Preparation and Study on Multifunctional Ag/PAN Pearl Nanofiber Membrane
Multifunctional silver/polyacrylonitrile ( Ag/PAN) pearl nanofiber membranes were prepared by electro-spinning and magnetron sputtering.The influence of different sputtering time on the microstructure,chemical struc-ture,surface wettability,electrical conductivity and far infrared emission of Ag/PAN pearl nanofiber membrane were investigated.The size of silver particles increase gradually with the increasing sputtering time,and when the deposition time is 25 min,the silver nanoparticle membrane show roughness and compactness.Moreover,the PAN pearl nanofiber membrane changes from hydrophilicity to hydrophobicity after the sputtering.Meanwhile,the con-ductivity of the PAN pearl nanofiber membrane is significantly improved,the water contact angle and resistivity of the fiber membrane are 142.85°and 0.039Ω·cm,respectively,with the sputtering time increased to 25 min.Ag/PAN pearl nanofiber membrane not only has far-infrared emission performance,but also avoids the loss of radiation heat under the action of nano silver film,achieving the function of thermal storage and insulation.
pearl nanofiber membranenano-silver filmelectrospinningmagnetron sputtering
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