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首页> 外文期刊>RSC Advances >Poly(butylene succinate-co-terephthalate) nanofibrous membrane composited with cyclodextrin polymer for superhydrophilic property
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Poly(butylene succinate-co-terephthalate) nanofibrous membrane composited with cyclodextrin polymer for superhydrophilic property

机译：环糊精聚合物复合聚丁二酸丁二酯-对苯二甲酸对苯二甲酸乙二醇酯纳米纤维膜的超亲水性

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摘要

Tailoring the wetting properties of nanofibrous membranes and endowing them with expected wettability provides new ways in extending the application field of these materials. In this study, we first performed the in situ fabrication of poly(butylenes succinate-co-terephthalate) (PBST) composite nanofibrous membrane with cyclodextrin polymer (CDP) using a combination of electrospinning and heating processes. Then, the morphologies, crystallization and mechanical properties of the PBST composite membrane were investigated. It was found that the CDP was uniformly dispersed on the PBST nanofibers instead of merely covering the surface of the membrane. Moreover, the introduction of additives brought about a decreased crystallinity and tensile strength of the resultant membrane due to its restraining role in the crystallization of PBST. Furthermore, the wettability of the PBST composite membranes with various amounts of additives was explored and the evolution of water spread on top of the membranes was also recorded. The membrane became superhydrophilic from hydrophobic upon increasing the amount of additives and the water droplet could completely spread within 0.2 s, which was attributed to the enlarged roughness and increased contact area of CDP on the nanofibers. A comparison between the two fabrication methods used for PBST composite nanofibrous membranes is also presented and studies on the preparation and wetting properties may shed light on polymer composite membranes that exhibit potential application in more fields.
机译：调整纳米纤维膜的润湿性能并赋予其预期的润湿性，为扩展这些材料的应用领域提供了新的途径。在这项研究中，我们首先结合结合使用环戊二烯聚合物（CDP）进行聚琥珀酸丁二酯-对苯二甲酸对苯二甲酸乙二酯（PBST）复合纳米纤维膜的原位制备。静电纺丝和加热过程。然后，研究了PBST复合膜的形貌，结晶和力学性能。发现CDP均匀地分散在PBST纳米纤维上，而不是仅仅覆盖膜的表面。此外，添加剂的引入由于其在PBST的结晶中的抑制作用而导致所得膜的结晶度和拉伸强度降低。此外，探索了PBST复合膜与各种添加剂的润湿性，并记录了水在膜顶部的散布情况。随着添加剂量的增加，膜从疏水性变为超亲水性，水滴可以在0.2 s内完全散开，这归因于CDP在纳米纤维上的增大的粗糙度和增加的接触面积。还介绍了用于PBST复合纳米纤维膜的两种制造方法之间的比较，并且有关制备和润湿性能的研究可能会揭示在更多领域具有潜在应用前景的聚合物复合膜。

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