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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Morphology of Electrospun Non-Woven Membranes of Poly(vinylidene fluoride-co-hexafluoropropylene): Porous and Fibers

Full text
Author(s):
Dognani, Guilherme [1] ; Cabrera, Flavio Camargo [1] ; Job, Aldo Eloizo [1] ; da Silva Agostini, Deuber Lincon [1]
Total Authors: 4
Affiliation:
[1] Sao Paulo State Univ FCT UNESP, Sch Technol & Sci, BR-19060080 Presidente Prudente - Brazil
Total Affiliations: 1
Document type: Journal article
Source: FIBERS AND POLYMERS; v. 20, n. 3, p. 512-519, MAR 2019.
Web of Science Citations: 0
Abstract

In this paper, poly(vinylidene fluoride-co-hexafluoropropylene) nanofibers membranes were fabricated by facile single-capillary electrospinning at different times of production. The materials were characterized by thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), atomic force microscopy (AFM), contact angle (CA), mercury porosity intrusion (MIP), Tensile tests, capillary flow porosity (CFP) and, BET surface by nitrogen adsorption-desorption. The membranes were fabricated varying the fibers density, the thickness and the morphology. The samples presented a good fiber diameter distribution and an average diameter of 321 nm. AFM results showed high porosity (82.7-87.5 %), a high contact angle of 159.2 degrees, mean pore size of 0.637 m and hydrophobicity of the membranes. A low value of permeate pure water flux, 5.2 %, was observed for the densest fabricated membrane. The porosity of fibers diameters was similar for all samples, which is an important parameter as they can be potential materials for membrane distillation process. (AU)

FAPESP's process: 16/06288-4 - DEVELOPMENT OF CONDUCTIVE POLYMER NANOFIBER OBTAINED BY ELECTROSPINNING FOR APPLICATION IN SENSORS AND HETEROJUNCTION
Grantee:Deuber Lincon da Silva Agostini
Support type: Regular Research Grants
FAPESP's process: 15/21261-2 - Development of water pre-filters from PVDF electrospun membranes with functionalized surface for adsorption of CR6+
Grantee:Guilherme Dognani
Support type: Scholarships in Brazil - Doctorate