Synthetic skins based on aqueous solutions of polyurethane and their phisico-mechanical properties

Purpose.Therefore, the aim of our study is to improve the consumer properties of synthetic leather through the use of a new base (frame polyester material) and the use of an aqueous solution of polyurethane. Notable results have been achieved in the production of soft synthetic and synthetic leather. Synthetic leather well-imitating natural leather, are soft, elastic, have good properties. The main disadvantages of synthetic leather include the lack of proper physical and mechanical properties. The shortage of natural leather, constantly growing, leads to the need to accelerate the development and production of a new type of synthetic materials with improved properties. One way to solve these problems is to develop new, environmentally friendly synthetic skins with improved properties. The possibility of production of such synthetic leather will expand the modern range. Findings. Physical and mechanical properties of the synthetic skin determine its structure and rational composition of the formulation is a qualitative indicator of synthetic skin and indicate approaches to the regulation of their properties. The results of studies of synthetic skins, obtained using different bases, showed the presence of the necessary consumer properties, which creates conditions for the production of a wide range of synthetic skins with new predetermined skin properties. Indicators of physical and mechanical properties of the synthetic skin-water vapor permeability, hygroscopicity and moisture return depend on the selected base, facial coating and the like. The results indicate the possibility of regulating the hygienic properties of the new synthetic skin by changing the ratio of components. According to the results of the sanitary and nepidemiological examination, it was found that the new synthetic leather meets the sanitary and hygienic requirements and can be used both in footwear and in other light industries

leather; synthetic; property; process; polyurethane; polyvinyl chloride