A new technique for batch production of tubular anodic aluminum oxide films for filtering applications
Document Type
Article
Publication Date
6-28-2018
Abstract
With larger surface areas and nanochannels for mass delivery and gas diffusion, three-dimensional tubular anodic aluminum oxide (AAO) films have practical advantages over two-dimensional AAO films for medical and energy applications. In this research, we have developed a process for batch production of tubular AAO films using a 6061 Al tube. The tubular AAO films have open nano-channels on both sides, with average pore dimensions of about 60 nm and pore densities of about 108 to 109 pore/cm2. It was found that the porous AAO material with nano-channel structure exhibited dialysis behavior, allowing for liquid/gas exudation through diffusion between the inner and outer surfaces of the tubular AAO films. Ar gas bearing test and aeration test were conducted to find the pressure bearing capacity of tubular AAO films. It was demonstrated that the AAO film with a thickness of 100 ?m can resist an argon pressure up to 8 atm; however, 30 ?m AAO film can only withstand 3 atm of Ar gas. The tubular AAO films with exudation characteristics have the potential for applications in advanced technologies, such as liquid or gas filters, drug delivery, and energy applications.
Recommended Citation
Hun, Chien Wan; Chiu, Yu Jia; Luo, Zhiping; Chen, Chien Chon; and Chen, Shih Hsun, "A new technique for batch production of tubular anodic aluminum oxide films for filtering applications" (2018). College of Health, Science, and Technology. 1001.
https://digitalcommons.uncfsu.edu/college_health_science_technology/1001