Preparation of pitch from pyrolized fuel oil by electron beam radiation and its melt-electrospinning property
* 본 문서는 배포용으로 복사 및 편집이 불가합니다.
서지정보
ㆍ발행기관 : 한국탄소학회
ㆍ수록지정보 : Carbon Letters / 15권 / 2호
ㆍ저자명 : Jin-Young Jung, oung-Seak Lee
ㆍ저자명 : Jin-Young Jung, oung-Seak Lee
목차
1. Introduction2. Experimental
3. Results and Discussion
4. Conclusions
Acknowledgement
References
한국어 초록
Spinnable pitch for melt-electrospinning was obtained from pyrolized fuel oil by electronbeam (E-beam) radiation treatment. The modified pitch was characterized by measuring itselemental composition, softening point, viscosity, molecular weight, and spinnability. Thesoftening point and viscosity properties of the modified pitch were influenced by reformingtypes (heat or E-beam radiation treatment) and the use of a catalyst. The softening point andmolecular weight were increased in proportion to absorbed doses of E-beam radiation andadded AlCl3 due to the formation of pitch by free radical polymerization. The range of themolecular weight distribution of the modified pitch becomes narrow with better spinningowing to the generated aromatic compounds with similar molecular weight. The diameter ofmelt-electrospun pitch fibers under applied power of 20 kV decreased 53% (4.7 ± 0.9 μm)compared to that of melt-spun pitch fibers (10.2 ± 2.8 μm). It is found that E-beam treatmentfor reforming could be a promising method in terms of time-savings and cost-effectiveness,and the melt-electrospinning method is suitable for the preparation of thinner fibers thanthose obtained with the conventional melt-spinning method.영어 초록
Spinnable pitch for melt-electrospinning was obtained from pyrolized fuel oil by electronbeam (E-beam) radiation treatment. The modified pitch was characterized by measuring its
elemental composition, softening point, viscosity, molecular weight, and spinnability. The
softening point and viscosity properties of the modified pitch were influenced by reforming
types (heat or E-beam radiation treatment) and the use of a catalyst. The softening point and
molecular weight were increased in proportion to absorbed doses of E-beam radiation and
added AlCl3 due to the formation of pitch by free radical polymerization. The range of the
molecular weight distribution of the modified pitch becomes narrow with better spinning
owing to the generated aromatic compounds with similar molecular weight. The diameter of
melt-electrospun pitch fibers under applied power of 20 kV decreased 53% (4.7 ± 0.9 μm)
compared to that of melt-spun pitch fibers (10.2 ± 2.8 μm). It is found that E-beam treatment
for reforming could be a promising method in terms of time-savings and cost-effectiveness,
and the melt-electrospinning method is suitable for the preparation of thinner fibers than
those obtained with the conventional melt-spinning method.
참고 자료
없음태그
"Carbon Letters"의 다른 논문
- Effects of carbonization temperature on pore developmen..5페이지
- Fabrication of isotropic bulk graphite using artificial..4페이지
- Facile preparation of self-assembled wool-based graphen..6페이지
- Effect of stacking sequence on the flexural and fractur..4페이지
- Study on lowering the percolation threshold of carbon n..8페이지
- Study on electrochemical performances of sulfur-contain..4페이지
- Removal of methylene blue using lemon grass ash as an a..8페이지
- Superhydrophobic carbon-based materials: a review of sy..16페이지
- Double-walled carbon nanotubes: synthesis, structural c..12페이지
- My life and Korean carbon society4페이지