英语翻译This paper presents a procedure for preparing a nanoflui

英语翻译
This paper presents a procedure for preparing a nanofluid which is solid–liquid composite material consisting of solid nanoparticles with sizes
typically of 1–100 nm suspended in liquid.By means of the procedure,Cu–H2O nanofluids with and without dispersant were prepared,whose
sediment photographs and particle size distribution were given to illustrate the stability and evenness of suspension with dispersant.Aiming
at the dispersion of nano-Cu is regarded as the guide of heat transfer enhancement,the dispersion behavior of Cu nanoparticles in water were
studied under different pH values,different dispersant types and concentration by the method of zeta potential,absorbency and sedimentation
photographs.The results show that zeta potential has good corresponding relation with absorbency,and the higher absolute value of zeta potential
and the absorbency are,the better dispersion and stability in system is.The absolute value of zeta potential and the absorbency are higher at
pH 9.5.Hexadecyl trimethyl ammonium bromide (CATB) and sodium dodecylbenzenesulfonate (SDBS) can significantly increase the absolute
value of zeta potential of particle surfaces by electrostatic repulsions,and polyoxyethylene (10) nonyl phenyl ether (TX-10) can form a thick
hydration layer on the particle surfaces by steric interference,which leads to the enhancement of the stability for Cu suspensions.In the 0.1%
copper nano-suspensions,the optimizing concentrations for TX-10,CATB,and SDBS are 0.43,0.05,and 0.07%,respectively,which have the
best dispersion results.
.2007 Elsevier Inc.All rights reserved.
Keywords:Copper nano-suspensions; Dispersion and stability; Zeta potential; Absorbency

本文提出一个法制备纳米流体程序,是固体液体固体颗粒复合材料组成与尺寸
通常在1-100纳米悬浮液.通过对程序的方法,与不分散的Cu -水纳米流体的制备,其
照片和泥沙粒径分布说明了稳定性和悬浮与分散均匀度.针对
在纳米铜分散是作为强化传热导认为,铜纳米粒子分散在水中的行为
在不同的pH值,分散剂种类和浓度不同,研究由Zeta电位,吸光度和沉淀法
照片.结果表明,zeta电位,具有良好的吸水性的对应关系,具有较高的zeta电位绝对值
与吸光度,更好的分散和系统的稳定性. Zeta电位的绝对值与吸光度较高,
pH值9.5.十六烷基三甲基溴化铵（CATB）和十二烷基苯磺酸钠（SDBS的）可以显着提高绝对
颗粒表面的zeta电位的静电排斥力,和聚氧乙烯（10）壬苯基醚（的TX - 10）的值可以形成厚
水化颗粒层表面上的空间位阻干扰,从而导致对铜悬浮液的稳定性增强.在0.1％
铜纳米悬浮液,为TX - 10,CATB浓度的优化,和SDBS是0.43,0.05,和0.07％,分别有哪些
最佳分散效果.
. 2007年爱思唯尔公司保留所有权利.
关键词：铜纳米悬浮液,分散和稳定; Zeta电位;吸水性
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