Electrospun N-Substituted Polyurethane Membranes with Self-Healing Ability for Self-Cleaning and Oil/Water Separation
Electrospun N-Substituted Polyurethane Membranes with Self-Healing Ability for Self-Cleaning and Oil/Water Separation
复制标题
具有自修复能力的静电纺N-取代聚氨酯膜，用于自清洁和油/水分离
DOI：
10.1002/chem.201504340
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发表时间：
2016-01-18
影响因子：
4.3
通讯作者：
Wang, Yanyan
中科院分区：
文献类型：
--
作者：
Fang, Wenyuan;Liu, Libin;Wang, Yanyan
具有特殊功能的膜，如自清洁，特别是用于油/水分离的膜，由于其广泛的应用而引起了人们的广泛关注。但是，它们在损坏后很难回收和再利用。在此，我们提出了一种新的具有自修复能力的N-取代聚氨酯膜的概念来应对这一挑战。通过静电纺丝获得的膜具有自清洁表面，具有优异的自修复能力。重要的是，通过调整膜组成，膜表现出不同的润湿性，用于有效分离油/水混合物和油包水乳液，同时仍显示出自修复能力和抗损伤的耐久性。据我们所知，这是第一个报告，展示了自修复膜的油/水分离，这为先进的油/水分离材料的开发提供了基础研究。
Membranes with special functionalities, such as self-cleaning, especially those for oil/water separation, have attracted much attention due to their wide applications. However, they are difficult to recycle and reuse after being damaged. Herein, we put forward a new N-substituted polyurethane membrane concept with self-healing ability to address this challenge. The membrane obtained by electrospinning has a self-cleaning surface with an excellent self-healing ability. Importantly, by tuning the membrane composition, the membrane exhibits different wettability for effective separation of oil/water mixtures and water-in-oil emulsions, whilst still displaying a self-healing ability and durability against damage. To the best of our knowledge, this is the first report to demonstrate a self-healing membrane for oil/water separation, which provides the fundamental research for the development of advanced oil/water separation materials.