Experimental investigation and optimization of compression moulding parameters for MWCNT/glass/Kevlar/epoxy composites on mechanical and tribological properties

Hanumantharaya Rangaswamy, Harsha H. M, Manjunath Patel Gowdru Chandrashekarappa, Danil Yurievich Pimenov, Khaled Giasin, Szymon Wojciechowski

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    Abstract

    The mechanical properties of hybrid composites are largely influenced by the reinforcing fibres, nanofillers, matrix materials and fabrication methods. Multi-wall carbon nanotubes (MWCNTs) fillers reinforced to E-glass/Kevlar/epoxy composites (GKEC) are best suited for structural applications. The present study investigates the effect of adding different amounts of MWCNTs fillers (0.3%, 0.6%, and 0.9% wt) to hybrid neat (E-glass, Kevlar, epoxy) composites on the mechanical properties. Strength (tensile and bending) and hardness properties of the developed composites fabricated using compression moulding technique were evaluated. The effect of compression pressure, mould temperature and the time duration of applied pressure on hybrid (0.6MWCNT-GKEC) were also investigated. The compression pressure had the maximum effect on the tensile and bending strength of the composite, followed by mould temperature and pressure duration. The optimized compression moulding conditions resulted in 181.2 MPa of tensile strength, 143.3 MPa of bending strength and 22.8 HV. The wear rate of hybrid composites is less than that found in neat GKEC composites and showed fewer wear debris, which indicate their exists a smooth surface on worn surface morphologies.
    Original languageEnglish
    Pages (from-to)327-341
    Number of pages15
    JournalJournal of Materials Research and Technology
    Volume15
    Early online date17 Aug 2021
    DOIs
    Publication statusPublished - 1 Nov 2021

    Keywords

    • compression moulding
    • MWCNTs
    • tribology
    • mechanical properties

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