Abstract:

The 3,4’-diaminodiphenyl is added to prepare meta-aramid Terpolymer, which rheological behaviors, thermal properties, fiber-forming properties and mechanical properties was studied. The result showed that meta-aramid Terpolymer belongs Non-Newtonian Fluid and 3,4’-diaminodiphenyl ether will slow the polymerization reaction rate；the decomposition temperature of the copolymer is 365.8℃and without melting point; the Fiber forming ability will reduced as 3, 4 '- diamino diphenyl ether increased; the breaking strength and young’s modulus of the fiber appeared a downward tendency as well as the elongation rose while the 3,4’-diaminodiphenyl content increased，while fiber heat-resisting performance improved best when the joined percentage of about 20%.