Polyurethane is a polymer whose macromolecules contain an unsubstituted and (or) substituted urethane group. Polyurethane macromolecules can also contain simple and ester functional groups, urea, amide groups and some other functional groups that determine the complex properties of this polymer. Polyurethane belongs to synthetic elastomers and polyurethane leads the market among elastomers in the industrial field, thanks to a wide range of strength properties. Polyurethane is used as a substitute for rubber in the manufacture of products operating in aggressive environments, under conditions of high dynamic loads and temperatures. The operating temperature range is from −60 ° С to +110 ° С (short-term to +140 ° С).
What is made from polyurethane?
In recent years, polyurethane has found more and more applications in all areas of industry: for the manufacture of a variety of seals, elastic forms, parts for machines and equipment (shafts, rollers, springs, bushings, etc.).
Polyurethane is a unique material?
Perhaps you have already heard such a dialogue: - Will this detail work for a long time? - Of course, it is made from polyurethane!
What is better rubber or polyurethane?
If you compare these materials, the polyurethane clearly wins in its characteristics. But there are pros and cons. Polyurethane is very high quality, but expensive and difficult to manufacture material, at all stages from storage to full polymerization.
Why are polyurethanes so popular?
High abrasive resistance. Up to 50 times more durable than rubber, plastics, and in some respects metals. High tensile strength and resistance to cuts. High elasticity, which allows polyurethane products to withstand multiple bends well without breaking.