Effect of 3-Mercaptopropyltriethoxysilane Modified Illite on the Reinforcement of SBR

Abstract

To achieve the sustainable development of the rubber industry, the substitute of carbon black, the most widely used but non-renewable filler produced from petroleum, has been considered one of the most effective ways. The naturally occurring illite with higher aspect ratio can be easily obtained in large amounts at lower cost and with lower energy consumption. Therefore, the expansion of its application in advanced materials is of great significance. To explore their potential use as an additive for reinforcing rubber, styrene butadiene rubber (SBR) composites with illites of different size with and without 3-mercaptopropyltriethoxysilane (KH580) modification were studied. It was found that the modification of illite by KH580 increases the K-illite/SBR interaction, and thus improves the dispersion of K-illite in the SBR matrix. The better dispersion of smaller size K-illite with stronger interfacial interaction improves the mechanical properties of SBR remarkably, by an increment of about nine times the tensile strength and more than ten times the modulus. These results demonstrate, except for the evident effect of particle size, the great importance of filler–rubber interaction on the performance of SBR composites. This may be of great significance for the potential wide use of the abundant naturally occurring illite as substitute filler for the rubber industry.

Studying the Physical and Chemical Properties of Polydimethylsiloxane Matrix Reinforced by Nanostructured TiO2 Supported on Mesoporous Silica

“…As presented in Table 1 , the values of ∆Cp n for TiO 2 /MCM/PDMS composites are all lower than those for pristine PDMS. This reduction seems to be related to the polymer–adsorbent interfacial interactions that create an immobilized polymer layer on the surface of the adsorbent [ 27 , 46 ].…”

“…The glass transition temperatures (T g ) were measured for all samples during the last heating cycle. The normalized specific heat capacity (∆Cp n ) is calculated as follows [ 27 ]: where ∆Cp is the change in the specific heat capacity during the glass transition and x is the mass fraction of the adsorbent.…”

Influence of Illite and Its Amine Modifications on the Self-Adhesive Properties of Silicone Pressure-Sensitive Adhesives

“…Its crystal structure comprises two silicon-oxygen tetrahedrons fused to an edge-shared aluminum−oxygen octahedron. Illite exhibits moderate cation exchange capacity, large specific surface area, and low production cost; currently, the world has huge reserves [ 12 ]. The distinction between the different types of illite lies mainly in the location of the mining location.…”