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Waterproof and breathable polyacrylonitrile/(polyurethane/fluorinated-silica) composite nanofiber membrane via side-by-side electrospinning

Published online by Cambridge University Press:  05 May 2020

Yunge Yu ,
Fuli Zhang ,
Yan Liu ,
Yuansheng Zheng ,
Binjie Xin Open the ORCID record for Binjie Xin [Opens in a new window] ,
Zhenlin Jiang ,
Xiaoxiao Peng  and
Shixin Jin
Yunge Yu
Affiliation:
School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
Fuli Zhang
Affiliation:
The Naval Medical I Research Institute, Naval Medical Research Institute, Shanghai 200433, China
Yan Liu*
Affiliation:
School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
Yuansheng Zheng
Affiliation:
School of Textiles and Fashion, Shanghai University of Engineering Science, Shanghai 201620, China
Binjie Xin*
Affiliation:
School of Textiles and Fashion, Shanghai University of Engineering Science, Shanghai 201620, China
Zhenlin Jiang
Affiliation:
School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
Xiaoxiao Peng
Affiliation:
School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
Shixin Jin
Affiliation:
Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
*
a)Address all correspondence to these authors. e-mail: [email protected]
b)e-mail: [email protected]
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Abstract

Electrospun membranes have potential applications in the field of waterproof and breathable textile products. However, challenges still exist to improve the breathability, and waterproof and mechanical properties of these microporous membranes. In this paper, a novel hydrophobic microporous nanofiber membrane was prepared via side-by-side electrospinning of fluorosilane-modified silica nanoparticles (F–SiO2) blended with synthesized polyurethane (PU) solution and composited with the polyacrylonitrile (PAN) solution. To prepare F–SiO2, SiO2 nanoparticles were hydrophobically modified by fluorosilane. Composite nanofiber membranes with different blending ratios of PU(F–SiO2)/PAN were fabricated via side-by-side electrospinning by controlling the extruding speed of two spinnerets. Experimental results indicated that regarding F–SiO2 as hydrophobic inorganic particle can improve the hydrophobic properties of PU nanofiber membrane. The prepared PAN/(F–SiO2/PU) nanofiber microporous membranes exhibit relatively excellent waterproof and mechanical properties as that robust tensile strength (19.5 MPa), preferable water vapor permeability [10.3 kg/(m2 d)], favorable water contact angle (137.2°), and superior mechanical properties. It was believed that the reinforced PAN/(F–SiO2/PU) nanofibrous composite membranes have potential applications in chemical protective clothing, army combat uniforms, self-cleaning materials, and other medical products.

Keywords

polyurethanepolyacrylonitrilewaterproof and breathablefluorosilane-modified silica
Type
Article
Information
Journal of Materials Research , Volume 35 , Issue 9 , 14 May 2020 , pp. 1173 - 1181
Copyright
Copyright © Materials Research Society 2020

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