Show simple item record

AuthorMayoral, B.
AuthorMenary, G.
AuthorMartin, P.
AuthorGarrett, G.
AuthorMillar, B.
AuthorDouglas, P.
AuthorKhanam, N.
AuthorAlMaadeed, M.A.
AuthorOuederni, M.
AuthorHamilton, A.
AuthorSun, D.
Available date2023-06-08T05:52:23Z
Publication Date2021
Publication NameFrontiers in Materials
ResourceScopus
ISSN22968016
URIhttp://dx.doi.org/10.3389/fmats.2021.687282
URIhttp://hdl.handle.net/10576/44064
AbstractIn this work, polypropylene (PP) nanocomposites containing different weight concentration of graphene nanoplatelets (GNP) were prepared by melt-mixing using an industrial-scale, co-rotating, intermeshing, twin-screw extruder. The materials were then compression moulded into sheets, and biaxially stretched at different stretching ratios (SRs) below the PP melting temperature. The effects of GNP content and biaxial stretching on the bulk properties of unfilled PP and PP/GNP nanocomposites have been investigated in details. Results show that the addition of GNP (>5wt%) can lead to electrically conductive composites due to the formation of percolation network. The GNP have led to increased polymer crystallinity and enhanced materials stiffness and strength. Biaxial stretching process further enhances the materials mechanical properties but has slightly decreased the composites electrical conductivity. The PP/GNP nanocomposites were also processed into 3D demonstrator parts using vacuum forming, and the properties of which were comparable with biaxially stretched composites.
SponsorThe authors wish to thank the QNRF for research funding through NPRP award (NPRP5-039-2-014) (NRF) Qatar.The authors would also like to acknowledge the Engineering and Physical Science Research Council (EP/M020851/1) for funding support.
Languageen
PublisherFrontiers Media S.A.
SubjectBi-axial stretching
electrical properties
graphene nanoplatelet
mechanical properties
polymer composites
thermal properties
TitleCharacterizing Biaxially Stretched Polypropylene / Graphene Nanoplatelet Composites
TypeArticle
Volume Number8
dc.accessType Open Access


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record