Box 3: Technological research and industrialization of bio-based chemical fibers and degradable fiber materials
1. Bio-based chemical fiber raw materials. Breakthrough in Lyocell fiber special pulp, solvent, crosslinking agent and fiber grade 1, 3-propanediol, succinic acid, 1, 4-butanediol, furan dicarboxylic acid, high light pure lactide and other biological monomers and raw materials efficient preparation technology.
2. Bio-based chemical fibers. Improve the key technologies for large-scale production of Lyocell fiber, polylactic acid fiber, bio-based polyamide fiber, propylene glycol terephthalate fiber, polyethylene furanediate fiber, seaweed fiber, chitosan fiber, etc. The green manufacturing technology of cellulose fiber such as ionic liquid solvent method (ILS method) and low temperature urea method was studied.
3. Degradable fiber materials. The preparation technology of PBAT (copolymer of butylene adipate and butylene terephthalate), PBS (polybutylene succinate), PHBV (polyhydroxybutyrate valerate), FDCA-based polyester (furan dicarboxylic polyester), PHA (polyhydroxyfatty acid ester) and PCL (polycaprolactone) has been improved. Orderly development of poly3-hydroxyalkanoate (PHA), polybutylene succinate - co-butylene terephthalate (PBST) and other materials industrialization promotion and application.
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