T-403 polyoxypropylenetriamine is one member of a family of polyamines having as their backbones repeated oxypropylene units.It is a trifunctional primary amine having an average molecular weight of approximately 440. Its amine groups are located on secondary carbon atoms at the ends of aliphatic polyether chains.T-403 is light in color, low in viscosity and vapor pressure, high in primary amine content, and completely miscible in a wide variety of solvents, including water.It is Mainly used as a new epoxy curing agent. The resin cured by Polyetheramine T-403 has excellent toughness, impact resistance and low temperature tolerance. As its exothermic peak during solidification is low, Polyetheramine T-403 can be used to cast large epoxy resin components. In addition, its low color value makes the cured casting body crystal clear. Therefore, Polyetheramine T-403 is widely applied to epoxy composites, epoxy coatings, epoxy electrophoretic coatings, binders, circuit boards, sealants and artworks etc.Polyetheramine T-403 exhibits high performance especially in strengthening wind turbine composite blade materials. Each blade of an MW-grade wind turbines weighs 5 to 6 tons itself. Coupled with large forces in different directions and temperature variations from -50℃ to 70℃, this sets a very stringent standard for blade materials. Those applications have shown that proper epoxy resin, cured with a specific Polyetheramine T-403, fully meets the demand for the blades. So far there are no substitutes of it as the curing agent for such use.Polyetheramine T-403 is also a kind of additive from engine fuel oil, which has excellent resistance to sedimentation. It can also be applied to surfactants.
