Preparation and characterization of solvent-resistant polyimide/ceramic composite membrane

doi:10.16085/j.issn.1000-6613.2015.11.026

Abstract

Abstract: New kind of copolymides(PI-BTDA/MDA/Bz) have been synthesized by the reaction of 3, 3', 4, 4'-benzophenonetetracarboxylic dianhydride(BTDA), 4, 4'-diaminodiphenyl methane(MDA) and 4, 4'-diaminodiphenyl p-diaminodiphenyl(Bz) according to a certain molar ratio. Four kinds of polymide homogeneous membranes with different chemical structures were prepared through adjusting the proportion of MDA and Bz. The contact angles of the polyimide homogeneous membranes were tested with deionized water, while the swelling property was investigated in N, N-dimethylformamide. The results showed that the homogeneous membranes have the best hydrophilicity and optimal solvent-resistant performance while the molar ratio of BTDA/MDA/Bz was 5:4:1. Using this polyamide acid as casting solution, a polyimide composite membrane was prepared on Al₂O₃ ceramic membrane as support, which has a pore size of 0.2μm. And the influence of concentration and temperature of feed on the separation performance were investigated.

Key words: polymerization, membrane, pervaporation, polyimide/ceramic composite membrane, wastewater treatment

摘要： 采用3,3',4,4'-二苯酮四羧酸二酐(BTDA)、4,4'-二氨基二苯基甲烷(MDA)和4,4'-二氨基联苯(Bz)按一定比例共聚合成了一类新的共聚型聚酰亚胺(PI-BTDA/MDA/Bz),通过调整MDA和Bz的比例制备了4种具有不同化学结构的聚酰亚胺均质膜,测试了这些聚酰亚胺均质膜对水的接触角和在N,N-二甲基甲酰胺中的溶胀性。实验结果表明:BTDA、MDA、Bz的摩尔比为5:4:1时,所得的聚酰亚胺均质膜亲水性最好,且耐溶剂性能最优。以此比例的聚酰胺酸为铸膜液,0.2mm孔径的Al₂O₃陶瓷膜片为支撑体,制备了聚酰亚胺复合膜,并考察了进料温度和进料浓度对复合膜分离性能的影响。

关键词: 聚合, 膜, 渗透蒸发, 聚酰亚胺/陶瓷复合膜, 废水处理

CLC Number:

TQ311
TQ323

YAO Zhengping. Preparation and characterization of solvent-resistant polyimide/ceramic composite membrane[J]. Chemical Industry and Engineering Progree, 2015, 34(11): 3990-3994,4000.

姚正平. 耐溶剂聚酰亚胺/陶瓷复合膜的制备及性能表征[J]. 化工进展, 2015, 34(11): 3990-3994,4000.

References

[1] 沈秋月,羌宁. 有机溶剂回收技术的研究[J]. 四川环境,2006,25(6):101-105.

[2] 陈镇,秦培勇,陈翠仙. 渗透汽化和蒸汽渗透技术的研究、应用现状及发展[J]. 膜科学与技术,2003,23(4):103-109.

[3] Vandezande P,Gevers L E M,Vankelecom I F J. Solvent resistant nanofiltration:Separating on a molecular lever[J]. Chem. Soc. Rev.,2008,37:365-405.

[4] 秦琳,李继定,郑冬菊,等. 新型侧链型聚酰亚胺膜的制备及其渗透汽化分离性能[J]. 化工学报,2013,64(2):590-599.

[5] Kahya S,Solak E K,Sanli O. Sodium alginate/poly(vinyl alcohol) alloy membranes for the pervaporatio,separation of dimetheylformamide/water mixtures:A comparative study[J]. Vacuum,2010,84(9):1092-1102.

[6] Vanherck K,Vandezande P,Aldea S O,et al. Cross-linked polyimide membranes for solvent nanofiltration in aprotic solvents[J]. Journal of Membrane Science,2008,320(1):468-476.

[7] See Toh Y H,Lim F W,Livingston A G. Polymeric membrane for nanofiltration in polar aprotic solvents[J]. Journal of Membrane Science,2007,301(1):3-10.

[8] Fang B,Pan K,Meng Q H,et al. Preparation and properties of polyimide solvent-resistant nanofiltration membrane obtained by a two-step method[J]. Society of Chemical Industry,2011,61(1):111-117.

[9] 李焱,于俊荣,刘兆峰. 聚酰胺酸的合成及其酰亚胺化研究[J]. 合成纤维,2005(4):6-9.

[10] Matsuura T,Hasuda Y,Nishi S,et al. Polyimide derived from 2,2'-bis(trifluoromethyl)-4,4'-diaminobiphenyl. Ⅰ. Synthesis and characterization of polyimides prepared with 2,2-bis(3,4- dicarboxyphnyl)hexafluoropane dianhydride or pyromellitic dianhydride[J]. Macromolecules,1991,24(18):5001-5005.

