作　　者： ; ; ; ; ;

机构地区： 华南理工大学化学与化工学院化学工程研究所

出　　处： 《化工新型材料》 2005年第9期5-9,共5页

摘　　要： 超临界流体具有粘度低,密度大,较好的流动、传质、传热和溶解性等特性。超临界流体对状态参数的改变十分敏感,温度和压力较小的变化就会使流体的性质发生较大的改变。超临界流体可作为热敏性物质分离纯化方法及产品分析和测定手段,本文主要介绍超临界流体在纳米材料制备中的应用。 The supercritical fluid has the following unique characteristics： low viscosity, high density, better performance of flow, mass and heat transfer, dissolution and so on. The supercritical fluid is very sensitive to alternation of state parameter. The bigger change of fluid nature is caused by the smaller change of temperature and pressure. The supercritical fluid, as separation and purification methods of heat-sensitive substances and analysis and assay means of product, has been used in the food industry, medical industry, detergent ＆cosmetic, petrochemical industry, pesticide, forest industry, tobacco industry, environmental protection and so on. Nanomaterials, as a new type of functional materials, have been widely used. In this article, the application of supercritical fluid in the preparation of nanomaterials are introduced in detail,

关 键 词： 超临界流体 纳米材料 制备 应用 分离纯化方法 热敏性物质 状态参数 产品分析 溶解性

领　　域： [化学工程] [一般工业技术]