In the world, polyether amine or polyether amine compound curing agent is basically used

2019-12-06 17:21:37

Polyetheramine has the characteristics of low viscosity, good permeability, anti yellowing and weather resistance. Its FRP products have good flexibility and anti fatigue properties. It's hard to satisfy the general epoxy. Therefore, in large-scale epoxy FRP products, polyether amine is basically used as curing agent of epoxy resin. For example, the blades of wind turbines are generally about 50m long, and now they can be more than 80m long. In all-weather conditions, the service life is required to be more than 20 years. Due to the special requirements of this environment, polyether amine or polyether amine compound curing agent is widely used in the world. Of course, because polyether amine has this characteristic, other composite materials will also choose polyether amine in many occasions, such as yachts, skis, fishing rods and other products with good fatigue resistance.

Polyether amine has the advantages of good compatibility with other amines. It can be grafted and bridged with other amines to give other amines flexibility, fatigue resistance, high adhesion and high bonding strength. It can also be modified to make polyether amine solidified products retain their original advantages while increasing temperature resistance and corrosion resistance.

Polyether amines modified with other amines will sacrifice some of their own advantages, but as long as the treatment is properly configured, it can be achieved to get the best of both worlds critical point. Polyether amines are widely used to modify other amines and imidazoles. Various industries in China are also studying, the trial effect is generally good, especially in the application of composite materials, more ahead.

Amino terminated polyether (polyether amine) is a kind of cycloalkane compound capped by primary amino group or secondary amino group. It is the key raw material for spraying polyurea elastomer. The elastomer material has excellent physical and chemical properties, such as excellent tensile strength, elongation, wear resistance, aging resistance, corrosion resistance and tear resistance. Because amino terminated and isocyanate group can react and solidify rapidly, spray polyurea has excellent construction performance and environmental protection performance, so it is widely used. It can be widely used in the protection of important concrete, steel structure and other materials. For example, the wear-resistant lining of pick-up trucks, the anti-corrosion coating of cross sea bridges, the high-grade floor of aseptic workshops and hospitals, the protection and decoration of the surface wall of high-grade swimming pools, the internal and external protection of land and submarine oil pipelines, the wear-resistant coating of ship deck and propeller, the temporary apron, the sports venues and runways are widely used. It is a new type of material just rising in the 1990s.