Polyurethane is a kind of widely used synthetic material, and its industrial production is mainly prepared by the reaction of polyisocyanate and polyol usually containing hydroxyl group. By choosing different number of functional groups and different types of functional groups, polyurethane products with different properties and various apparent forms can be prepared by different synthesis processes. There are very soft or hard foam plastics, elastomer rubber with excellent wear resistance, paint and coatings with high gloss, but also high line of synthetic fibers, synthetic leather with excellent flexural resistance, and adhesives with excellent bonding properties, etc.
The comprehensive performance of polyurethane elastomer is superior, and any other rubber and plastic are incomparable. And polyurethane elastomers can be processed according to the requirements of processing molding, almost any kind of conventional processing of polymer materials, such as mixing molding, liquid pouring, melting injection, extrusion, calendering, blow molding, liquid coating, spinning and mechanical processing. Polyurethane elastomer has a wide range of applications, and its products are almost widely used.