膜科学与技术

Position：Home >> Abstract

Hydrophobic modification and characterization of Al2O3 membrane

Authors： TONG Zhi, DONG Xu-juan, WANG Sai, LI Hai-hong

Units： School of Environmental and Chemical Engineering, Xi’an Polytechnic University, Xi’an 710048, China

KeyWords： Al2O3 membrane, diethoxy dimethyl silane, hydrophobic modification

ClassificationCode：X781.5

year,volume(issue):pagination： 2014,34(6):62-66

Abstract：

Hydrophobic Al2O3 membrane can be prepared by adding diethoxy dimethyl silane (DDS) through sol-gel method using aluminum isopropoxide as raw material. Influence of DDS content on the structure and properties of the Al2O3 membrane were studied. Structure, wettability, thermal stability and surface morphology of hydrophobic Al2O3 membrane were analyzed by infrared spectroscopy(IR), contact angle, thermogravimetric analysis(TG-DTG) and atomic force microscope (AFM). The results show that the hydrophobic group-CH3 of Al2O3 membrane surface is rich when the optimal content of DDS is 5%, and the membrane has good hydrophobicity with 118° contact angle; as the temperature increased, the hydrophobic properties of the membrane reduced, the reason lied in the decreasing of hydrophobic -CH3, so the optimum sintering temperature is 200℃; the membrane surface has slight roughness.

Funds：

国家自然科学基金资助项目（21103132）；陕西省教育厅产烽化培育项目（2103JC15）；陕西省科技厅科技统筹项目（2013KTCQ03-20）

AuthorIntro：

同帜（1963-），男，陕西省户县人，高级工程师，从事抗污染型无机瓷膜的制备、改性与支撑体的结合研究。

Reference：

[1] Pileni M. P. Reverse micelles as microreactors[J]. J, Phys Chem, 1993, 97(27):6961-6973.
[2] 尤朝阳, 刘志寅, 黄刚华等. 抑制 MBR 膜污染强化技术研究[J]. 水处理技术, 2012, 38(2): 6-10.
[3] 黄霞, 曹斌, 文湘华等. 膜-生物反应器在我国的研究与应用新进展[J]. 环境科学学报, 2008, 28(3): 416-432
[4] 李大川, 同帜, 陈方方等. 二氧化硅凝胶的疏水改性及表征[J]. 膜科学与技术, 2011, 31(5): 29-33.
[5] 柯威, 高能文, 李梅等. 疏水性Al2O3膜表面的化学稳定性[J]. 南京工业大学学报(自然科学版), 2011, 32(6): 45-49.
[6] 余桂郁，杨南如. 溶胶-凝胶法简介第三讲溶胶-凝胶法工艺过程[J]. 硅酸盐通报, 1993, 6: 60-66.
[7] 田辉, 杨泰生, 陈玉清等. SiO2超疏水薄膜的制备和性能表征[J]. 化学进展, 2008, 27(9): 1435-1438.
[8] 同帜, 韩丹丹, 李大川等. 溶剂中乙醇含量对Al2O3膜的影响[J]. 硅酸盐通报, 2012, 31(1): 198-201.
[9] 黄月文, 刘伟区, 罗广建等. 超疏水涂膜的研究进展[J]. 高分子材料科学与工程, 2008, 24(11): 13-16.

Service：

【Download】【Collect】

《膜科学与技术》编辑部 Address: Bluestar building, 19 east beisanhuan road, chaoyang district, Beijing; 100029 Postal code; Telephone：010-80492417/010-80485372; Fax：010-80485372 ; Email：mkxyjs@163.com