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首页> 外文期刊>Journal of industrial and engineering chemistry >A novel membrane on pervaporation performance for dehydration of Caprolactam solution
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A novel membrane on pervaporation performance for dehydration of Caprolactam solution

机译：一种新型的渗透膜，用于己内酰胺溶液的脱水

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摘要

Konjac glucomannan (KGM) is a kind of polysaccharide with wide applications, except in pervaporation (PV). This article focuses on the new function of KGM and simultaneously improving a new dehydration process for e-CaproIactam (CPL). KGM was cross-linked with glutaraldehyde (GA) at proportions of 0.3, 0.5, and 0.7 wt%. Cross-linked membranes were characterized by scanning electron microscope, Fourier transform-infrared, and X-ray diffraction to assess the membranes of morphology, intermolecular interactions, and observe the effects of cross-linking on crystallinity, respectively. Cross-linked KGM as the active layer of the composite membranes has the net matrix structure, and many characteristics improved compared with pure KGM. Data showed that KGM cross-linked with GA displayed good swelling and PV performance, and the composite membranes had superior separation performances in dehydrating the CPL solution. The highest separation factor could reach 3531. The study provided a new way for both KGM application and CPL dehydration.
机译：魔芋葡甘露聚糖（KGM）是一种除渗透蒸发（PV）外具有广泛用途的多糖。本文着重介绍KGM的新功能，同时改善e-CaproIactam（CPL）的新脱水工艺。 KGM与戊二醛（GA）的交联比例为0.3、0.5和0.7 wt％。通过扫描电子显微镜，傅立叶变换红外和X射线衍射对交联的膜进行表征，以评估膜的形态，分子间相互作用，并观察交联对结晶度的影响。交联的KGM作为复合膜的活性层具有净基质结构，与纯KGM相比，许多特性得到了改善。数据显示，与GA交联的KGM具有良好的溶胀和PV性能，复合膜在CPL溶液脱水中具有优异的分离性能。最高分离因子可达到3531。该研究为KGM应用和CPL脱水提供了新途径。

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