Seenaa I. Hussein1 · Alaa M. Abd‑Elnaiem2 · Tesleem B. Asafa3 · Harith I. Jaafar1
المؤلفون بالإنجليزي
Seenaa I. Hussein1 · Alaa M. Abd‑Elnaiem2 · Tesleem B. Asafa3 · Harith I. Jaafar1
الملخص الانجليزي
Applications of polymer-based nanocomposites continue to rise because of their special properties such as lightweight, low
cost, and durability. Among the most important applications is the thermal management of high density electronics which
requires effective dissipation of internally generated heat. This paper presents our experimental results on the influence
of graphene, multi-walled carbon nanotubes (MWCNTs) and chopped carbon fibers on wear resistance, hardness, impact
strength and thermal conductivity of epoxy resin composites. We observed that, within the range of the experimental data
(epoxy resin + 1, 3, 5 wt% of graphene or 1, 3, 5 wt% MWCNT or 10, 30, 50 wt% carbon fibers), graphene-enhanced wear
resistance of the nanocomposites by 75% compared to 50% and 38% obtained for MWCNT and carbon fiber composite,
respectively. The impact resistance of graphene nanocomposite rose by 26% (from 7.3 to 9.2 J/m2) while that of MWCNT
nanocomposite was improved by 14% (from 7.3 to 8.2 J/m2). The thermal conductivity increased 3.6-fold for the graphene
nanocomposite compared to threefold for MWCNT nanocomposite and a meager 0.63-fold for carbon fiber composite. These
enhancements in mechanical and thermal properties are generally linear within the experimental limits. The huge increase
in thermal conductivity, especially for the graphene and MWCNT nanocomposites makes the composites readily applicable
as high conductive materials for use as heat spreaders and thermal pads.
تاريخ النشر
07/07/2018
الناشر
Springer-Verlag GmbH Germany, part of Springer Nature 2018
سيناء ابراهيم حسين | Seenaa Ibraheim Hussein | 5424