Intra- and Interphase Crosslinking in Composites of Nitrile–Butadiene Rubber with Polyvinyl Chloride and Their Ozone Resistance

摘要

The ratio of the number of intra- and interphase crosslinks in the mixtures of nitrile–butadiene rubber with different content of acrylonitrile units and polyvinyl chloride was estimated from the contribution of each phase to the tensile modulus. It is shown that the number of chemical bonds between the components has a decisive effect on ozone-protective effect by a thermoplastic. The degree of crosslinking of rubber does not matter.