Gel Spinning of Polyacrylonitrile/Cellulose Nanocrystal Composite Fibers (PPT)

摘要

The PAN solution rheological properties are affected with the incorporation of CNCs. PAN crystallite orientation and crytallinity increases when adding CNC into PAN fiber, which improves the mechanical performance of composite fibers. Composite fiber with 5 wt % CNC loading showed highest tensile strength at 733 MPa, a 17 % increase as compared to that of the control PAN fiber. Composite fiber with 10 wt % CNC loading showed highest tensile modulus at 19.6 GPa, a 35 % increase as compared to that of the control PAN fiber. The storage modulus and T_g of composite fibers increases when adding CNC into PAN fiber.