Characterization of mechanical properties of epoxy/nanohybrid composites by nanoindentation

Nanotechnology Reviews

article

Huiying Zhang¹  Xiang Li²  Wenjie Qian¹  Jianguo Zhu¹  Beibei Chen²  Jin Yang²  Yu Xia¹ 

[1] Faculty of Civil Engineering and Mechanics, Institute of Structure Health Monitoring, Jiangsu University;School of Materials Science and Engineering, Institute for Advanced Materials, Jiangsu University

关键词: polymer-matrix composites (PMCs);    nanohybrid;    nanoindentation;    mechanical properties;   

DOI  :  10.1515/ntrev-2020-0003

学科分类：社会科学、人文和艺术（综合）

来源: De Gruyter

【 摘 要 】

The carbon nanofibers and molybdenum disulfide (CNF-MoS 2 ) nanohybrid material was fabricated and incorporated into epoxy resin to form the nanocomposite coating. Firstly, microstructure observation shows that each CNF was uniformly wrapped up with MoS 2 nanosheets, and the nanohybrids were well dispersed in the coating. Then, nanoindentation experiments were carried out to explore the effect of the CNF-MoS 2 nanohybrids on the mechanical properties of the epoxy resin coating. The results demonstrate that elastic modulus, hardness and creep deformation resistance of the CNF-MoS 2 epoxy resin coating are greatly increased in comparison with both pure epoxy resin and MoS 2 epoxy resin coatings. Finally, the underlying mechanism of high-performance tribological behavior of the nanocomposites is analyzed accordingly. It can be concluded that the wrapped structure with MoS 2 sheets growing on the surface of CNF increases the contact area and reduces the friction coefficient of the composite coating, while the wear resistance of the nanocomposite coating is also greatly improved due to the superior high hardness of CNF.

【 授权许可】

CC BY