Effect of the Calcium Carbonate Properties on the Mechanical Behaviour of the Superficial Layer of PVC Synthetic Leather

The main objective of this study was to study the relation between carbonate calcium and mechanical properties of PVC synthetic leather. Filler is an additive that is used for plastic material essentially to reduce costs. Although, filler is primarily used to make PVC synthetic leather cheaper, they also influence a variety of parameters during production and technical properties of the final product. Polyvinylchloride calcium carbonate composites (PVC/CaCO3) with different particle size and types were prepared. The mechanical tests showed that the addition of the CaCO3 fillers could have an effect on the mechanical properties, the tear resistance, the break strength and the elongation at break of the PVC synthetic leather increased with decreasing CaCO3 particle size, which was attributed to increased interfacial contact area and enhanced interfacial adhesion between CaCO3 particles and PVC matrices.