[11] 马其达. 耐溶剂聚酰亚胺纳滤膜的制备与性能研究[D]. 北京:北京化工大学,2009.

[12] Qi R B,Wang Y J,Li J D,et al. Pervaporation separation of alkane/thiophene mixtures with PDMS membrane[J]. Journal of Membrane Science,2006,280(1-2):545-552.

[13] 关岚. 亲水性聚合物/水混合体系结构和性质的研究[D]. 天津:天津大学,2010.

[1]	ZHANG Zuoqun, GAO Yang, BAI Chaojie, XUE Lixin. Thin-film nanocomposite (TFN) mixed matrix reverse osmosis (MMRO) membranes from secondary interface polymerization containing in situ grown ZIF-8 nano-particles [J]. Chemical Industry and Engineering Progress, 2023, 42(S1): 364-373.
[2]	WANG Ying, HAN Yunping, LI Lin, LI Yanbo, LI Huili, YAN Changren, LI Caixia. Research status and future prospects of the emission characteristics of virus aerosols in urban wastewater treatment plants [J]. Chemical Industry and Engineering Progress, 2023, 42(S1): 439-446.
[3]	QIAN Sitian, PENG Wenjun, ZHANG Xianming. Comparative analysis of forming cyclic oligomers via PET melt polycondensation and cyclodepolymerization [J]. Chemical Industry and Engineering Progress, 2023, 42(9): 4808-4816.
[4]	LI Xuejia, LI Peng, LI Zhixia, JIN Dunshang, GUO Qiang, SONG Xufeng, SONG Peng, PENG Yuelian. Experimental comparation on anti-scaling and anti-wetting ability of hydrophilic and hydrophobic modified membranes [J]. Chemical Industry and Engineering Progress, 2023, 42(8): 4458-4464.
[5]	WANG Baoying, WANG Huangying, YAN Junying, WANG Yaoming, XU Tongwen. Research progress of polymer inclusion membrane in metal separation and recovery [J]. Chemical Industry and Engineering Progress, 2023, 42(8): 3990-4004.
[6]	CHEN Junjun, FEI Chang’en, DUAN Jintang, GU Xueping, FENG Lianfang, ZHANG Cailiang. Research progress on chemical modification of polyether ether ketone for the high bioactivity [J]. Chemical Industry and Engineering Progress, 2023, 42(8): 4015-4028.
[7]	XU Jie, XIA Longbo, LUO Ping, ZOU Dong, ZHONG Zhaoxiang. Progress in preparation and application of omniphobic membranes for membrane distillation process [J]. Chemical Industry and Engineering Progress, 2023, 42(8): 3943-3955.
[8]	PAN Yichang, ZHOU Rongfei, XING Weihong. Advanced microporous membranes for efficient separation of same-carbon-number hydrocarbon mixtures: State-of-the-art and challenges [J]. Chemical Industry and Engineering Progress, 2023, 42(8): 3926-3942.
[9]	LU Shijian, LIU Miaomiao, YANG Fei, ZHANG Junjie, CHEN Siming, LIU Ling, KANG Guojun, LI Qingfang. Gas-liquid two-phase flow and mass transfer characteristics in an improved CO₂ wet-wall column [J]. Chemical Industry and Engineering Progress, 2023, 42(7): 3457-3467.
[10]	FENG Jianghan, SONG Fang. Research progress of anion exchange membrane water electrolysis cells [J]. Chemical Industry and Engineering Progress, 2023, 42(7): 3501-3509.
[11]	CHEN Xiangli, LI Qianqian, ZHANG Tian, LI Biao, LI Kangkang. Research progress on self-healing oil/water separation membranes [J]. Chemical Industry and Engineering Progress, 2023, 42(7): 3600-3610.
[12]	REN Zhongyuan, HE Jinlong, YUAN Qing. Research progress on intercrystalline defects control and remediation technologies for zeolite membranes [J]. Chemical Industry and Engineering Progress, 2023, 42(5): 2454-2463.
[13]	ZHAO Yao, ZHOU Zhihui, WU Hongdan, HU Chuanzhi, ZHANG Guochun, WU Ruipeng. Response surface analysis and optimization of membrane permeation vaporization by Silicalite-1 molecular sieve [J]. Chemical Industry and Engineering Progress, 2023, 42(5): 2586-2594.
[14]	LI Huahua, LI Yihang, JIN Beichen, LI Longxin, CHENG Shao’an. Research progress of Anammox bio-electrochemical coupling wastewater treatment system [J]. Chemical Industry and Engineering Progress, 2023, 42(5): 2678-2690.
[15]	SUN Luqin, LU Huixia, WANG Jianyou. Separation of lysozyme from egg white by electrodialysis with ultrafiltration membrane(EDUF) process [J]. Chemical Industry and Engineering Progress, 2023, 42(5): 2262-2271.