Characterization of porosity of polystyrene fibers electrospun at humid atmosphere

被引：38

作者：

Fashandi, H. ^{[1
]}

Karimi, M. ^{[1
]}

机构：

[1] Amirkabir Univ Technol, Dept Text Engn, Tehran 15914, Iran

来源：

THERMOCHIMICA ACTA | 2012年 / 547卷

关键词：

Electrospinning; Porosity characterization; Thermoporometry; Nitrogen adsorption/desorption; Electrospun fiber density; PORE-SIZE DISTRIBUTION; DIFFERENTIAL SCANNING CALORIMETRY; WATER/POLYMER INTERACTION PARAMETER; HIGHLY POROUS FIBERS; ULTRAFILTRATION MEMBRANE; SURFACE-MORPHOLOGY; SILICA-GELS; FABRICATION; NANOFIBERS; PERFORMANCE;

D O I：

10.1016/j.tca.2012.08.003

中图分类号：

O414.1 [热力学];

学科分类号：

070201 [理论物理];

摘要：

The porosity of fibers electrospun from polystyrene (PS)/dimethylformamide (DMF) solution at environmental conditions of 40 degrees C and 60% relative humidity is characterized by three principally different methods, i.e. thermoporometry, nitrogen adsorption/desorption (according to BET, DFT and BJH theories) and density measurements. Different aspects of porosity including mean pore radius, specific surface area and total pore volume of electrospun fibers are evaluated. Results demonstrate that each of these aspects can be best described by one of the investigated techniques. In other words the mentioned methods act as complementary approaches to make known the characteristic of porous electrospun fibers. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：38 / 46

页数：9

共 41 条

[1]

(Vapour plus liquid) equilibria of (water plus dimethylformamide): application of the headspace gas chromatography for the determination of thermodynamic interactions [J].