Why Does Polyurethane Coating with Good Wear Resistance?
Polyurethane is a polymer containing a carbamate group in the main chain of the macromolecule called polyurethane. Polyurethane is divided into two categories: polyester polyurethane and polyurethane. Polyurethane has many excellent properties, so it has a wide range of uses.
Since the groups contained in the polyurethane macromolecules are all strong groups, and the macromolecules also contain poly or polyester flexible segments, the polyurethane has the following characteristics:
①High mechanical strength and oxidation stability;
② Has high flexibility and resilience;
③It has excellent oil resistance, solvent resistance, water resistance and fire resistance.
Since polyurethane has many excellent properties, it has a wide range of uses.
Polyurethane is mainly used as polyurethane synthetic leather, polyurethane foam, polyurethane coating, polyurethane adhesive, polyurethane rubber (elastomer) and polyurethane fiber. In addition, polyurethane is also used in civil engineering, site drilling, mining and petroleum engineering to block water and stabilize buildings or roadbeds; as a paving material, it is used for running tracks of sports fields, indoor floors of buildings, etc.