Tribological and mechanical properties of polyamide-11/halloysite nanotube nanocomposites

Loading...
Thumbnail Image

Authors

Sahnoune, Mohamed
Kaci, Mustapha
Taguet, Aurélie
Delbé, Karl
Mouffok, Samir
Abdi, Said
Lopez-Cuesta, José-Marie
Focke, Walter Wilhelm

Journal Title

Journal ISSN

Volume Title

Publisher

De Gruyter

Abstract

This article reports some morphological, tribological, and mechanical data on polyamide-11(PA11)/halloysite nanotube (HNT) nanocomposites prepared by melt-compounding. HNTs extracted from the Djebel Debbagh deposit in Algeria were incorporated into the polymer at 1, 3, and 5 wt%. For comparison, commercial HNTs were also used under the same processing conditions. Scanning electron microscopy showed that both HNTs were homogeneously dispersed in the PA11 matrix, despite the presence of few aggregates, in particular at higher filler contents. The tribological properties were significantly improved, resulting in a decrease in the friction coefficient and the wear rate characteristics due to the lubricating effect of HNTs. This is consistent with optical profilometry data, which evidenced the impact of both types of HNTs on the surface topography of the nanocomposite samples, in which the main wear process was plastic deformation. Furthermore, Young’s modulus and tensile strength were observed to increase with the filler content, but to the detriment of elongation at break and impact strength. Regarding the whole data, the raw Algerian halloysite led to interesting results in PA11 nanocomposites, thus revealing its potential in polymer engineering nanotechnology.

Description

Keywords

Mechanical properties, Optical profilometry, Polyamide-11, Tribology, Tribological properties, Processing condition, Friction coefficients, Elongation at break, Yarn, Wear of materials, Tensile strength, Surface topography, Scanning electron microscopy (SEM), Profilometry, Nanotubes, Nanocomposites, Kaolinite, Impact strength, Friction, Fillers, Elastic moduli, Halloysite nanotube (HNT)

Sustainable Development Goals

Citation

Sahnoune, M., Kaci, M., Taguet, A. et al. 2019, 'Tribological and mechanical properties of polyamide-11/halloysite nanotube nanocomposites', Journal of Polymer Engineering, vol. 39, no. 1, pp. 25-34.