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The e ect of the manufacturing parameters on the surface hardness and shrinkage of polyurethane integral skin foam prod- ucts 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 sur- face hardness were estimated by regression analysis. Further- more 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. Fi- nally, the two time-dependent properties, the volumetric shrink- age and the surface hardness, have been investigated.

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