Effect of aluminium particles on mechanical and morphological properties of epoxy nanocomposites
Bumper is a front or rear part of automobiles. It is designed and shaped to be impact absorbing and protecting automobiles from damage in low impact collisions. Initially, they were made from heavy steels, increasing the weight of automobiles and fuel consumption. Also, high impacts of steel bumpers...
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Published in | Acta Periodica Technologica Vol. 2017; no. 48; pp. 25 - 38 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Faculty of Technology, Novi Sad
2017
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Subjects | |
Online Access | Get full text |
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Summary: | Bumper is a front or rear part of automobiles. It is designed and shaped to
be impact absorbing and protecting automobiles from damage in low impact
collisions. Initially, they were made from heavy steels, increasing the
weight of automobiles and fuel consumption. Also, high impacts of steel
bumpers on pedestrians during accidental collision cause fatalities and or
disabilities. An effort to enhance fuel efficiency, safety, freedom of design
and shape detailing, heavy alloys for automobile applications are now being
replaced with polymeric composites. Aluminium micro particles and
nanoparticles were prepared from aluminium cans through sand casting, lathe
machine spinning, and ball milling techniques. Both types of aluminium
particles were incorporated into a mixture of diglycidyl ether of bisphenol A
(DGEBA, epoxy resin) cured with amine base hardener (ABH). Phases of the
epoxy polymer and composites were identified using Xray Diffraction (XRD).
Spatial arrangement of the phases within the matrix and their elemental
composition were examined using Scanning Electron Microscope with attached
energy dispersive X-ray spectroscopy (SEM/EDX). Tensile, impact and micro
hardness tests were conducted on the prepared epoxy/aluminium composites.
Results of the XRD showed the presence of aluminium compounds/phases due to
chemical reactions between aluminium particles and DGEBA/ABH system. SEM
confirmed a homogeneous distribution of the phases within the epoxy matrix,
and that there is a strong adhesion between the epoxy matrix and aluminium
particles. Correlation between the mechanical properties of the prepared
nanocomposite and the procured bumper materials exhibited a fair suitability
of the prepared nanocomposites for automobile applications.
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ISSN: | 1450-7188 2406-095X |
DOI: | 10.2298/APT1748025B |