Coaxial Electrospun Nanofibers of Poly(vinylidene fluoride)/Polyaniline Filled With Multi-Walled Carbon Nanotubes

被引:32
作者
Sarvi, A. [1 ]
Chimello, V. [2 ]
Silva, A. B. [2 ]
Bretas, R. E. S. [2 ]
Sundararaj, U. [1 ]
机构
[1] Univ Calgary, Dept Chem & Petr Engn, Calgary, AB T2N 1N4, Canada
[2] Univ Fed Sao Carlos, Dept Mat Engn, BR-13560 Sao Carlos, SP, Brazil
基金
加拿大自然科学与工程研究理事会; 巴西圣保罗研究基金会;
关键词
NANOCOMPOSITES; CRYSTALLIZATION; PERFORMANCE; ACTUATION;
D O I
10.1002/pc.22768
中图分类号
TB33 [复合材料];
学科分类号
摘要
Core-shell nanofibers of poly (vinylidene fluoride)/polyaniline/multi-walled carbon nanotubes (PVDF/PANi/MWCNTs) have been produced using the coaxial electrospinning technique. The nanofibers were semiconductive and had better piezoelectric properties than pure PVDF nanofibers. Piezoelectric PVDF nanofibers are capable of converting mechanical energy into electrical energy, which can be stored in charge storage devices. However, PVDF is not conductive and therefore, a conductive associate material is needed to transfer accumulated static charges into the capacitor. Fourier Transform Infrared (FTIR) spectroscopy and differential scanning calorimetry (DSC) were carried out to study the crystalline -phase of PVDF. There was an increase in -phase in the electrospun PVDF nanofibers filled with MWCNTs as compared with compression molded samples of neat PVDF. Incorporation of PANi as an intrinsically conductive polymer (ICP) and MWCNTs as conductive nanofiller helps the movement of static charges. Core-shell nanofibers had conductivities of about seven orders of magnitude higher than simple electrospun nanofibers. POLYM. COMPOS., 35:1198-1203, 2014. (c) 2013 Society of Plastics Engineers
引用
收藏
页码:1198 / 1203
页数:6
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