Abstract
To meet the maximum potential of the mechanical properties of carbon fiber reinforced plastics (CFRP), stress transfer between the carbon fibers through the polymer matrix must be improved. A recent promising approach reportedly used reinforcing particles as fillers dispersed in the resin. Carbon based fillers are an excellent candidate for such reinforcing particles due to their intrinsically high mechanical properties, structure and chemical nature similar to carbon fiber and high aspect ratio. They have shown great potential in increasing the strength, elastic modulus and other mechanical properties of interest of CFRPs. However, a percolation threshold of ~1% of the carbon-based particle concentration in the base resin has generally been reported, beyond which the mechanical properties deteriorate due to particle agglomeration. As a result, the potential for further increase of the mechanical properties of CFRPs with carbon-based fillers is limited. We report a significant increase in the strength and elastic modulus of CFRPs, achieved with a novel reinforced thermoset resin that contains high loadings of epoxy-reacted fluorographene (ERFG) fillers. We found that the improvement in mechanical performance of CFRPs was correlated with increase in ERFG loading in the resin. Using a novel thermoset resin containing 10 wt% ERFG filler, CFRPs fabricated by wet layup technique with twill weaves showed a 19.6% and 17.7% increase in the elastic modulus and tensile strength respectively. In addition, because of graphene’s high thermal conductivity and high aspect ratio, the novel resin enhanced CFRPs possessed 59.3% higher through-plane thermal conductivity and an 81-fold reduction in the hydrogen permeability. The results of this study demonstrate that high loadings of functionalized particles dispersed in the resin is a viable path towards fabrication of improved, high-performance CFRP parts and systems.
Reference48 articles.
1. C. Soutis, Fibre reinforced composites in aircraft construction. Progress in Aerospace Sciences, vol. 41, no. 2, pp. 143-151, 2005/02/01/ 2005
2. Carbon Fiber Market by Raw Material (PAN, Pitch, Rayon), Fiber Type (Virgin, Recycled), Product Type, Modulus, Application (Composite, Non-composite), End-use Industry (A & D, Automotive, Wind Energy), and Region - Global Forecast to 2029. MARKETSANDMARKETS2019
3. Y. Luo, Y. Zhao, Y. Duan, and S. Du, Surface and wettability property analysis of CCF300 carbon fibers with different sizing or without sizing. Materials & Design, vol. 32, no. 2, pp. 941-946, 2011/02/01/ 2011
4. T. Sun, M. Li, S. Zhou, M. Liang, Y. Chen, and H. Zou, Multi-scale structure construction of carbon fiber surface by electrophoretic deposition and electropolymerization to enhance the interfacial strength of epoxy resin composite.s Applied Surface Science, vol. 499, p. 143929, 2020/01/01/ 2020
5. C. Wang, J. Li, S. Sun, X. Li, F. Zhao, B. Jiang, and Y. Huang, Electrophoretic deposition of graphene oxide on continuous carbon fibers for reinforcement of both tensile and interfacial strength. Composites Science and Technology, vol. 135, pp. 46-53, 2016/10/27/ 2016