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Title: Making of graphene fibre composites using pressurised gyration
Author: Amir, Amalina
ISNI:       0000 0004 7970 6216
Awarding Body: UCL (University College London)
Current Institution: University College London (University of London)
Date of Award: 2019
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This work is motivated by the goal to open up new markets and even replace existing technologies or materials using graphene as a disruptive technology. Only when graphene is used both as an improvement to existing material and in a transformational capacity, its true potential can be realised. Therefore, this project seeks to develop graphene fibres in order to utilise the advantages over carbon fibres for application in fibre-based devices including high strength, electrical and thermal conductivities, low cost, lightweight, and ease of functionalization. A simple and effective process combining pressure and centrifugal spinning has been developed and used to produce composite fibres consisting of graphene nanoplatelets. Thermoplastic polyurethane, phenolic resin and polyvinylpyrrolidone polymers were used as matrices. Precursor of carbon, polyacrylonitrile and graphene oxide were used in combination to study the effect of performing graphene fibre after pyrolysis. Processing parameters such as rotation speed, pressure and polymer concentration had a marked influence on the composite fibre diameter. Focused ion beam milling and etching verified the effective incorporation of the graphene nanoplatelets in the composite fibres. Morphological, rheological, physicochemical and thermal properties of the composite fibres were evaluated to uncover possible applications areas of these products.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available