Effect of Rubber–Filler Interaction on Transport of Aromatic Liquids through High Density Polyethylene/Ethylene Propylene Diene Terpolymer Rubber Blends

Abstract

The sorption and transport of four aromatic hydrocarbons through dynamically vulcanized high density polyethylene/ethylene propylene diene terpolymer rubber blends filled with carbon black and that filled with silica at the same loading have been investigated in the temperature range of 28–58 °C by an equilibrium swelling technique . Blends loaded with high abrasion furnace (HAF) black and those with silica of same loading have been used. The silica-incorporated blends sorbed a higher amount of aromatic solvents compared with the HAF filled blends. This has been explained in terms of the differences in the interaction between the filler particles and the blend components. The swelling coefficient, diffusion coefficient, and molar mass between cross-links have been computed to complement the experimental observations.

Enhanced understanding of organic solvent transportation in NR-NBR blend reinforced with ferrite nanoparticles: A Comprehensive Investigation

“…The cross-link density values exhibit a continuous increase as the filler content increases, indicating that the incorporation of filler particles enhances the strength of the polymer matrix, thereby enhancing the toughness of the material. A greater degree of crosslink density indicates increased network constraint, resulting in a decrease in swelling caused by the inclusion of filler [39]. Furthermore, it is apparent that in cases where the system exhibits high cross-linking, the mobility of the polymer chain is significantly restricted, resulting in a delay in solvent penetration.…”