The effect of the manufacturing parameters on the surface hardness and shrinkage of polyurethane integral skin foam products

Abstract

The effect of the manufacturing parameters on the surface hardness and shrinkage of polyurethane integral skin foam products has been investigated. Three production parameters were examined in details with the Taguchi method of experimental design, and the connection between these factors and the surface hardness were estimated by regression analysis. Furthermore the relation between the average density, as one of the key-properties of the polyurethane integral skin foam products, and the surface hardness and the shrinkage have been studied. Finally, the two time-dependent properties, the volumetric shrinkage and the surface hardness, have been investigated.