Microscopic Model Of Nano-Scale Particles Removal In High Pressure Co2-Based Solvents

doi:10.1016/j.supflu.2008.12.012

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	Microscopic Model Of Nano-Scale Particles Removal In High Pressure Co2-Based Solvents
	Chai JJ; Zhang XG; Huang J; Tan X; Dai GL(戴国亮)
发表期刊	Journal of Supercritical Fluids
	2009
卷号	49 期号:2 页码:182-188
ISSN	0896-8446
摘要	A physical model is presented to describe the kinds of static forces responsible for adhesion of nano-scale copper metal particles to silicon surface with a fluid layer. To demonstrate the extent of particle cleaning, Received in revised form equilibrium separation distance (ESD) and net adhesion force (NAF) of a regulated metal particle with different radii (10-300 nm) on the silicon surface in CO2-based cleaning systems under different pressures were simulated. Generally, increasing the pressure of the cleaning system decreased the net adhesion force between spherical copper particle and silicon surface entrapped with medium. For CO2 + isopropanol cleaning system, the equilibrium separation distance exhibited a maximum at temperature 313.15 K in the Equilibrium separation distance regions of pressure space (1.84-8.02 MPa). When the dimension of copper particle was given, for example, High pressure 50 nm radius particles, the net adhesion force decreased and equilibrium separation distance increased with increased pressure in the CO2 + H2O cleaning system at temperature 348.15 K under 2.50-12.67 MPa pressure range. However, the net adhesion force and equilibrium separation distance both decreased with an increase in surfactant concentration at given pressure (27.6 or 27.5 MPa) and temperature (318 or 298 K) for CO2 + H2O with surfactant PFPE COO-NH4+ or DiF(8)-PO4-Na+. (C) 2008 Elsevier B.V. All rights reserved.
关键词	Equilibrium Separation Distance Net Adhesion Force High Pressure Supercritical Co2 Part Cleaning Supercritical Carbon-dioxide Interfacial-tension Pattern Collapse Surfactants Equilibrium Density Ethanol Bridges Fluid Water
DOI	10.1016/j.supflu.2008.12.012
收录类别	SCI
语种	英语
WOS记录号	WOS:000266896100008
关键词[WOS]	SUPERCRITICAL CARBON-DIOXIDE ; INTERFACIAL-TENSION ; PATTERN COLLAPSE ; SURFACTANTS ; EQUILIBRIUM ; DENSITY ; ETHANOL ; BRIDGES ; FLUID ; WATER
WOS研究方向	Chemistry ; Engineering
WOS类目	Chemistry, Physical ; Engineering, Chemical
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/26696
专题	微重力重点实验室
通讯作者	Zhang XG
推荐引用方式 GB/T 7714	Chai JJ,Zhang XG,Huang J,et al. Microscopic Model Of Nano-Scale Particles Removal In High Pressure Co2-Based Solvents[J]. Journal of Supercritical Fluids,2009,49,2,:182-188.
APA	Chai JJ,Zhang XG,Huang J,Tan X,&戴国亮.(2009).Microscopic Model Of Nano-Scale Particles Removal In High Pressure Co2-Based Solvents.Journal of Supercritical Fluids,49(2),182-188.
MLA	Chai JJ,et al."Microscopic Model Of Nano-Scale Particles Removal In High Pressure Co2-Based Solvents".Journal of Supercritical Fluids 49.2(2009):182-188.

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