全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
科学通报  2011 

织构化表面轮廓与温度对液滴状态控制的研究

, PP. 74-78

Keywords: 织构化表面,Leidenfrost,液滴,液滴控制,摩擦减阻,微反应器

Full-Text   Cite this paper   Add to My Lib

Abstract:

目前,织构化表面与液体流动行为间相互关系已成为摩擦减阻、微反应器等交叉研究领域热点,如何预测并主动控制液滴运动行为是设计与构建低摩擦表面与高效微反应器的首要问题.采用光刻法制备了织构化表面,并以动态接触角法表征了热织构化表面上单相态液滴的界面润湿性与表面温度之间关系,探索了织构化表面轮廓与温度对液滴润湿状态的控制方式.研究表明,液滴Leidenfrost温度随织构化表面轮廓形成的正交矩形波波长及微柱体体积增大而提高,但其随环境温度的升高而降低.基于Leidenfrost液滴在织构化表面上良好自润滑性,低推动力即可促使液滴在织构化表面上快速运动.

References

[1]  1. Squires T M, Quake S R. Microfluidics: Fluid physics at the nanoliter scale. Rev Mod Phys, 2005, 77: 977-026??
[2]  2. Broadwater S J, Roth S L, Price K E, et al. One-pot multi-step synthesis: A challenge spawning innovation. Org Biomol Chem, 2005, 3: 2899-906??
[3]  3. Gritzner G, Kreysa G. Nomenclature, symbols and definitions in electrochemical engineering. J Electroanal Chem, 1993, 360: 351-62??
[4]  9. Mason B P, Price K E, Steinbacher J L, et al. Greener approaches to organic synthesis using microreactors technology. Chem Rev, 2007, 107: 2300-318??
[5]  11. Noblin X, Kofman R, Celestini F. Ratchetlike motion of a shaken drop. Phys Rev Lett, 2009, 102: 194504??
[6]  12. Jorgenson J W, Lukacs K D. Zone electrophoreisis in open-tubular glass capillaries. Anal Chem, 1981, 53: 1298-302??
[7]  14. Linke H, Alemán B J, Melling L D, et al. Self-propelled Leidenfrost droplets. Phys Rev Lett, 2006, 96: 154502??
[8]  15. de Gennes P G, Brochard-Wyart F, Quéré D. Capillarity and Wetting Phenomena. New York: Springer, 2003
[9]  16. Kotz K T, Noble K A, Faris G W. Optical microfluidics. Appl Phys Lett, 2004, 85: 2658-660??
[10]  20. Quéré D, Ajdari A. Liquid drops surfing the hot spot. Nat Mater, 2006, 5: 429-30??
[11]  21. Madou M. Fundamentals of Microfabrication. Boca Raton: CRC, 1997
[12]  22. Bernarain J D, Stebbins C J, Mudawar I. Effects of surface roughness on water droplet impact history and heat transfer regimes. Int J Heat Mass Transfer, 1997, 40: 73-8??
[13]  4. J?hnisch K, Hessel V, L?we H, et al. Chemistry in microstructured reactors. Angew Chem Int Ed, 2004, 43: 406-46??
[14]  5. Watts P, Haswell S J. The application of micro reactors for organic synthesis. Chem Soc Rev, 2005, 34: 235-46??
[15]  6. W?rz O, J?ckel K P, Richter T, et al. Microreactors, a new efficient tool for optimum reactor design. Chem Eng Sci, 2001, 56: 1029-033??
[16]  7. Fletcher P D I, Haswell S J, Pombo-Villar E, et al. Micro reactors: Principles and applications in organic synthesis. Tetrahedron, 2002, 58: 4735-757??
[17]  8. Song H, Chen D L, Ismagilov R F. Reactions in droplets in microfluidic channels. Angew Chem Int Ed, 2006, 45: 7336-356??
[18]  10. Daniel S, Chaudhury M K, de Gennes P G. Vibration-actuated drop motion on surfaces for batch microfluidic process. Langmuir, 2005, 21: 4240-248??
[19]  13. Li D. Electrokinetics in Microfluidics. Amsterdam: Elsevier, 2004
[20]  17. Garnier N, Grigoriev R O, Schatz M F. Optical manipulation of microscale fluid flow. Phys Rev Lett, 2003, 91: 054501??
[21]  18. Aussillous P, Quéré D. Liquid marbles. Nature, 2001, 411: 924-27??
[22]  19. Fialkowski M, Bitner A, Grzybowski B A. Self-assembly of polymeric microspheres of complex internal structures. Nat Mater, 2005, 4: 93-7??

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133