Effect of Graphene Oxide Modified with Organic Amine on the Aging Resistance, Rolling Loss and Wet-Skid Resistance of Solution Polymerized Styrene-Butadiene Rubber

Abstract

Graphene oxide (GO) was modified by p-phenylenediamine (PPD), aiming at improving the wet-skid resistance and reduce the rolling loss of solution polymerized styrene-butadiene rubber (SSBR). PPD with amino groups enabled GO to obtain anti-aging function. The structure of modified GO (PPD-GO) was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and Raman spectroscopy. Mechanical tests showed that the mechanical properties of SSBR before and after aging were improved by adding PPD-GO. The results of thermogravimetric-differential scanning calorimeter synchronization analysis (TGA-DSC) indicated that SSBR/PPD-GO obtained good thermo-oxidative stability. The dynamic mechanical analysis (DMA) of SSBR composites showed that the mechanical loss factor (tanδ) peak moved to high temperature with the content of PPD-GO. The tanδ values of SSBR composites showed that it had a good effect on improving the wet-skid resistance and reducing the rolling loss of SSBR by adjusting the content of PPD-GO. In particular, with the addition of 4 phr GO, SSBR was effectively improved in mechanical properties, aging resistance, wet-skid resistance and low rolling loss.

The effect of silicon dioxide nanoparticle‐covered graphene oxide on mechanical properties, thermal stability and rheological performance of thermoplastic polyurethanes

“…Figure 1a confirmed the corresponding FTIR spectra of GO, SiO 2 , TGO and TGOS particles. The FTIR spectrum of GO demonstrated OH vibration, C═O vibration, C═C stretching vibration and CO stretching vibration peaks at 3408, 1727, 1626 and 1061 cm −1 , respectively 15,16 . The FTIR spectrum of TGO showed that the peak at 1038 cm −1 is the stretching vibration of CN and the peak caused by the NH bond at 3440 cm −1 may overlap with the stretching vibration of OH 17 .…”

Integration of experimental methods and molecular dynamics simulations for a comprehensive understanding of enhancement mechanisms in graphene oxide (GO)/rubber composites

“…The temperature was controlled by the Berendsen thermostat, and the pressure was controlled by the Andersen barostat [16] . The van der Waals interactions were calculated by the Lennard-Jones function with a cutoff distance of 12.5 Å and the electrostatic C [17] , respectively. The FTIR spectrum of pure XNBR (Fig.…”