Open AccessPreparation of Silicon Carbide hollow fiber Membrane in Low Temperature by Precursor Pyrolysis
Author(s) -
Man Xu,
Mengke Guan,
Shulin Wang,
Mengyu Wu
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/768/2/022061
Subject(s) - silicon carbide , materials science , sintering , membrane , composite material , ceramic , silicon , pyrolysis , phase (matter) , layer (electronics) , molding (decorative) , chemical engineering , fiber , metallurgy , organic chemistry , chemistry , biochemistry , engineering
The silicon carbide (SiC) powder is covered with polycarbosilane (PCS), N-Methyl pyrrolidone (NMP) is a solvent, polyethersulfone (PES) is a bonding aid, using phase-phase and solid-phase sintering process combined with a step-by-step molding to prepare a symmetrical structure of silicon carbide hollow fibers, and determine the membrane’s perforation and purification and purity of the water distribution and the circumference of the membrane. The results show that the SiC membrane tube is a finger-hole structure layer-spongy structure layer-finger-hole structure structure, the optimal sintering temperature is at 1200 °C, the size of the prepared ceramic membrane aperture is concentrated in about 0.9 μm, and the pure water flux is 2.832m 3 / (m 2 ⋅h).