Surface behavior of hydrophilic silica nanoparticle-SDS surfactant solutions: I. Effect of nanoparticle concentration on foamability and foam stability

详细信息    查看全文

• 作者：Hamid Vatanparast^a ; Aslan Samiee^b ; Alireza Bahramian^a ; ^{abahram@ut.ac.ir} ; Aliyar Javadi^a ; ^{javadi.aliyar@ut.ac.ir} ; ^{aliyar.javadi@mpikg.mpg.de}
• 关键词：Foamability ; Surface activity ; Surface tension ; Elasticity ; Laplacian shape ; Silica nanoparticle ; SDS surfactant
• 刊名：Colloids and Surfaces A: Physicochemical and Engineering Aspects
• 出版年：2017
• 出版时间：5 January 2017
• 年：2017
• 卷：513
• 期：Complete
• 页码：430-441
• 全文大小：2930 K
• 卷排序：513

文摘

The tensiometry and foam experiments shed light on the surface behavior of SDS-hydrophilic silica nanoparticle dispersions. The surface tension and the foam properties of SDS solutions are considerably improved in presence of silica particles. The surface adsorption of nanoparticles can be evaluated by applying high amplitude compressions/expansions protocols. Standard deviation of drop shape from Laplacian form is a powerful tool for evaluation of complexes structure at interface.