JOURNAL OF TEXTILE RESEARCH ›› 2017, Vol. 38 ›› Issue (10): 7-12.

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Synthesis of fluorinated polyurethane and acid-proofness and water permeability of electrospun nanofiber membrane composite fabrics

  

  • Received:2017-01-06 Revised:2017-07-18 Online:2017-10-15 Published:2017-10-16

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Abstract:

In order to allow acid-proofing fabric to have high protective performance and comfortability, a kind of electrospun fibrous membranes composite fabrics with high acid-proofness and water permeability were prepared by introducing fouoro into polyurethane (PU) by synthesis to obtain fluorinated polyurethane (FPU), processing FPU into nanofiber by lelectrostatic spinning,  and depositing on the fabric surface. FPU were characterized by Fourier transform infrared spectroscopy FT-IR and nuclear magnetic resonance(NMR) , and the acid-proofness and water permeability of the composite fabrics were investigated.FT-IR results indicate that hte synthesized peoduct is FPU. NMR results indicated that chemical structure of FPU is the same as the desired one. Contact angle measurements suggested that PU/FPU fibrous membranes composite fabric possessed remarkable superhydrophobicity and corrosion resistance with contact angle to water up to 141° and 80% H2SO4 up to 124°. Comfort property test show that the resultant composite fabrics present high water permeability of 4177.49 g/(㎡•24h）, and good air permeability of 24.15 mm/s.

Key words: fluouinaated polyurethane, electrospinning, composite fabric, acid-proofness and water permeability

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