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Morphological, mechanical, and thermal characterization of electrospun three‐dimensional graphite nanoplatelets/polystyrene ultra‐fine fibril composite fabrics
Faculty
Engineering
Year:
2021
Type of Publication:
ZU Hosted
Pages:
1462-1472
Authors:
Amro Shehata Mohamed Shehata Fayed
Staff Zu Site
Abstract In Staff Site
Journal:
Polymer Composites wileyonlinelibrary.com/journal/pc
Volume:
42
Keywords :
Morphological, mechanical, , thermal characterization , electrospun three‐dimensional
Abstract:
Ultra-fine fibril composites were produced by electrospinning of a polymer solution containing polystyrene (PS)/dimethylformamide (DMF) with different concentrations of three-dimensional graphite nanoplatelets (3D-GNPs). Berry's number of PS/DMF polymer solution was extensively studied to produce minimum electrospun PS fiber diameters. Three-dimensional GNPs of different weight percentages were dispersed in the optimized PS/DMF to produce ultrafine fibril composite fabric. The electrospun average diameters decreased from 1.5 μm for PS fibers to 890 nm for 3D-GNPs/PS fibril composites, respectively, at 12 and 9.8 Berry's number. High-resolution transmission electron microscopy samples' micrographs confirm a homogenous dispersion and alignment of 3D-GNPs in PS fibril composites. Thermal and mechanical characteristics of fabrics were determined using thermogravimetric analysis, thermomechanical Analysis, and dynamic mechanical analysis (DMA). It was found that there was an increase in percentage elongation, tensile strength, thermal stability, and glass-transition temperature for 3D-GNPs PS fibril composite fabrics compared to PS fabrics. Diminishing the value of loss tangent, measured by DMA, was used as an approach to predict the maximum amount of 3D-GNPs weight percent dispersion in electrospun PS/dimethylformamide solution. One of the most important potential applications of the electrospun 3D-GNPs/PS fibril composite fabrics is in the interiors of vehicles and aerospace industries as it characterizes by its good thermal and mechanical properties as well as its low density.
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Amro Shehata Mohamed Shehata Fayed, "Modes I/II SIF of a diametrically compressed Brazilian disc having a central inclined crack with frictional surfaces", wiley, 2017
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Amro Shehata Mohamed Shehata Fayed, "Size effect of asymmetric four point bend specimen on crack propagation in ceramics", Ain Shams Journal of Mechanical Engineering, 2008
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Amro Shehata Mohamed Shehata Fayed, "Modelling of cracking sites/development in axial dovetail joints of aero-engine compressor discs", International Journal of Fatigue, 2006
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Amro Shehata Mohamed Shehata Fayed, "Notch elastic affected zone of oblique elliptical edge notches", Fourth Assiut University Int. Conf. on Mech. Eng. Advanced Tech. for Indus. Prod, 2006
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Amro Shehata Mohamed Shehata Fayed, "Cyclic crack tip deformation of short cracks emanating from elliptical oblique notches", Fourth Assiut University Int. Conf. on Mech. Eng. Advanced Tech. for Indus. Prod.,, 2006
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Department Related Publications
Mohammed Abdelmoniem Mohamed Eltaher , "Static analysis of nanobeams including surface effects by nonlocal finite element", www.springerlink.com/content/1738-494x, 2012
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Mohammed Abdelmoniem Mohamed Eltaher , "Static and stability analysis of nonlocal functionally graded nanobeams", www.elsevier.com/locate/compstruct, 2012
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Tamer Ali Abdella Sebaee, "Damage resistance and damage tolerance of dispersed CFRP laminates: Design and optimization", ScienceDirect, 2013
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Tamer Ali Abdella Sebaee, "Failure and reliability analysis of pinned-joint composite laminates: Effects of pin–hole clearance", Sagepub, 2013
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Tamer Ali Abdella Sebaee, "The effect of fiber orientation on the energy absorption capability of axially crushed composite tubes", ٍScienceDirect, 2014
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