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A Study on the Electrospinning Process of Poly(vinyl acetate)(PVAc)
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폴리비닐아세테이트(PVAc)의 전기방사에 관한 연구

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Type
Academic journal
Author
이봉석 (전북대학교 섬유공학과) 이근형 (전북대학교 유기신물질공학과) 이덕래 (전북대학교 섬유공학과) 박병기 (전북대학교 섬유공학과) 김학용 (전북대학교 섬유공학과)
Journal
한국섬유공학회 한국섬유공학회지 한국섬유공학회지 제40권 제4호 KCI Excellent Accredited Journal
Published
2003.1
Pages
341 - 347 (7page)

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A Study on the Electrospinning Process of Poly(vinyl acetate)(PVAc)
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Abstract· Keywords

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Electrospinning is a method to prepare nanoscale fiber from polymer solutions. The present work focuses on the influence of molecular weight of polymer and the relationship between the morphology and solution viscosity in the electrospinning of poly(vinyl aceate) (PVAc). Polymer solution properties such as the viscosity and the surface tension were measured by viscometer and tensiometer, respectively. Also, electrospun PVAc web was characterized via scanning electron microscopy (SEM) and universal testing machine (UTM). The fiber diameter depended on the electrospinning parameters such as the molecular weight of polymer and the viscosity. Also, PVAc fibers with analogous average diameters resulted when the, spinning solutions had similar viscosity in spite of the different molecular weights of PVAc used. The fiber diameter increased with increasing viscosity. As linear velocity of the drum collector surface in the MD (machine direction) was faster than that of the CD (cross direction), electrospun fibers had a tendency to be arranged toward MD. As a result, the mechanical properties such as yield stress and tensile strength of MD were higher than those of CD.
#poly #vinyl acetate) #PVAc) #electrospinning #nanofibers

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