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Article

Tribo-Mechanical Characterization of Carbon Fiber-Reinforced Cyanate Ester Resins Modified With Fillers

1
School of Engineering, Institute for Materials and Processes, The University of Edinburgh, Robert Stevenson Road, Scotland EH9 3FB, UK
2
Manufacturing Department, Cranfield University, Bedfordshire MK43 0AL, UK
3
Technische Universität Dresden, Institut für Leichtbau und Kunststofftechnik, 01062 Dresden, Germany
*
Author to whom correspondence should be addressed.
Polymers 2020, 12(8), 1725; https://doi.org/10.3390/polym12081725
Received: 30 June 2020 / Revised: 23 July 2020 / Accepted: 30 July 2020 / Published: 31 July 2020
(This article belongs to the Special Issue Reinforced Polymer Composites II)
High-performance polymer composites are being increasingly favored for structural applications. For this purpose, efforts are being focused on exploring the potential of high-performance thermoplastics and thermosets. Cyanate ester (CE) resin is a special thermoset that can be used at up to 400 °C without any considerable degradation; however, its tribological properties are not at the adequate level. Hence, it is needed to use this polymer in composite form with the fibrous/particulate reinforcement to impart better tribological properties and mechanical strength via a strong fiber–matrix interface. Carbon fiber/fabrics are at the forefront as reinforcement for specialty polymers. The tribological and tensile properties of cyanate ester (CE) composites-filled graphite, polytetrafluoroethylene (PTFE), and MoS2 micron-sized fillers reinforced with carbon fibers (CF) are investigated experimentally in a block-on-ring setup at 100 N, for 10 h, and with a sliding distance of approximately 10,000 m, against a hardened polished 100Cr6 steel shaft and diamond-like-coated (DLC) 100Cr6 steel shaft. The tribological properties of the composites including the coefficient of friction and specific wear rate are enhanced especially with the incorporation of graphite fillers. The friction coefficient and wear rate of the graphite-based composite was decreased significantly at 5 wt.% of graphite concentration. Further, at the same concentration, the graphite-based composite showed superior tensile properties as compared to the reference system owing to better dispersion and adhesion between the fibers and matrix. Tensile tests are performed to characterize the fiber–matrix interfacial adhesion and other strength properties. View Full-Text
Keywords: cyanate ester; tribology; carbon fibers; mechanical properties; fillers cyanate ester; tribology; carbon fibers; mechanical properties; fillers
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MDPI and ACS Style

Bajpai, A.; Saxena, P.; Kunze, K. Tribo-Mechanical Characterization of Carbon Fiber-Reinforced Cyanate Ester Resins Modified With Fillers. Polymers 2020, 12, 1725. https://doi.org/10.3390/polym12081725

AMA Style

Bajpai A, Saxena P, Kunze K. Tribo-Mechanical Characterization of Carbon Fiber-Reinforced Cyanate Ester Resins Modified With Fillers. Polymers. 2020; 12(8):1725. https://doi.org/10.3390/polym12081725

Chicago/Turabian Style

Bajpai, Ankur, Prateek Saxena, and Klaus Kunze. 2020. "Tribo-Mechanical Characterization of Carbon Fiber-Reinforced Cyanate Ester Resins Modified With Fillers" Polymers 12, no. 8: 1725. https://doi.org/10.3390/polym12081725

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