Effect of Multi-Wall Carbon Nanotubes on the Properties of Natural Rubber Nanocomposites

Abstract

Multi-walled carbon nanotubes (MWNTs) were used to prepare epoxidised natural rubber (ENR) nanocomposites. Our attempt to achieve nanostructures in MWNTs/ENR nanocomposites were formed by incorporating carbon nanotubes in a polymeric solution. Using this technique, nanotubes can be dispersed homogeneously in the ENR matrix with an attempt to increase the mechanical properties of these nanocomposites. The properties of the nanocomposites such as volume resistivity, tensile strength and tensile modulus were studied. Mechanical test results show an increase in the initial modulus for up to 14 times in relation to pure ENR. In addition to mechanical testing, the dispersion state of the MWNTs into ENR was studied by field emission electron microscopy (FESEM) and atomic force microscope (AFM) in order to understand the morphology of the resulting system. According to the present study, application of the physical and mechanical properties of carbon nanotubes to ENR can result in rubber products which have improved mechanical, physical and chemical properties.