Effect of process conditions of interfacial polymerization on performance of reverse osmosis composite membrane

QIU Shi; WU Liguang; ZHANG Lin; CHEN Huanlin; GAO Congjie

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Effect of process conditions of interfacial polymerization on performance of reverse osmosis composite membrane

更新时间：2025-12-10

- Effect of process conditions of interfacial polymerization on performance of reverse osmosis composite membrane
- CIESC Journal Issue 8, Pages: 2027-2034(2008)
- 作者机构：
  
  1. 浙江大学材料与化工学院,浙江,杭州,310027
  2. 浙江工商大学环境科学与工程学院,浙江,杭州,310035
  3. 国家液体分离膜工程技术研究中心,浙江,杭州,310012
- 作者简介：
- 基金信息：
- DOI：
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- Online First：05 August 2008，
  
  Published：05 August 2008
- 稿件说明：
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QIU Shi, WU Liguang, ZHANG Lin, et al. Effect of process conditions of interfacial polymerization on performance of reverse osmosis composite membrane[J]. CIESC Journal, 2008, (8): 2027-2034.
DOI：

QIU Shi, WU Liguang, ZHANG Lin, et al. Effect of process conditions of interfacial polymerization on performance of reverse osmosis composite membrane[J]. CIESC Journal, 2008, (8): 2027-2034. DOI：

摘要

以聚砜超滤膜为支撑膜，间苯二胺(MPD)为水相功能单体，均苯三甲酰氯(TMC)为油相功能单体，通过界面聚合法制备了反渗透复合膜。研究了功能单体浓度、界面聚合反应时间、界面聚合成膜后热处理时间和温度等条件对复合膜分离性能的影响;并对在水相中添加相转移催化剂对复合膜分离性能的影响和相转移催化机理进行了初步探讨。首先在单因素实验条件下确定工艺条件的优化范围，然后经过正交实验得到最佳工艺条件，实验结果表明，油相中TMC浓度为3 g8226;L-1、水相中MPD浓度为20 g8226;L-1、界面聚合反应时间为30 s、界面聚合成膜后热处理温度为90 ℃、后处理时间15 min时，所制备的反渗透复合膜表现出良好的分离性能，通量达14.91 L8226;m-28226;h-1，截留率为0.951(测试条件: 压力1.6 MPa

温度25 ℃

NaCl浓度20000 mg8226;L-1);当水相中MPD浓度较低时，加入适量的相转移催化剂，能有效地改善膜的分离性能。

Abstract

Reverse osmosis composite membrane was prepared by interfacial polymerization (IP) of metaphenylene diamine (MPD) with trimesoyl chloride (TMC) on the surface of polysulfone (PS) support.The effects of monomers concentration

reaction time of IP

time and temperature of heat treatment on the separation performance of composite membranes were investigated.The influences of phase-transfer catalyst (PTC) on the separation performance of composite membrane were also studied

and the mechanism of reaction process was discussed.From the orthogonal experiment results

the optimum conditions were the concentration of TMC and PMD 3 g8226;L-1

20 g8226;L-1 respectively

and the temperature and time of heat treatment 90 ℃ and 15 min

and the flux of 14.91 L8226;m-28226;h-1 as well as rejection of 0.951 (pressure 1.6 MPa

temperature 25℃

concentration of NaCl 20000 mg8226;L-1) were obtained under these conditions.In addition

it was found that at a low concentration of MPD

the separation performance of composite membrane could be remarkably improved by adding PTC into the water phase.

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