膜科学与技术

Position：Home >> Abstract

Discussion on the construction of intermediate layer and the properties of reverse osmosis composite membrane

Authors： LI Wenyuan1, LYU Xiaolong1, 2, REN Kai1, GU Jie1, ZHANG Huiying1

Units： 1. State Key Laboratory of Membrane Separation and Membrane Process, College of Materials Science and Engineering, Institute of Biochemical Engineering, Tiangong University, 2. State Key Laboratory of Membrane Materials and Membrane Applications, Tianjin Motimo Membrane Technology Co., Ltd.

KeyWords： reverse osmosis membrane; interfacial polymerization; membrane flux; intermediate layer

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2024,44(5):150-155

Abstract：

In this paper, polyvinyl chloride (PVC) ultrafiltration base membrane was prepared, and through the reaction of polyamines (diethylenetriamine-DETA and piperazine-PIP) and polyacids (itaconic acid-IA, maleic anhydride-MAH and citric acid-CA), intermediate layer of base membrane surface was formed, reverse osmosis (RO) composite membrane was prepared by interfacial polymerization (IP) of m-phenylenediamine (MPD) and trimesoyl chloride (TMC) and the effects of DETA/IA reaction times of polyamines/polyacids (DETA/CA, DETA/MAH, DETA/IA and PIP/IA) on the properties of interlayer and RO film were discussed. It is shown from the result that, at 50 ℃, for the RO composite membrane prepared by 3 mol/L diethylenetriamine and 0.5 mol/L itaconic acid through reaction for 4 times on the surface of the base membrane, the desalination rate for 1 800 mg/L sodium chloride water solution was 97.58% at 2.0 MPa pressure and water flux was 34.8 L/(m2·h·MPa). Compared with the blank control RO membrane, the water flux increased by 41.3%. Therefore, the method of constructing intermediate layer provides a theoretical basis for the preparation of high-flux RO composite membranes.

Funds：

国家重点研发计划( 2023YFB3810500)

AuthorIntro：

李文远(1998-),男，天津市人，硕士生，研究方向为分离膜制备与应用.*通讯作者,E-mail：13920286131@163.com

Reference：

［1］吕晓龙,杜启云.新型反渗透复合膜\[J\].水处理技术,1989(5):16-21.
\[2\]吕晓龙,武春瑞,张昊,等.NIPS法聚偏氟乙烯超滤膜的制备与应用\[J\].中国工程科学,2014,16(12):35-45.
\[3\]Wang J J, Yang H C, Wu M B, et al. Correction: Nanofiltration membranes with cellulose nanocrystals as an interlayer for unprecedented performance\[J\]. J Mater Chem A,2018,5:16289-16295.
\[4\]Karan S,Jiang Z,Livingston A G. Sub10 nm polyamide nanofilms with ultrafast solvent transport for molecular separation\[J\]. Science, 2015, 348(6241):1347-1351.
\[5\]Wang M, Dong W, Guo Y,et al.Positively charged nanofiltration membranes mediated by a facile polyethyleneimine-Noria interlayer deposition strategy\[J\].Desalination, 2021,513:114836.
\[6\]Zhao W, Liu H, Liu Y, et al. Thin-film nanocomposite forward-osmosis membranes on hydrophilic microfiltration support with an intermediate layer of graphene oxide and multiwall carbon nanotube\[J\]. ACS Appl Mater Interfaces, 2018, 10(40):34464-34474.
\[7\]王晨霞，杨庆,陈欣,等.芳香聚酰胺反渗透复合膜界面聚合影响因素分析\[J\].应用化工,2021,50(4):1056-1059.
\[8\]赵岩雨,张瑜,宋向菊,等.中间层调控聚酰胺复合膜的研究进展\[J\].膜科学与技术, 2021, 41(6):226-235.
\[9\]刘治宇. 套管式气隙膜蒸馏组件设计与实验研究\[D\]. 天津: 天津工业大学,2018.
\[10\]Ma R H, Lu X L, Wu C R, et al. Performance design of a highly anti-fouling porous membrane with dual pHresponsiveness\[J\]. J Membr Sci, 2022,660: 120886.
\[11\]谢颂京. 复合反渗透膜的制备研究\[D\]. 天津:天津工业大学, 2017.
\[12\]张文才. 高效聚酰胺复合反渗透膜的制备及性能研究\[D\].北京:北京化工大学,2020.
\[13\]Chien N Z,Jye L W, Chun W K,et al.Improving properties of thin film nanocomposite membrane through polyethyleneimine intermediate layer: A parametric study\[J\].Sep Purif Technol, 2021, 274:119035.

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