Journal of the American Ceramic Society, Vol.97, No.10, 3128-3134, 2014
Preparation of Porous Glass-Based Thick Film Using Diffusion-Induced Phase Separation from Scrap Glass
The porous glass thick film was fabricated by the diffusion-induced phase separation and the sintering technique from scrap glass, polyvinylidene fluoride, and dimethylacetamide (DMAc). Pores formed due to the dissolution of DMAc in water. As heat treatment temperature increases, densification of porous glass was gradually enhanced while the pore channels were maintained. Porosity data of similar to 62% and 55% were obtained at 700 degrees C and 800 degrees C, respectively. The pore size diameters were 91.1m (700 degrees C) and 90.8m (800 degrees C) separately. The porous materials showed acid durability partially because flower-like crystals were dissolved in 1M HCl solution. The process reported in this paper provided a simple method to prepare porous glass under one-step calcinations at low temperature and was helpful for the reuse technology of scrap glass.