CAJ | 학술논문

通过静电纺丝技术，以聚乙烯醇(PVA)与戊二醛为原料制得聚乙烯醇纳米纤维薄膜(PVA-NF膜)。先在酸性条件下，使该薄膜交联成非水溶性的纳米纤维薄膜(c-PVA-NF膜)，而后在碱性条件下，先将环氧氯丙烷与膜反应，将环氧丙基键合到膜上，继而将β-环糊精与环氧基反应修饰到膜表面，制备出具有选择吸附性能并可重复利用的纳米纤维材料（c-PVA-β-CD-NF膜）。通过傅里叶变换红外光谱仪、扫描电子显微镜表征，确定所制得膜表面已成功键合上β-环糊精，且键合前后膜表面形态无明显变化。本文以酚酞为探针，用于检测c-PVA-β-CD-NF膜对其溶液的吸附行为，用紫外分光光度检测所制得的c-PVA-β-CD-NF膜对酚酞的吸附效率。实验表明，相对于未修饰的c-PVA-NF膜，c-PVA-β-CD-NF膜对酚酞的吸附能力显著增强，并在30 min达到吸附平衡，最大吸附量为88 mg/g。
통과정전방사기술，이취을희순(PVA)여무이철위원료제득취을희순납미섬유박막(PVA-NF막)。선재산성조건하，사해박막교련성비수용성적납미섬유박막(c-PVA-NF막)，이후재감성조건하，선장배양록병완여막반응，장배양병기건합도막상，계이장β-배호정여배양기반응수식도막표면，제비출구유선택흡부성능병가중복이용적납미섬유재료（c-PVA-β-CD-NF막）。통과부리협변환홍외광보의、소묘전자현미경표정，학정소제득막표면이성공건합상β-배호정，차건합전후막표면형태무명현변화。본문이분태위탐침，용우검측c-PVA-β-CD-NF막대기용액적흡부행위，용자외분광광도검측소제득적c-PVA-β-CD-NF막대분태적흡부효솔。실험표명，상대우미수식적c-PVA-NF막，c-PVA-β-CD-NF막대분태적흡부능력현저증강，병재30 min체도흡부평형，최대흡부량위88 mg/g。
Polyvinyl alcohol (PVA) and glutaraldehyde were used as the materials to prepare PVA nanofiber membrane by electro-spinning technique. Under acidic condition, the membrane was crosslinked into water-stable nanofibrous mats, then in alkaline condition, the epoxy chloropropane reacted with the membrane and the epoxypropyl was bonded to the membrane surface. Consequently, the Beta-cyclodextrin (β-CD) reacted with epoxy group modification on the surface membrane to prepare the nanofiber material with absorption selectivity and recyclability. Fourier transform infrared spectrometer and scanning electron microscopy characterization were used to demonstrate that the membrane surface had been successfully bonded with beta-cyclodextrin (β-CD) and there was no obvious change of membrane surface morphology after the bonding. In the essay, phenolphthalein was used as the probe to detect the c-PVA-β-CD-NF membrane adsorption effect of its solution and the UV spectrophotometry was used to detect the absorption efficiency of the c-PVA-β-CD-NF membrane to phenolphthalein. The experiments show that the adsorption capacity on phenolphthalein of the c-PVA-β-CD-NF membrane was stronger than that of the PVA membrane significantly, it was at 30 min that the adsorption reached the state of equilibrium and the maximum adsorption capacity was 88 mg/g.