SiO<sub>2</sub>膜的孔径调节及疏水改性

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Abstract Using ethyl orthosilicate as precursors, the pore size of the SiO₂ membrane was increased by adding PAA, and the hydrophobicity was modified by the method of polymer solution precipitation phase transformation. The thermal stability, chemical composition, phase composition, specific surface area and pore size distribution, surface morphologies and hydrophobicity of the samples were analyzed by the method of TG-DTG, IR, XRD, AFM, BET and contact angle measurements. The results show that the optimum PAA adding amount is 10% (volume ratio), and the pore size is up to 53.73 nm after sintering at 800 ℃. With increasing the PAA adding amount, the pore size of SiO₂ membrane increases, but when the adding amount reaches 15% (volume fraction), sintering at 800 ℃, the membrane surface begins to appear crack. The contact angle of the SiO₂membrane after hydrophobicity modification can increase to 113°. The pore size of the modified SiO₂ membrane is obviously smaller after hydrophobically modified, it is because that the DDS coating on the membrane surface blocks the pore. It can be concluded that when the PAA is added in an amount between 10% and 15% and the sintering temperature is 600 ℃, the membrane with good hydrophobicity can be obtained.

Key words： sol-gel hydrophobically modifie SiO₂inorganic ceramic membrane pore size

Received: 05 January 2018 Published: 12 July 2019

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	TONG Zhi
	JI Liangliang
	GAO Tingting
	WANG Jiayue
	LIU Ting

Cite this article:

TONG Zhi,JI Liangliang,GAO Tingting, et al. Pore diameter adjusting and hydrophobic modification of SiO₂ film[J]. Materials Science and Engineering of Powder Metallurgy, 2018, 23(4): 382-388.

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http://pmbjb.csu.edu.cn/EN/ OR http://pmbjb.csu.edu.cn/EN/Y2018/V23/I4/382

