纳米技术与纳米材料(Ⅱ)——表面活性剂在纳米科技中的应用

Application of surfactants in nanotechnology

纳米技术已发展成为一门多学科交叉与渗透的新兴学科。表面活性剂在纳米技术中的应用,特别是在纳米材料制备中的应用,日益显示出广泛而深入的应用潜力。表面活性剂分子由于其所独具的双亲分子特性,能显著降低系统的界面张力,并能在溶液中形成胶团、微乳状液、囊泡和液晶等自组装体。表面活性剂分子所具有的这一性质,为纳米材料的制备提供了理想模板并能在制备过程中防止微粒的团聚。通过对表面活性剂参与的不同纳米材料制备方法的论述,探讨了纳米材料在制备过程中的形成原理及表面活性剂在此中所起的不同作用。

The subject of nanotechnology has developed into a one which is literally of muti-subject characteristic and in need of the combination and coordination with the knowledges and technologies from other scientific fields.In respect of the application in nanotechnology especially in the preparation of nanomaterals,surfactant as a convenient and effective assistant has gotten itself notable and remarkable status and given the excellent exhibition of highly and deeply latent potentiality in the application.It is...