Effect of sonication treatment on electrospinnability of high-viscosity PAN solution and mechanical performance of microfiber mat

Cao, Qi; Wan, Yuqin; Qiang, Jing; Yang, Ruihua; Fu, Jiajia; Wang, Hongbo; Gao, Weidong; Ko, Frank

doi:10.1007/s13726-014-0290-3

Cited by 16 publications

(5 citation statements)

References 24 publications

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“…This can help to improve PVDF solubility in a mixed solvent, which can create additional chain entanglements, and a more stable electrospinning process can be achieved. As it has been observed for solutions of polyacrylonitrile [27] the electrospinnability was significantly improved by the sonication treatment. It was suggested that sonication improved rheological properties of solutions, increased their electric conductivity and reduced their surface tension.…”

Section: Introductionsupporting

confidence: 57%

Formation of uniform PVDF fibers under ultrasound exposure in presence of anionic surfactant

Tarasova

Tamberg

Viirsalu

et al. 2015

Journal of Electrostatics

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Section: Introductionsupporting

confidence: 57%

Formation of uniform PVDF fibers under ultrasound exposure in presence of anionic surfactant

Tarasova

Tamberg

Viirsalu

et al. 2015

Journal of Electrostatics

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“…In light of the challenges faced in the testing of individual nanofiber, it would be desirable to develop a quantitative relationship between the tensile properties of an individual nanofiber and a nanofiber membrane. Therefore, the tensile properties of random nanofiber membranes, which are easily obtained from macroscopic tensile tests of the membrane, can be used as an indicator of the mechanical properties of individual nanofiber [ 25 , 26 ]. Computer modeling of electrospun nanofiber membranes is a difficult task, because of the randomness of the meso structure of the fiber web and its sophisticated mechanical response.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Comprehensive Tensile Relationship in Electrospun Silk Fibroin/Polycaprolactone Nanofiber Membranes

Yin

Xiong

2017

Membranes

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The mechanical properties of electrospun nanofiber membranes are critical for their applications. A clear understanding of the mechanical properties that result from the characteristics of the individual fiber and membrane microstructure is vital in the design of fiber composites. In this reported study, silk fibroin (SF)/polycaprolactone (PCL) composite nanofiber membranes were preparedusing an electrostatic spinning technology. The nanofiber orientation distribution (FOD) of the membrane was analyzed using multi-layer image fusion technology, and the results indicated the presence of an approximately uniform distribution of fibers in the electrospun membranes. The relationship between the single nanofiber and the membrane was established by analyzing the geometrical structure of the cell by employing a representative volume element (RVE) analysis method. The mechanical properties of the 272 nm diameter SF/PCL composite fibers were then predicted using the developed model.

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“…Thus, most of the mechanical test specimens should be obtained from fibrous mats. Each nanofiber property was evaluated by quantitative analysis comparison with nanofiber mat mechanical properties [7][8][9][10][11]. Petterson et al introduced mechanical models of nonwoven fabrics with unit cells and fiber directions [12].…”

Section: Introductionmentioning

confidence: 99%

A Study on Tensile Strain Distribution and Fracture Coordinate of Nanofiber Mat by Digital Image Correlation System

2020

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Strain gauges are commonly used for tension tests to obtain the strain of a metal test specimen. They make contact, however, so the gauges are not applicable to every type of test specimen. That is the reason why a non-contact type measurement system is required. Nanofibrous mats, manufactured by electrospinning, have different structures and thicknesses. Displacement and strain distributions for all ranges of the specimen have never been demonstrated for nanofiber mats so far. Wrinkled nanofibrous mats of polyurethane were made and then tension-tested. The Digital Image Correlation (DIC) method was employed to measure displacement, then to calculate strain for all areas of the specimen. The DIC system consisted of a CMOS camera, control PC and operating software with a DIC algorithm: then, the Center of Gravity (COG) algorithm was used for this system. A cross-head speed of 3 mm/min was set for the tension test. The image record speed was one frame a second. In total, 400 image frames were obtained from the start, and then displacement and strain distributions were acquired for a 400 second tension test. The strain distribution from DIC system showed good agreement with the test result by a universal testing machine.

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Effect of sonication treatment on electrospinnability of high-viscosity PAN solution and mechanical performance of microfiber mat

Cited by 16 publications

References 24 publications

Formation of uniform PVDF fibers under ultrasound exposure in presence of anionic surfactant

Formation of uniform PVDF fibers under ultrasound exposure in presence of anionic surfactant

Analysis of the Comprehensive Tensile Relationship in Electrospun Silk Fibroin/Polycaprolactone Nanofiber Membranes

A Study on Tensile Strain Distribution and Fracture Coordinate of Nanofiber Mat by Digital Image Correlation System

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