The effect of boron nitride on the properties of rubber compounds

Abstract

The work is devoted to research of vulcanization characteristics of mixtures and revealing of features of change of technological, dynamic and physical-mechanical properties of elastomers on the basis of isoprene rubber filled with carbon black N330 and boron nitride (BN). It has been established that with a gradual increase in the concentration of the inert filler BN a decrease in the curing rate by 33% and the density of the polymer cross-linking by 26% is observed, as well as an increase in the curing start time by almost 300% and the optimal curing time by 200%. At the same time, there is a 26% decrease in the "Payne effect", a 50% increase in the relative elongation at rupture and a 30% decrease in the tensile strength.