低成本新型多孔陶瓷膜支撑体的制备及性能

doi:10.11896/cldb.19120155

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Abstract The composite inorganic ceramic membrane supports with loess and fly ash as aggregate, carboxymethyl cellulose (CMC) as binder, methacrylic acid methyl ester (PMMA) as pore forming agent were prepared by extrusion-molding and solid particle sintering method. The effects of PMMA addition on the structure and properties of the support were systematically studied. The crystal phase, microscopic morphology, porosity, pore size distribution, flexural strength, acid-base corrosion rate and pure water permeability of ceramic supports were characterized by testing methods such as X-ray diffraction (XRD), scanning electron microscopy (SEM), mercury intrusion method, three-point bending method, mass loss method, self-made pure water flux measurement device. Results indicate that with PMMA increasing, the porosity, pure water flux and acid-base corrosion rate increase gradually, and the flexural strength decrease gradually. The low-cost high-performance composite inorganic ceramic membrane support with pure water permeability of 3 165.13 L/(m²·h·MPa), porosity of 26.43%, average pore diameter of 4.88 μm, compressive strength of 27.33 MPa, and the acid/alkaline corrosion rate of 1.15%/1.10% can be fabricated under the optimized conditions: sintering temperature of 1 130 ℃, holding time of 2.5 h, PMMA addition of 8%.

Key words： PMMA loess fly ash ceramic membrane support

Published: 23 March 2021

CLC number:

TQ174.1

Fund:Key Research and Development Projects of Shaanxi Provincial Science and Technology Department (2017GY-128, 2018ZDXM-SF-094, 2020ZDLNY06-09).

About author:: Zhi Tong obtained his B.E. degree from the Xi'an Poly-technic University and served in School of Environment and Chemical Engineering Department till now. He is currently a professor-level senior engineer and master supervisor. He is mainly engaged in the teaching and research of water pollution control, environmental microbiology, pollution control chemistry, environmental chemistry, new environmental materials, environmental instrument analysis, water resources environmental investigation, etc. His team's research interests are new inorganic ceramic membrane support body research and development and performance research, inorganic membrane preparation and performance research, membrane assembly design and application in sewage treatment, application of MBR membrane separation technology in printing and dyeing wastewater, etc. He has been responsible for a number of sewage treatment projects, National Natural Science Funds, Science and Technology Department of Shaanxi Province, Xi'an Science and Technology Bureau, Education Department of Shaanxi Province and Research Projects entrusted by enterprises. He has won two se-cond prizes of the National Science and Technology Progress Award, three first prizes of the Ministerial Science and Technology Progress Award, three second prizes of the Science and Technology Progress Award, two third prizes of the Municipal Science and Technology Progress Award, and one national invention award. He has published more than 90 journal papers and trained more than 40 graduate students.

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	TONG Zhi
	HUANG Kaipei
	YANG Bowen
	ZHANG Jianxu

Cite this article:

TONG Zhi,HUANG Kaipei,YANG Bowen, et al. Preparation of New Low-cost Porous Ceramic Membrane Support and Its Properties[J]. Materials Reports, 2021, 35(6): 6054-6059.

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http://www.mater-rep.com/EN/10.11896/cldb.19120155 OR http://www.mater-rep.com/EN/Y2021/V35/I6/6054

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