Paper number 982
|MECHANICAL PROPERTIES OF GLASS FIBRE-PET COMPOSITES BASED ON WEFT KNITTED PREFORMS|
G. Bogoeva-Gaceva1, G. Demboski1, I. Lacik2
1Faculty of Technology & Metallurgy, R. Boskovic 16, Skopje, Macedonia
2Polymer Institute, Slovak Academy of Sciences, Dubravska cesta 9, Bratislava, Slovak Republic
|Summary||The paper investigated influence of: hybrid yarn count, PET fibre characteristics and preform textile structure on weft knitted glass/PET composite mechanical properties. Weft knitted preforms were processed on flat bed knitting machine by simultaneously knitting PET and glass yarns. It was shown that composites from finer hybrid yarn provide higher mechanical properties and lesser variation of results. Composite from unsized undrawn PET fibres with lower crystallinity exhibits 30% higher mechanical properties, as compared to drawn/sized PET fibres, as a result of improved fibre/matrix bonding. Weft knitted preform structure could influence the composite's mechanical properties.
||Keywords|| fibre reinforced composites, glass fibre, DMTA, knitted fabric.
Theme : Textiles ; Preform Processing and Testing
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