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.
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