State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, PR China.
J Colloid Interface Sci. 2012 May 15;374(1):89-95. doi: 10.1016/j.jcis.2012.01.051. Epub 2012 Feb 4.
In this paper, we report a facile way to fabricate biomimetic high performance optical hybrid films with excellent antireflective and antifogging properties by one-step spin-coating the mixture of mesoporous SiO(2) particles and SiO(2) sol. The production process of the films is easy, low-cost, and time-efficient. Mesoporous SiO(2) particles containing surfactants disperse in SiO(2) sol stably without any chemical modification, which decrease the effective refractive index and increase the transmittance of the films. In addition, such films possess superhydrophilic properties and exhibit high performance antifogging properties. Due to the good film forming performance of SiO(2) sol, mesoporous SiO(2) particles are embedded in the films and impart the films high mechanical stability and durability. The surface morphology of the films can maintain well after repeated friction, and the performances of antireflective and antifogging also do not change as well.
本文报道了一种简便的方法，通过一步旋涂法制备具有优异的减反和防雾性能的仿生高性能光学杂化膜，其混合物由介孔二氧化硅粒子和二氧化硅溶胶组成。该膜的制备过程简单、成本低、耗时少。含有表面活性剂的介孔二氧化硅粒子在二氧化硅溶胶中稳定分散，无需任何化学修饰，降低了有效折射率，提高了薄膜的透光率。此外，这种薄膜具有超亲水性能，表现出优异的防雾性能。由于二氧化硅溶胶良好的成膜性能，介孔二氧化硅粒子被嵌入薄膜中，赋予薄膜高机械稳定性和耐久性。薄膜的表面形貌在反复摩擦后仍保持良好，其减反和防雾性能也没有变化。
