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PVA/탄소나노튜브 복합수용액의 유변학적 특성과 전기방사특성에 관한 연구Rheological Properties and Electrospinning of PVA/CNT Aqueous Solution
- Other Titles
- Rheological Properties and Electrospinning of PVA/CNT Aqueous Solution
- Issue Date
- 2006
- Publisher
- 한국섬유공학회
- Keywords
- carbon nanotube; PVA; surfactant; rheological properties; electrospinning; carbon nanotube; PVA; surfactant; rheological properties; electrospinning
- Citation
- 한국섬유공학회지, v.43, no.5, pp.251 - 256
- Journal Title
- 한국섬유공학회지
- Volume
- 43
- Number
- 5
- Start Page
- 251
- End Page
- 256
- ISSN
- 1225-1089
- Abstract
- Aqueous solutions of poly(vinyl alcohol)(PVA) containing single-walled carbon nanotube (SWNT) and multi-walled carbon nanotube (MWNT) were prepared by using surfactants and sonication. It was found that the solution viscosities are significantly dependent on types and amount of surfactant and nanotubes. Sodium dodecylbenzene sulfonate (NaDDBS) was most effective in dispersing SWNT in water by showing that highest viscosity of PVA/SWNT aqueous solution. The viscosity of PVA/CNT aqueous solution increased with increasing of sonication time implying the exfoliation of CNT. However, the viscosity decreased at the additional sonication due to breaking of nanotubes in length. PVA/SWNT aqueous solution showed much higher viscosity than PVA/MWNT solution due to the increase of specific surface area and entanglement by exfoliation of SWNT rope to the individual nanotube. The PVA/SWNT solution exhibited good spinnability in electrospinning.
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