Zhao Hui, Gao Wei-Chen, Li Qing, Khan Muhammad Rafiullah, Hu Guo-Hua, Liu Yang, Wu Wei, Huang Chong-Xing, Li Robert K Y
Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi University for Nationalities, Nanning 530006, China; Guangxi Bossco Environmental Protection Technology Co., Ltd., Nanning, Guangxi 530004, China.
Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China.
Adv Colloid Interface Sci. 2022 May;303:102644. doi: 10.1016/j.cis.2022.102644. Epub 2022 Mar 17.
Even though polyurethane (PU) has been widely applied, its superhydrophobicity is inadequate for certain applications. As such, the development of superhydrophobic polyurethane (SHPU) has recently attracted significant attention, with numerous motivating reports in recent years. However, a comprehensive review that summarizes these state-of-the-art developments remains lacking. Thus, this review aims to fill up this gap by reviewing the recent preparation methods for SHPU based on superhydrophobic theories and principles. Three main types of methods used in promoting the hydrophobicity of PU are emphasized in this review; (1) incorporation of silicide or fluoride to lower the surface energy, (2) creation of micro/nano-scale rough surfaces by electrospinning or grafting of nanoparticles, and (3) integrating the earlier two methods to develop a synergistic approach. Furthermore, this review also discussed the various applications of SHPU in oil spill treatment, protective coating, self-healing materials and sensors.
尽管聚氨酯（PU）已得到广泛应用，但其超疏水性在某些应用中仍显不足。因此，近年来超疏水聚氨酯（SHPU）的开发备受关注，有大量相关报道。然而，目前仍缺乏对这些最新进展进行全面总结的综述。因此，本综述旨在通过基于超疏水理论和原理回顾SHPU的近期制备方法来填补这一空白。本综述重点介绍了用于提高PU疏水性的三种主要方法：（1）引入硅化物或氟化物以降低表面能；（2）通过静电纺丝或纳米颗粒接枝形成微/纳米级粗糙表面；（3）将前两种方法结合起来形成协同方法。此外，本综述还讨论了SHPU在溢油处理、防护涂层、自修复材料和传感器等方面的各种应用。
