Study on the Effects of the Interphase Region on the Network Properties in Polymer Carbon Nanotube Nanocomposites

Abstract

The interphase region around nanoparticles changes the percolation threshold of long and thin nanoparticles, such as carbon nanotubes (CNT) in polymer nanocomposites. In this paper, the effects of the interphase region on the percolation threshold of nanoparticles and the network fraction are studied. New percolation threshold (φP) is defined by the role of the interphase in the excluded volume of nanoparticles (Vex). Moreover, the influences of filler and interphase size on the percolation volume fraction, the fraction of nanoparticles in the network as well as the volume fraction and relative density of the filler network are investigated. The least ranges of “φP” are obtained by thin and long CNT. Similarly, a thick interphase increases the “Vex” parameter, which causes a positive role in the percolation occurrence. Also, thin CNT and a thick interphase cause the high fraction of the filler network in the nanocomposites.

A highly sensitive biosensor based on methacrylated graphene oxide-grafted polyaniline for ascorbic acid determination

“…Nanocomposites have attracted much attention due to their exceptional properties [17,[24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41]. Mechanical performance and electrical conductivity are the main characteristics that are developed with the combination of various materials into a nanocomposite [42][43][44][45][46]. Recently, conductive nanocomposites have captured the great interest in bioelectronics and biosensing fields [47].…”

Model Progress for Tensile Power of Polymer Nanocomposites Reinforced with Carbon Nanotubes by Percolating Interphase Zone and Network Aspects

“…Furthermore, the poorest strength is revealed at dense nanoparticles and reedy interphase. The slight diameter of CNT can strengthen the nanocomposites, because the small nanofiller provides the robust and huge interfacial district with the polymer chains, which significantly improve the tensile strength [52,53]. On the other hand, it is clear that a profuse interphase yields a high content of interphase in the samples, which powerfully strengthens the nanocomposites [54,55].…”

Design and Modelling of Carbon Fiber Grid Structure based Carbon/Epoxy Composites for Enhanced Microwave Absorbing Properties

“…2(a) and Fig. 2(b) [8]. The conductive network acts as waveguide walls to the absorbed EM wave, which forms standing waves and further inhibits the transmission or reflection of the incident wave.…”