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Preparation and Characterization of a Hydrophilic Polymer-Ceramic Composite Membrane

Authors： YUAN Gaoming, Dong Guoguang, GAO Yu, CHEN Zhi, LI Jianming

Units： 1. School of Chemical Engineering, Sichuan University, Chengdu 610065, China;2. PetroChina Urumqi, Urumqi 830019, China

KeyWords： polymer-ceramic composite membrane; preparation; characterization

ClassificationCode：TQ208.8

year,volume(issue):pagination： 2012,32(2):19-23

Abstract：

The hydrophilic polymer-ceramic composite membranes were prepared by grafting polyacrylic acid onto activated surfaces of alumina substrates, such as homogeneous alumina membranes and asymmetric alumina membranes with different pore sizes. It is shown from the results of characterization including analysis of IR, XPS, SEM, and the water contact angle of the surface that the PAA-Al2O3 composite membrane is successfully prepared. The permeation flux experiments of pure ethanol or pure water and the dewatering separation tests of the 95wt% ethanol were done with the composite membranes prepared. And it is shown from the experimental data that most suitable ceramic membrane substrate for a PAA-Al2O3 composite membrane is the homogeneous alumina substrate with pore sizes of 2-3 μm, and the separation factor of the PAA-Al2O3 composite membrane made with it is 139.33 and the permeation flux is 0.61 kg•m－2•h－1. The high separation efficiency and great membrane flux are achieved by using the PAA-Al2O3 composite membrane.

Funds：

中国成达专项研究奖学金资助

AuthorIntro：

袁高明（1985-），男，江苏人，四川大学化工学院硕士生。

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