天津工业大学学报2017，Vol.36Issue(5)：1-6,6.DOI:10.3969/j.issn.1671-024x.2017.05.001
5-磺酸-2-氨基苯甲酸改性聚酰胺6平板膜的制备及其性能
Preparation and property of 5-sulfonic acid-2-amino benzoic acid modified polyamide 6 flat membrane
摘要
Abstract
In order to improve the anti-fouling properties of PA6 flat membrane, hydrophilic sulfonic acid groups were introduced into PA6 by copolymerization of a certain amount of 5-sulfonic acid-2-amino benzoic acid(5SAA) and ε-caprolactam. The results of FT-IR,TG and DSC showed that polyamide 6 with sulfonic acid group (SPAmine6-2.5)was successfully obtained. SPAmine6-2.5 flat membranes were prepared by immersion-precipitation method.The effects of different coagulation baths on the film-forming properties,the physical and chemical properties and the resistance to contamination of SPAmine6-2.5 were investigated. The surface chemistry and hydrophilicity of films were analyzed by FT-IR and KRUSS dynamic contact angle measuring instrument. The results showed that the hydrophilicity and anti-fouling ability of the membrane were greatly improved by the introduction of 5SAA. When the coagulation bath with water : ethanol = 74 : 26, the water contact angle of the flat membrane was 50°and the flux was 289.1 L/(m2·h),the recovery rate of pure water was 65%,which was increased by 54% than that of the PA6 flat membrane.关键词
聚酰胺6(PA6)/5-磺酸-2-氨基苯甲酸(5SAA)/平板膜/磺酸基团/亲水性/抗污染性Key words
polyamide 6(PA6)/5-sulfonic acid-2-amino benzoic acid(5SAA)/flat membrane/sulfonic acid group/hy-drophilicity/anti fouling property分类
轻工纺织引用本文复制引用
刘冬青,任庆娟,尹宇航,苗瑞祥..5-磺酸-2-氨基苯甲酸改性聚酰胺6平板膜的制备及其性能[J].天津工业大学学报,2017,36(5):1-6,6.基金项目
天津市科技计划项目(16YFZCSF00330,15PTSYJC00250) （16YFZCSF00330,15PTSYJC00250）
