Abstract:

Relative to conventional petrochemical polyamide fiber, bio-based polyamide fiber is processed and obtained by a biological method such as castor oil cracking or glucose fermentation, and is green and environmental friendly. Bio-based polyamide fiber has excellent properties such as high strength, wear resistance and moisture absorption equivalent to conventional nylonfiber, and has big advantages in aspects of sustainable sources of raw materials, function, etc. But most of them is failed to industrialize due to overhigh cost and poor extraction process. In recent years, the castor oil cracking process and the glucose fermentation process have been developed rapidly. Especially the efficiency of key enzymes in the microbiological fermentation has been greatly improved domestically, so that the quality and cost of biomass polyamide fiber monomers are controlled, which helps to break long-term concentrated  market control of international companies to diamine monomer of polyamide materials. It also has a realistic industrialization prospect and broad application prospects in fields of chemical industry, automotive industry and military equipment.

Key words: biomass, bio-based polyamide fiber, processing technology, industrialization