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首页> 外文期刊>Journal of Applied Polymer Science >Preparation of Reverse Osmosis Composite Membrane with High Flux by Interfacial Polymerization of MPD and TMC
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Preparation of Reverse Osmosis Composite Membrane with High Flux by Interfacial Polymerization of MPD and TMC

机译：MPD与TMC界面聚合制备高通量反渗透复合膜。

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摘要

In this study, reverse osmosis (RO) composite membrane with extra-thin separation layer was prepared by the interfacial polymerization (IP) of metaphenylene diamine (MPD) with trimesoyl chloride (TMC) on the surface of polysulfone (PS) support membrane. The properties and structures of skin layer of RO composite membranes were characterized by FTIR and SEM, it was found that IP had occurred and the separation layer was formed. The effects of the monomer concentration on membrane flux and salt rejection were investigated, and the optimum concentration of MPD and TMC were 2 and 0.3% (w/v), respectively. To improve flux, the phase-transfer catalyst was added to the water phase, and the effects were remarkable when the concentration of MPD was low, in which both salt rejection and flux increased by 20% than initial results. When some of the hydrophilic additives such as alcohols and phenols were added into water phase, the flux of the prepared membrane increased from 13.03 to 33.42 L/(m2 h) without loss in salt rejection.
机译：在这项研究中，通过间苯二胺（MPD）与均苯三甲酰氯（TMC）在聚砜（PS）支撑膜表面上的界面聚合（IP），制备了具有超薄分离层的反渗透（RO）复合膜。用FTIR和SEM对RO复合膜的表层特性和结构进行了表征，发现存在IP，形成了分离层。研究了单体浓度对膜通量和脱盐率的影响，MPD和TMC的最佳浓度分别为2％和0.3％（w / v）。为了提高通量，将相转移催化剂添加到水相中，当MPD浓度低时，除盐率和通量均比初始结果增加20％，效果显着。当将某些亲水性添加剂（例如醇和酚）添加到水相中时，制得的膜通量从13.03增加到33.42 L /（m2 h），而不会损失盐分。

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