Effect of colloidal particleson the foamability and stabilization of aqueous foams by cationic surfactant CTAB

1st International Conference on Frontiers of Materials Synthesis and Processing

材料科学;化学

Cao, Huiying^1 ; Chen, Jiayi^1 ; Cai, Jie^1 ; Li, Yapin^2

School of Information and Engineering, Guangdong Medical University, Zhanjiang

524023, China^1

School of Electrical Engineering and Automation, Jiangsu Normal University, Xuzhou

221116, China^2

关键词: Air water interfaces;    Aqueous foams;    Cetyl trimethyl ammonium bromides;    Colloidal particle;    Foam stabilization;    Foamability;    Particle surface;    Surface activation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/274/1/012025/pdf
DOI  :  10.1088/1757-899X/274/1/012025

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Colloidal particles can influence the foamability and stabilization of aqueous foam by addition of surfactant at the air-water interface. This occurs because particles are activated via the interaction with surfactant and are adsorbed onto the surfaces of foams. This phenomenon has been applied extensively to the development of new materials and techniques. Whether particle surface can be activated or not is decided by the interaction between the surfactant and the particle. In this work, we studied the effects of cationic surfactant CTAB (cetyltrimethylammonium bromide) on PS (polystyrene), SiO2, and TiO2particles in aqueous solution, and compared the difference in their surface activation according to foam volume of the particles/CTAB/water system, and the degrees of foamability and foam stabilization. In addition, the influence of anionic surfactant SDS (sodium dodecyl sulfate) on the surface activation of PS in aqueous solution was also analyzed and compared with that of CTAB.