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090			_aB-21064
245	1	0	_aCharacterizing biaxially stretched polypropylene/graphene nanoplatelet composites
490	0		_vFrontiers in Materials, https://doi.org/10.3389/fmats.2021.687282, 2021
520	3		_aIn 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 percent)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.
650	1	4	_aPOLYMER COMPOSITES
650	1	4	_aGRAPHENE NANOPLATELET
650	1	4	_aBI-AXIAL STRETCHING
650	1	4	_aMECHANICAL PROPERTIES
650	1	4	_aTHERMAL PROPERTIES
650	1	4	_aELECTRICAL PROPERTIES
700	1	2	_aMayoral, B.
700	1	2	_aMenary, G.
700	1	2	_aMartin, P.
700	1	2	_aGarrett, G.
700	1	2	_aMillar, B.
700	1	2	_aDouglas, P.
700	1	2	_aSun, D.
856	4	0	_uhttps://drive.google.com/open?id=1Bz9OlpEB1WgIgQ3InEBgHu96jmhAPCm0&usp=drive_copy _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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