Polyetheramine D-230 is a kind of diamine on the base of the copolymer backbone, its average molecular weight is about 220, with the amino group lying on the second polyether end carbon. The density of D-230 at 20℃ is 0.9080g/cm3, flashing point is 1180℃, PH value is 11.6, with 68 reactive equivalent value, light color, low viscosity, low vapor pressure, and high primary amine content, It can be dissolved to various melting agents, Slightly dissolved to water.