Zhou Jialiang

Research development of nano hybrid functional composite polyester fiber

Poly(ethylene terephthalate) (PET) is one of the most extensively used semicrystal polymers, which has found its applications in fibers, films, packaging and molding materials. About 80% of polyester products is polyester fiber and polyester fiber is the largestvariety of chemical fiber, but its industrial development is limited by severe homogeneousness, unitary function, inferior functionalization ratio, high cost and low added value. Due to good machinability and excellent mechanical properties of poly(ethylene terephthalate) fiber, a common method to realize the functionalization of PET fiber is introducing nano-materials into the PET matrix based on organic/inorganic hybrid principle. This paper summarizes the research status of PET matrix nano-hybrid functional fibers with flame-retardant, antibacterial, uvioresistant and conductive properties, including the preparation methods, modification ways, fabrication techniques and functional performances of these fibers. Also, this paper evaluates the merits of three modification methods: surface coating, blending and in situ polymerization; furthermore investigates the effect of blending and in situ polymerization on the dispersion of nano materials and the spinnability of nano composites. Finally, this paper prospects the developing direction of PET matrix nano-hybrid functional fibers: structural and functional design of nanomaterials, controllable interface of nano-materials and polyester, post-finishing technology of nano-hybrid materials; develop multifunctional, intelligent and environment-friendly nano hybrid industrial fibers, and set up systemic evaluation standards of ecological safety of nano-hybrid fiber.