DWI an der RWTH Aachen e. V. und Institut für Technische und Makromolekulare Chemie der RWTH Aachen, Pauwelsstr. 8, D-52056 Aachen, Germany.
J Colloid Interface Sci. 2010 May 1;345(1):41-5. doi: 10.1016/j.jcis.2010.01.032. Epub 2010 Jan 18.
A simple method for the preparation of thin, zinc oxide nanoparticle-containing films showing high UV absorption, high transmittance in the visible range (>88%), and water repellence with contact angles of 120 degrees is presented. The films are coated from an emulsion containing the hydrophobic polymer and the nanoparticles. This emulsion was prepared by mixing commercial o/w emulsions used for hydrophobic coatings on textiles with ZnO nanoparticle-containing o/w emulsions. The latter were designed so that the mixed coating formulation could be prepared without breaking. Preparation and properties of the o/w emulsions as well as the final films are elaborated. The performance of hydrophobic and hydrophilic ZnO nanoparticles during preparation and in the final film is evaluated.
本文提出了一种简单的方法来制备含有氧化锌纳米粒子的薄膜，该薄膜具有高紫外线吸收率、可见光范围内的高透过率（>88%）和拒水性（接触角为 120 度）。该薄膜是通过在含有疏水性聚合物和纳米粒子的乳液中涂覆而成的。这种乳液是通过将用于纺织品疏水性涂层的商业 o/w 乳液与含有 ZnO 纳米粒子的 o/w 乳液混合制备而成的。后者的设计使得混合涂层配方可以在不破坏的情况下制备。详细阐述了 o/w 乳液的制备和性质以及最终薄膜的性能。评估了疏水性和亲水性 ZnO 纳米粒子在制备过程中和最终薄膜中的性能。
