Abstract:An aromatic polyamide resin solution containing furan ring (f-resin) was prepared by polycondensation of low-temperature solution using bio-based furandiyl chloride and 3,4"-diaminodiphenyl ether as raw material and N,N-dimethylacetamide as solvent, and then aromatic polyamide fiber containing furan ring (f-fiber) was obtained by dry-jet wet spinning. The surface morphology and aggregate structure of f-fiber were analyzed by scanning electron microscopy (SEM) and X-ray diffraction (XRD), and the results show that the spinnability of f-resin is good, the thickness of f-fiber is uniform, the surface is smooth, and the crystallinity could reach more than 41%. Its mechanical properties, thermal stability, flame retardancy were studied and compared with meta-aramid (m-fiber), which are excellent and slightly lower than those of m-fiber. Besides, raw materials of f-fiber are bio-based, which are environmentally friendly and have broad development prospects.