[1] 同帜, 樊露, 胡敏盾, 等. 聚丙烯酸对纳米SiO₂薄膜性能的影响[J]. 材料科学与工程学报, 2017, 35(3): 389-393.
TONG Zhi, FAN Lu, HU Mindun, et al.The effects of polyacrylic acid on the properties of nano SiO₂ films[J]. Journal of Materials Science and Engineering, 2013, 35(3): 389-393.
[2] 高能文. 陶瓷膜表面疏水改性对过滤性能的影响[C]// 第四届中国膜科学与技术报告会论文集, 2010, 20(10): 440-443.
GAO Nengwen.Ceramic membrane surface of hydrophobic modification effect the performance of the filter[C]// The 4th China Report on Membrane Science and Technology, 2010, 20(10): 440-443.
[3] SONG K M, HONG W H.Dehydration of ethanol and isopropanot using tubular type Cellulose acetate membrane with ceramic support in pervaporation process[J]. Journal of Membrane Seience, 1997, 123(4): 27-33.
[4] NOOIJEN W, MUILUIJ K.Water separation by ceramic microfiltration[J]. Filtrsep, 1994, 31(2): 227-229.
[5] 刘学文, 黄宝圣, 单长青, 等. 陶瓷膜分离技术及其在造纸黑液处理中的应用[J]. 中国环境管理干部学院学报, 2008, 18(3): 69-71, 77.
LIU Xuewen, HUANG Baosheng, SHAN Changqing, et al.Separation technology of ceramic membrane and its application in papermaking black liquor treatment[J]. Journal of China Environmental Management Cadre Academy, 2008, 18(3): 69-71, 77.
[6] SIMMS K M, LIU T H, ZAIDI.S.A.Recent advances in the application of memberance technology to the treatment of produced water in Canada[J]. Water Treat, 1995, 10(8): 135-144.
[7] 康军. 无机陶瓷膜分离技术在大型化工装置的应用[J]. 河北化工, 2007, 30(9): 20-21, 28.
KANG Jun.Application of inorganic ceramic membrane separation technology in large scale chemical plant[J]. Hebei Chemical Industry, 2007, 30(9): 20-21, 28.
[8] 汪勇, 唐书泽, 欧仕益, 等. 无机陶瓷膜分离技术在食品与发酵工业中的应用[J]. 食品与发酵工业, 2003, 29(8): 75-79.
WANG Yong, TANG Shuze, OU Shiyi, et al.Application of inorganic ceramic membrane separation technology in food and fermentation industry[J]. Food and Fermentation Industries, 2003, 29(8): 75-79.
[9] 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.
LI Dachuan, TONG Zhi, CHEN Fangfang, et al.Hydrophobic modification and characterization of silica gel[J]. Membrane Science and Technology, 2011, 31(5): 29-33.
[10] 韦奇, 李健林, 宋春林, 等. 憎水二氧化硅膜的制备、表征及水热稳定性研究[J]. 无机材料学报, 2004, 19(2): 417-423.
WEI Qi, LI Jianlin, SONG Chunlin, et al.Preparation, characterization and hydrothermal stability of hydrophobic silica film[J]. Journal of Inorganic Materials, 2004, 19(2): 417-423.
[11] 陈红燕, 江雷. 受生物启发特殊浸润表面的设计和制备[J]. 生命科学, 2008, 6(3): 323-330.
CHEN Hongyan, JIANG Lei.Design and preparation of specially invasive surface inspired by biology[J]. Li Science of Life Sciences, 2008, 6(3): 323-330.
[12] 谢毅, 陶海征. 疏水薄膜研究现状及展望[J]. 建材发展导向, 2006, 2(3): 41-44.
XIE Yi, TAO Haizheng.Research status and prospect of hydrophobic film[J]. Guide to Building Materials, 2006, 2(3): 41-44.
[13] 郝艳霞, 李健生, 杨绪杰, 等. Al₂O₃-ZrO₂复合膜的制备与表征[J]. 无机化学学报, 2002, 18(3): 245-248.
HAO Yanxia, LI Jiansheng, YANG Xujie, et al.Preparation and characterization of Al₂ O₃ -ZrO₂ composite films[J]. Journal of Inorganic Chemistry, 2002, 18(3): 245-248.
[14] 章德玉, 刘有智, 谢五喜. PVA修饰的溶胶-凝胶法制备γ-Al₂O₃超滤膜的研究[J]. 膜科学与技术, 2007, 27(2): 34-38.
ZHANG Deyu, LIU Youzhi, XIE Wuxi.PVA modified sol-gel method for the preparation of γ-Al₂O₃ ultrafiltration membrane[J]. Membrane Science and Technology, 2007, 27(2): 34-38.
[15] 国家标准化管理委员会. GB 8978—1996污水综合排放标准[S]. 北京: 中国标准出版社, 1996.
National Standardization Administration of China. GB 8978—1996 Integrated wastewater discharge standard[S]. Beijing: China Standard Press, 1996.
[16] 刘梦, 金正宇, 赵晓宏, 等. 2015年中国城镇污水处理厂达标排放评估[J]. 环境工程, 2017, 35(10): 77-81, 90.
LIU Meng, JIN Zhengyu, ZHAO Xiaohong, et al.Evaluation of standard emissions of urban sewage treatment plants in China in 2015[J]. Environmental Engineering, 2013, 35(10): 77-81, 90.
[17] 樊璐, 同帜, 陈方方, 等. 溶胶凝胶法制备TiO₂-SiO₂复合薄膜及特性表征[J]. 粉末冶金技术, 2017, 35(2): 89-93.
FAN Lu, TONG Zhi, CHEN Fangfang, et al.Preparation of TiO₂-SiO₂ composite film and characterization by sol-gel method[J]. Powder Metallurgy Technology, 2013, 35(2): 89-93.
[18] 刘丽萍. 多点BET法计算比表面积的相对压力取值范围[J].中国粉体技术, 2014, 20(4): 68-73.
LIU Liping.Calculation of the relative pressure of specific surface area by the multi-point BET method[J]. China Powder Technology, 2014, 20(4): 68-73.
[19] 孙盈盈, 胡星宇, 张欣向, 等. 含氢硅油表面改性SiO₂疏水增透膜的制备及其表征[J]. 硅酸盐学报, 2017, 45(1): 150-156.
SUN Yingying, HU Xingyu, ZHANG Xin, et al.Preparation and characterization of modified SiO₂ hydrophobic membrane on the surface of hydrogen-containing silicone oil[J]. Journal of Silicate, 2015, 45(1): 150-156.
[20] 王鹏, 徐守萍, 程江, 等. POSS基杂化含氟丙烯酸酯共聚物涂膜的表面相分离与疏水性研究[J]. 高分子学报, 2017, 8(4): 133-140.
WANG Peng, XU Shouping, CHENG Jiang, et al.Surface phase separation and hydrophobicity of POSS hybrid fluorinated acrylate copolymer coating[J]. Polymer Journal, 2017, 8(4): 133-140.