THF, TCE를 사용한 전기방사법에 의한 고분자량 폴리비닐카바졸 웹의 제조 및 특성(1)

• 영문명: Manufacturing of High Molecular Weight Poly (N-vinyl Carbazole) Web by Electrospinning Using THF, TCE and Its Characterization
• 발행기관: 한국산업기술융합학회(구. 산업기술교육훈련학회)
• 저자명: 김희삼(Hee Sam Kim) 김미선(Mi Sun Kim)
• 간행물 정보: 『산업기술연구논문지』산업기술교육훈련논문지 제18권 4호, 27~33쪽, 전체 7쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2013.12.30

영문 초록

Synthetic fibers of polymers have been produced for decades by conventional process, such as melt spinning, dry spinning or wet spinning. These techniques rely upon pressure-driven extrusion of a viscous polymer fluid and produce fibers that typically range from 10 to 500 ㎛ in diameter. Electrostatic fiber spinning, or ‘electrospinning,’ is a novel process for forming fibers with submicron-scale diameters through the action of electrostatic forces. Concentration of poly(N-vinyl carbazole) (PVCz) solution was varied from 3 to 18 wt%. All electrospinning procedures were carried out at room temperature. Applied voltage was ranged from 15 to 30 kV. Tip-to-collector distance (TCD) was varied from 10 to 40 cm. In the cases of, using THF and TCE as a solvent, at relatively lower concentration, bead and bead-onto-fiber were formed, comparing that with respect to fiber was found at relatively higher concentration. Increasing both the applied voltage and the TCD tended to produce smaller diameters of the electrospun fibers. The average diameter of PVCz fibers in web electrospun in TCE was much finer than that in THF. PVCz fibers in web prepared using high initial polymer concentration in THF were not cylindrical but planar similar with ribbon, owing to the difference in the viscosities and in evaporation in the rates of the solvent and the solutions.

목차

ABSTRACT

Ⅰ. 서론

Ⅱ. 실험

Ⅲ. 실험결과 및 고찰

Ⅳ. 결론

참고문헌

키워드

방사 분자량 전기방사 폴리비닐카바졸 웹 인가전압 방사거리 Spinning Molecular Weight Electrospinning PVCz Web Applied Voltage TCD(Tip to Collector Distance)