Study of mechanical performance of polymer nanocomposites reinforced with exfoliated graphite of different mesh sizes using micro-indentation

Khammassi, Sabrine, Tarfaoui, Mostapha and Lafdi, Khalid (2021) Study of mechanical performance of polymer nanocomposites reinforced with exfoliated graphite of different mesh sizes using micro-indentation. Journal of Composite Materials, 55 (19). pp. 2617-2629. ISSN 0021-9983

[img]
Preview
Text
MANUSCRIPT-EXG-Revised _2_.pdf - Accepted Version

Download (2MB) | Preview
Official URL: https://doi.org/10.1177/0021998321993211

Abstract

The first phase of this work aims to use the right additive nano-fillers choices, such as exfoliated Graphite (ExG), increasing the mechanical, electrical, and thermal performances. In this work, we are interested in quantifying the effect particles' size on a polymer matrix's performance. For this, three sets of exfoliated polymers filled with Graphite, characterized by three particle sizes, called meshes 50, 100, and 150, were investigated. In this analysis, exfoliated Graphite reinforced polymers were subjected to indentation tests to define local mechanical properties. The sample is an epoxy 862 matrix reinforced with exfoliated graphite additives. For each specific size, the additives are mixed in percentages of 0% in the act of control, 0.5%, 4%, 8%, and 16% by weight. Matching pure polymers, polymers reinforced by exfoliated Graphite have proven to have significant improvements in local elastic properties (such as modulus, hardness, stiffness, etc.). Results showed that the reinforced epoxy's local mechanical properties are affected by the size and the percentage of nano-additives. Through the inspection of the load-displacement curve, it can be concluded that the nano-additive has a significant influence on the plastic mechanical properties of the sample. Therefore, the size of nanoparticles has significantly improved in material properties.

Item Type: Article
Uncontrolled Keywords: Polymer matrix, nanofillers, exfoliated graphite, indentation, mechanical proprieties
Subjects: F200 Materials Science
H300 Mechanical Engineering
H800 Chemical, Process and Energy Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Elena Carlaw
Date Deposited: 22 Feb 2021 12:32
Last Modified: 28 Jun 2021 14:15
URI: http://nrl.northumbria.ac.uk/id/eprint/45499

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics