Mechanical Properties of Thermoplastic and Thermoset Composites Reinforced with 3D Biaxial Warp-knitted Fabrics
- 522 Downloads
In this study, two types of thermoplastic matrices (low melting point polyethylene terephthalate (LPET) fiber and polypropylene (PP) fiber) and glass fiber/epoxy resin/multi-walled carbon nanotubes (MWCNTs) were used to fabricate the thermoplastic and thermoset composite materials with 3D biaxial warp-knitted fabrics. Thermoplastic and thermoset composites were fabricated using hot-press and resin transfer molding (RTM) methods. The fabricated samples were tested with tensile and three-point flexural tests. In thermoplastic composites, samples in the 90° direction and LPET matrix showed the best tensile and flexural properties with an improvement of 39 and 21% tensile modulus and strength, 16 and 8% flexural modulus and strength compared to the PP samples in the same direction. In thermoset composites, samples in the 90° direction and MWCNTs showed the best improvement of the flexural modulus and strength with 97 and 58% compared to the samples without MWCNTs. This improvement can most likely be attributed to an increase in interfacial adhesion due to the presence of the carbon nanotubes.
KeywordsNon-crimp fabric Thermoplastics composites Thermosets composites Carbon nanotubes Mechanical properties
The authors wish to acknowledge the Research fund of OMU (Project Numbers: (PYO.MUH.1904.16.004, PYO.MUH.1904.16.005, PYO.MUH.1901.16.001) for funding this study.
- 2.Wiegand, N., Mäder, E.: Commingled yarn spinning for thermoplastic/glass fiber composites. Fibers. 26, 1–15 (2017)Google Scholar
- 3.Mankodi, H., Patel, P.: Study the effect of commingling parameters on glass/polypropylene hybrid yarns properties. AUTEX Research Journal. 9, 70–73 (2009)Google Scholar