Preparation of Hydrophilic Poly(Vinylidene Fluoride) Ultrafine Fiber Porous Membranes

被引：0

作者：

Yang Yin ^{[1
]}

Wang Xuefen ^{[1
]}

Xu Guangming ^{[1
]}

机构：

[1] Donghua Univ, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China

来源：

PROCEEDINGS OF 2009 INTERNATIONAL CONFERENCE ON ADVANCED FIBERS AND POLYMER MATERIALS, VOLS 1 AND 2 | 2009年

关键词：

poly(vinylidene fluoride); electrospin; poly(viny pyrrolidone); tetraethoxysilane; SOL-GEL; PVDF; SPECTRA; HYBRIDS;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Hydrophilic poly(vinylidene fluoride) (PVDF) ultrafine fiber porous membranes were prepared by electrospinning PVDF/poly(vinyl pyrrolidone) (PVP)/tetraethoxysilane (TOES) from the mixed solvents of N,N-dimethylformamide and acetone. The as prepared electrospun PVDF hybrid membranes were chemical post-treated in hydrochloric acid (HCl). The TEOS within the hybrid membranes was hydrolyzed and polymerized into SiO2 gels. FT-IR spectra revealed that Si-O-Si bonds and Si-OH bonds exists on the surface of hybrid membrane. The water contact angle (CA) analysis indicated the great changes of hydrophilicity between pure PVDF membranes and chemical post-treated PVDF hybrid membranes from superhydrophobicity (151 degrees) to superhydrophilicity (0 degrees). The SEM images showed microporous structures on the surface of electrospun PVDF fibers.

引用

页码：716 / 718

页数：3

共 14 条

[1] RAMAN AND INFRARED-SPECTRA ON SILICA-GEL EVOLVING TOWARD GLASS [J].