Journal
COMPOSITE STRUCTURES
Volume 266, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2021.113847
Keywords
Composite material; Polyether-ether-ketone; Basalt fiber; Tribological properties
Categories
Funding
- Natural Science Foundation of Zhejiang Province [LY20E050008, LQ20A020003]
- Project of Key Laboratory of Urban Rail Transit Intelligent Operation and Maintenance Technology & Equipment of Zhejiang Province [ZSDRTZZ2020003]
- SelfTopic Fund of Zhejiang Normal University [2020ZS04]
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Short basalt fiber reinforced PEEK composites exhibit increased surface roughness, decreased friction coefficient, and the lowest specific wear rate, along with good ultimate tensile strength and elongation at break. Thermal and rheological behaviors of the composites were also investigated to understand the effect of basalt fiber on the crystallization performance and flow abilities of PEEK composites.
As having high heat resistance, excellent mechanical and tribological properties, Polyether-Ether-Ketone (PEEK) is widely used in aerospace, rail transit, etc. The short basalt fiber (BF) reinforced PEEK composites were fabricated to further improve the mechanical and tribological properties. With increasing BF content, the surface roughness of composites increases, while the friction coefficient decreases gradually, attributing to a certain lubricating friction film formed on the part surface. With a BF content of 25 wt%, the specific wear rate of the composites reaches the lowest value of 5.28 ? 10?7m3/N?m, which is an order of magnitude lower than that of neat PEEK. Simultaneously, good ultimate tensile strength and the elongation at break were achieved, reaching 150 MPa and 31% respectively. Thermal and rheological behaviors of the composites were also investigated through differential scanning calorimetric (DSC) and rotating rheological testing to understand the effect of BF on the crystallization performance and flow abilities of PEEK composites.
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