摘要
以聚醚砜超滤膜为基膜,哌嗪(PIP)为水相单体,均苯三甲酰氯(TMC)为有机相单体,采用界面聚合法制备了复合纳滤膜,扫描电镜、表层的红外分析结果表明在基膜表面聚合了一层聚酰胺膜,膜性能测定结果表明膜表面荷负电,对不同无机盐的截留率为Na2SO4>MgSO4>MgCl2>NaCl。界面聚合条件对膜性能的影响表明,最佳聚合条件为:PIP浓度0.5%～2%,TMC浓度0.15wt%～0.75wt%,聚合时间≥1min,热处理温度60℃～80℃,时间15 min左右。
Thin film composite membranes for nanofihration were fabricated through interracial polymerization. The membranes were prepared on the support of polyethersulfone（PES） uhrafiltration membranes with piperazine（PIP） as aqueous monomer and trimesoyl chloride （TMC） as organic monomer. The surface structure and chemical composition were analyzed by scanning electron microscope（ SEM ） and Fourier transform infrared spectrophotometry（FTIR）. The results revealed that a thin layer composed of polyamide was formed on the support. Experiment results of membrane performance showed that the membrane was negatively charged and the salts rejection order was Na2 SO4 〉 MgSO4 〉 MgCl2 〉 NaCl. The optimum polymerization conditions were PIP concentration 0. 5 % - 2 %, TMC concentration 0. 15 wt% - 0. 75 wt%, reaction time ≥ 1 min, curing temperature 60℃ - 80℃, curing time about 15 min.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2010年第4期456-460,共5页
Chemical Research and Application
基金
唐山市科学技术研究与发展计划课题(07160213B)资助
河北省科学技术研究与发展计划项目(07275113)资助
关键词
哌嗪
均苯三甲酰氯
界面聚合
聚醚砜超滤膜
复合纳滤膜
piperazine, trimesoyl chloride, interracial polymerization, polyethersulfone ulzrafiltration, thin film composite membrane
