Dynamic mechanical analysis of adhesion between poly(vinyl chloride) and nitrile rubber

The degree of adhesion between poly(vinyl chloride) and nitrile rubber sheets depends on the contact time and temperature. Good adhesion is attributed to the compatibility of the two polymers which allows interdiffusion of the chains across the interface. The dynamic mechanical properties of the composites are found to vary according to the moulding conditions. The changes in the storage modulus and the loss tangent values of the composites with contact time and temperature are explained on the basis of the extent of adhesion and the molecular dynamics of the chains at the interface.