Abstract:

　The key factor of preparing melamine formaldehyde fiber is obtaining stable spinning solution. A
two step procedure was used to prepare the spinning solution. The first step was to synthesize the lower
viscosity and water2soluble melamine formaldehyde (MF) resins and the second one was to mix the resins with
PVA solution. The viscosity′s stability of MF′s solution and the spinning solution of MFPPVA was investigated.
Results show that resin′s structure at different polymerization phase has an effect on the stability of the spinning
solution. At the meantime , the mixture status , mixing temperature , ratio of MF to PVA , and storage time ,
also had an influence on the stability of spinning solution