Improving the Mechanical Properties of Cf/ PEEK Composite by Implanting Functionalized Multi-Wall Carbon Nanopaper
- PDF / 5,181,244 Bytes
- 12 Pages / 439.37 x 666.142 pts Page_size
- 28 Downloads / 156 Views
Improving the Mechanical Properties of Cf/ PEEK Composite by Implanting Functionalized Multi-Wall Carbon Nanopaper Binbin Li 1 & Xingbang Wang 1,2 & Bangxiao Mao 1 & Tao He 1 & Haiquan Huang 1 Received: 2 March 2020 / Accepted: 25 May 2020/ # Springer Nature B.V. 2020
Abstract
The multi-walled carbon nanotubes were prepared into nanopaper with three-dimensional network structure by ultrasonic dispersion technology and suction filtration, and then implanted into Cf / PEEK composite materials by mold pressing process. The microstructure, tensile strength, flexural strength and abrasion resistance of the composites were tested. The influence of the nanopaper on the properties of composites were discussed and analyzed. After implanting a well- dispersed PANI-functionalized nanopaper layer, the tensile strength and bending strength of the 0.1 mm nanopaper composite increased by 20.6% and 26.6% respectively, which meant that high load is needed to cause the composite to break. There are pores in the interface of 0.2 mm nanopaper composite after hot pressing, and the improvement of mechanical properties is not significant. Compared with the pure Cf / PEEK composite, the friction coefficient of 0.1 mm nanopaper composite is reduced by 0.05, and the wear rate is reduced by 26%. This should be ascribed to that the self-lubricating property of MWCNTs. The threedimensional network structure of nanopaper with good thermal conductivity can disperse the heat generated in the friction process and reduce the contact area between the Si3N4 ball and the resin matrix. Keywords Multi-walled carbon nanotubes . Nanopaper . Cf / PEEK composite . Threedimensional network structure . Frictional wear property
* Binbin Li [email protected]
1
International Laboratory for Insulation and Energy Efficiency Materials, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, People’s Republic of China
2
Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, People’s Republic of China
Applied Composite Materials
1 Introduction Fiber-reinforced polymer matrix composites exhibit prominent properties (e.g., light weight, high strength, as well as high corrosion resistance). Polyetheretherketone (PEEK) refers to a high performance thermoplastic resin that display remarkable heat resistance, high wear resistance and superior mechanical properties. For its significant characteristics, it has become one of the special engineering plastics [1–5] most extensively employed in aerospace, automotive, medical equipment and electronic appliances, in which prominent mechanical properties are required. Meantime, carbon nanotubes, a novel type of reinforcement material, have aroused huge attention from materials science. Numerous researchers have been committed to filling nanoparticles to enhance the mechanical properties and other physical properties of polymer-based composites. Since its discovery, multi-
Data Loading...
