东华大学学报(英文版)

2019, v.36(05) 445-450

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Preparation and Properties of Electrospun Polyvinylidene Fluoride (PVDF)/Polyurethane (PU) Composite Nanofiber Membranes
Preparation and Properties of Electrospun Polyvinylidene Fluoride (PVDF)/Polyurethane (PU) Composite Nanofiber Membranes

魏发云;成悦;吴倩倩;李珂;杨立双;付译鋆;张伟;张瑜;

摘要(Abstract):

Polyvinylidene fluoride( PVDF)/polyurethane( PU) composite nanofiber membranes were prepared by mixing PVDF and PU at different mass ratios. The microstructure and the crystal structure of the composite nanofiber membranes were analyzed by scanning electron microscopy( SEM),Fourier transform infrared( FTIR)spectroscopy and X-ray diffraction( XRD). The hydrophilicity, mechanical properties and piezoelectric properties were also tested. Results showed that when the mass ratio of PVDF to PU was 9 ∶1,the fiber membrane had the best microstructure,and the crystal form of PVDF changed from αcrystal to β crystal in the electrospinning. The addition of PU improved the hydrophilicity, mechanical properties, and piezoelectric signal of the fiber membrane. When the mass ratio of PVDF to PU was 9 ∶1,the tensile strength reached the peak value of( 10.39 ± 0.41) N,and the output voltage reached the maximum value of( 1.98 ± 0.12) V.

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基金项目(Foundation): Natural Science Foundation of Jiangsu Province,China(No.BK20190927);; Postdoctoral Daily Program of Jiangsu Province,China(No.2019Z104);; Natural Science Research Project of Xinglin College of Nantong University,China(No.2016K123);; Student Innovation Training Project of Nantong University,China(No.2019111);; Nantong University Scientific Research Fund,China(No.17R19)

作者(Author): 魏发云;成悦;吴倩倩;李珂;杨立双;付译鋆;张伟;张瑜;

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