Effect of Chain Length of Amine and Nature and Loading of Clay on Styrene-Butadiene Rubber-Clay Nanocomposites

Abstract

Polymer nanocomposite is one of the highly discussed research topics in recent time. In this paper, we have reported the preparation and the properties of different nanoclays based on sodium montmorillonite, bentonite and potassium montmorillonite and organic amines of varying chain lengths, and Styrene Butadiene Rubber (SBR)-clay nanocomposites. The clays and the rubber nanocomposites have been characterized with the help of Fourier Transform Infrared Spectroscopy (FTIR), Transmission Electron Microscopy (TEM), Scanning Electron Microscopy (SEM), Differential Scanning Calorimetry (DSC), and Thermogravimetric Analysis (TGA). X-ray results suggest that the intergallery distance is increased by incorporation of various amines. There is a great improvement in mechanical properties like tensile strength, elongation at break, modulus, work to break, and hysteresis on incorporation of nanoclay in SBR. TEM photographs show exfoliation of the clays in rubber to 5–10 nm range. The X-ray diffraction peak observed in the range of 3°– 10° for the control and the modified clays also disappears in rubber nanocomposites. Increasing chain length of clay modifiers and loading and nature of clays affect the mechanical and thermal properties significantly.

Structural Arrest and Thermodynamic Scaling in Filler-Reinforced Polymers

“…[1][2][3] Development of novel fillers such as carbon nanotubes, 4,5 nanoclay, 6,7 graphene, 8,9 silica, 10,11 and diamond 12 nanoparticles has led to increased interest in polymer reinforcement. The effect of fillers on the mechanical response is very strain dependent.…”

Effect of organoclay reinforcement on the curing characteristics and technological properties of styrene-butadiene rubber

“…Quite a number of publications exist in the field of SBR/clay nanocomposites and these are briefly summarized below. SBR/clay nanocomposites have been prepared by the solutionblending technique by Ganter et al [12] and Sadhu and Bhowmick [13][14][15]. SBR latex/clay nanocomposites were prepared by Zhang et al [16], Wang et al [17,18], and Wu et al [19] by acid coagulation of the mixture formed by mixing SBR latex and clay/water dispersion.…”

Synthesis and characterization of in situ sodium‐activated and organomodified bentonite clay/styrene–butadiene rubber nanocomposites by a latex blending technique

“…It has been also reported that, when one considers a straight-chain organo-amine, the best result is achieved with octadecyl amine (ODA). 29 Thus, in this study, we used ODA as the organic intercalate.…”