The effect of ionic liquids on the mechanical properties of electrospun polyacrylonitrile membranes

被引：6

作者：

Plamus, Tiia ^{[1
]}

Savest, Natalja ^{[1
]}

Viirsalu, Mihkel ^{[1
]}

Harz, Patrick ^{[2
]}

Tarasova, Elvira ^{[1
]}

Krasnou, Illia ^{[1
]}

Vassiljeva, Viktoria ^{[1
]}

Kallavus, Urve ^{[3
]}

Krumme, Andres ^{[1
]}

机构：

[1] Tallinn Univ Technol, Lab Polymers & Text Technol, Dept Mat & Environm Technol, Ehitajate Tee 5, EE-19086 Tallinn, Estonia

[2] German Inst Text & Fiber Res, Korschtalstr 26, D-73770 Denkendorf, Germany

[3] Tallinn Univ Technol, Dept Mech & Ind Engn, Ehitajate Tee 5, EE-19086 Tallinn, Estonia

来源：

POLYMER TESTING | 2018年 / 71卷

关键词：

Conductive membrane; Mechanical properties; Electrospinning; Ionic liquids; Polyacrylonitrile; POLYMER; FIBERS; BEHAVIOR;

D O I：

10.1016/j.polymertesting.2018.09.003

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Obtaining electrospun membranes with good mechanical properties is important for their various applications. Several ionic liquid-based additives (IL-based) for electrospinning solutions have been proven to increase the conductivity of electrospun membranes. The aim of this study was to analyse the dependence of the mechanical properties of electrospun membranes on the additives used. Moreover, the relationship between conductivity, specific stress and the morphology of the membranes was studied. Polyactrylonitrile (PAN) solutions were prepared in dimethylformamide (DMF) and dimethylsulfoxide (DMSO) solvents. Two different Its (1-buty1-3-methylimidazolium chloride [BMIm]Cl and 1-ethyl-3-methylimidazolium bromide [EMIm]Br) were used at a concentration of up to 10 wt%. Overall, it can be said that, with IL [EMIm]Br, higher specific stress values were achieved. Most stable values of specific stress were achieved with membranes obtained from solutions with DMF, especially with added IL [BMIm]Cl. The highest specific stress value achieved was 87.93 +/- 5.15 mN/tex.

引用

页码：335 / 343

页数：9

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