JOURNAL OF TEXTILE RESEARCH ›› 2016, Vol. 37 ›› Issue (10): 83-88.

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Preparation and waterproof and water-permeable properties of electrospun fluorinated polyurethanel polyurethane

  

  • Received:2015-09-16 Revised:2016-06-07 Online:2016-10-15 Published:2016-10-31

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Abstract:

In order to obtain a high waterproofness clothing with good permeability, the paper reported a novel waterproof and water permeable fabric, the electrospun nanofibrous membranes was prepared by electrospinning, which possessed low surface free energy and rough surface, and then a polyester-cotton woven fabric with twill was used as a substrate for the nanofibrous membranes. The effects of concentration of fouorinated polyurethane (FPU) on morphological structure of nanofibers, water proof, vapor permission and mechanical properties of the electrospun nanofibrous membranes composite fabrics were studied. The results indicated that the optimum concentration of FPU for the electrospun nanofibrous membranes composite fabrics were 1.00%, meantime, the composite fabrics were endowed with the water contact angle of 141 °, the water vapor transmission rate achieves to 3 958 g/(m² • 24 h）, and the spray grade can reach up to 5 , whilst the air permeability amount to 34.06 mm/s. The mechanical properties test showed that the mechanical properties gradually increased with the increase of FPU amount, when the concentration of FPU is 1.00%, and the value of bursting strength, tearing strength and tensile strength were enhanced by about 5.93%，30.79% and 5.48%, respectively.

Key words: waterproof and water permeable, electrospinning, composite fabric, fluorinated polyruethane/polyurethane nanofiber membrane

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