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  • 03월 02일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제109회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Effect of evaporation rate of solvent on the diameter and morphology of electrospun nanofibers

2012년 3월 2일 13시 09분 14초
POLY.P-82 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
4월 25일 (수요일) 18:00~21:00
저자 및
김태훈, 박종래
서울대학교 재료공학부, Korea
Electrospinning is a facile and effective method to process solution into continuous fibers with diameters ranging from a few nanometers to a few micrometers. Because control of diameter and morphology of the fibers are important issue in nanofabrication, many papers have discussed the key factors that determine the diameter and morphology of electrospun fibers. Most of them have concentrated on either solution parameters such as viscosity, conductivity, and surface tension or experimental parameters such as electric field and flow rate. Although the evaporation rate of a solvent must influence the diameter/morphology of the electrospun fibers from a theoretical viewpoint, most of studies on the effect of evaporation rate have been focused on the pore generation on the surface of electrospun fibers. In this report, we investigated the effect of the evaporation rate of solvent during electrospinning on the diameter and morphology of the resultant fibers. Humidity and temperature was controlled to change the evaporation rate of the solution without changing other solution parameters. The result showed that long evaporation time decreased the average diameter and generated beads on the fibers. It indicates beadless nanofibers can be obtained by optimizing the ambient conditions without change of polymers and solvents.