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- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2013.1
- 수록면
- 1 - 8 (8page)
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Microfluidic study is performed to investigate how multi-walled carbon nanotube (CNTs) aggregates disperse in blend system during morphology evolution. As the dispersed phase, a drop containing CNT is generated at the flow focusing and it deforms through a contraction channel (gap and width of contraction ${\sim}100{\mu}m$). When an aqueous polymeric drop (2 wt% alginic acid) with CNT (0.05 wt% or 0.5 wt%) is stretched through a 4:1 contraction channel, CNT aggregates enhances breakup of the stretched drop. Also, small droplets including CNTs are pinched off during relaxation of the stretched drop. Based on these observations, it is found that CNTs disperse in a multiphase system by repetitive breakup process during mixing rather than migration driven by chemical affinity.
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참고문헌 (26)
참고문헌 신청
Abbasi, S. / 2009 / Rheological properties and percolation in suspensions of multiwalled carbon nanotubes in polycarbonate / Rheol. Acta 48(9):943~959
Acrivos, A. / 1978 / Deformation and breakup of a single slender drop in an extensional flow, J. Fluid Mech / J. Fluid Mech 86:641~672
Alig, I. / 2008 / Destruction and formation of a carbon nanotubes network in polymer melts: rheology and conductivity spectroscopy / Polymer 49:3524~3532
Anna, S.L. / 2003 / Formation of dispersions using “flow focusing” in microchannels / App. Phy. Lett 82(3):364~366
Baudouin, A-C. / 2010 / Localization of carbon nanotubes at the interface in blends of polyamide and ethylene-acrylate copolymer / Polymer 51:1341~1354
Acrivos, A. / 1978 / Deformation and breakup of a single slender drop in an extensional flow, J. Fluid Mech / J. Fluid Mech 86:641~672
Alig, I. / 2008 / Destruction and formation of a carbon nanotubes network in polymer melts: rheology and conductivity spectroscopy / Polymer 49:3524~3532
Anna, S.L. / 2003 / Formation of dispersions using “flow focusing” in microchannels / App. Phy. Lett 82(3):364~366
Baudouin, A-C. / 2010 / Localization of carbon nanotubes at the interface in blends of polyamide and ethylene-acrylate copolymer / Polymer 51:1341~1354
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