyanate (HDI) filled microcapsules and wax filled microcapsules, and others used HDI filled microcapsules, wax filled microcapsules and short carbon fibers (SCFs) at different ratios. The hardness of the binary and ternary epoxy composites decreased with increased content of wax filled microcapsules. The wax filled microcapsules were larger than the HDI filled microcapsules. Due to the rigidity of the SCFs, the hardness of the epoxy composites with 8 wt% SCFs was higher than that of the composites without SCFs. Pin-on-disc, sliding friction and wear performance for the binary and ternary epoxy composites tested against a 100Cr6 steel ball, were improved as the content of wax filled microcapsules increased. This was due to their effective lubricating effects. It was proposed that the addition of 8 wt% SCFs, which lowered the friction and wear of the epoxy composites, promoted solid lubrication by free-rolling SCFs. (C) 2016 Elsevier B.V. All rights reserved.
引用
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页码：89 / 98
页数：10
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