纤维素基超疏水纸的研究进展

Research Progress in Superhydrophobic Cellulose-based Papers

从制备方法角度概述了纤维素基超疏水纸的研究现状,重点介绍了化学改性法、物理化学改性法、表面涂布法和纳米粒子改性法,同时介绍了超疏水纸在油水分离和微流体装置中的最新应用,对pH、温度和光照具有智能响应性超疏水表面的开发,以及超疏水纸表面力学性能和耐酸碱腐蚀性能的改善。使用廉价、绿色生物聚合物研制多功能、性能优异的超疏水纸产品是未来的发展方向,材料学、聚合物化学、纳米技术和机械学多学科理论知识的综合运用,是实现超疏水表面突破性发展的关键,也是满足工业化生产要求迫切需要解决的难题。

This review begins with a brief introduction of superhydrophobic surfaces from the perspective of contact angle models, the highlight is put on the development of preparation methods and functionality of superhydrophobic cellulose-based paper materials. The main preparations include physical methods, chemical-physical methods, surface coating, nanoparticles deposition. For the purpose of protecting the environment and reducing the preparation cost, studiers attempt to construct superhydrophobic cellulose-based paper materials with fluorine-free, green and sustainable biopolymers to replace the traditional polymers containing silicon and fluorine. Many efforts are spending on improving mechanical durability and corrosion resistance of surface structure, research on superhydrophobic surface with flame retardancy, oil/water separation ability and sensibility to temperature, ultraviolet and pH are also conducted. Finally our outlook focuses on the necessity to make a breakthrough in creating the novelcoating systems that require a multidisciplinary approach with backgrounds in material science, polymer chemistry, nanotechnology and mechanical sciences that meet industrial production requirements.