화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2005년 가을 (10/13 ~ 10/14, 제주 ICC)
권호 30권 2호
발표분야 고분자 구조 및 물성
제목 Characterization of electrospun aligned polymeric nanofibers
초록 Aligned nanofibers have potential applications in the field of composite materials, reinforcements, electrochemical sensing, blood vessel engineering and tissue engineering1-5. Several approaches have been introduced for the alignment of polymeric nanofibers. Researchers have explored novel methods including mechanical and electrostatic ways to continuously align polymer nanofibers.
In this work, we use surface linear velocity of disk type collector for aligned polymeric nanofibers. A 20 wt% of nylong 6 solution that dissolved in mixing solvent of formic acid and acetic acid with 70/30 by volume ratio was prepared. Electrospun nylon6 nanofiber targeted on disk-type collector that rotated with 0, 5, 10, 15, 20 m/s of surface linear velocity. Fiber morphology was investigated with scanning electron microscopy (SEM), and crystalline properties were investigated with both differential scanning calorimetry (DSC) and wide angle X-ray diffraction (WAXD). Mechanical properties of twisted yarn prepared from aligned nanofibers was also investigated.



Acknowledgement
This work was supported by the Regional Research Center Program of the Korean Ministry of Education & Human Resources Development through the Center for Health Care Technology Development, Chonbuk National University, Chonju, 561-756, Republic of Korea.

References
1. S. R. Bhattarai, N. Bhattarai, H. K. Yi, P. H. Hwang, D. I. Cha, H. Y. Kim,
Biomaterials 2004, 25, 2595
2. Xu, C. Y.; Inai, R.; Kotaki, M.; Ramakrishna, S. Biomaterials 2004, 25, 877
3. Soundarrajan, P.; Patil, A.; Dai, L. J. Vac. Sci. Technol. A 2003, 21, 1198
4. Doshi, J.; Reneker, D. H. J. Electrost. 1995, 35, 151
저자 박희천, 이봉석, 길명섭, 이덕래, 김학용
소속 전북대
키워드 aligned nanofibers
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