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采用两种不同方法在不锈钢基底上制备出不同形貌的Fe_2O_3阵列薄膜,测试了其对液体的润湿性能。结果表明,Fe_2O_3多级结构阵列薄膜比Fe_2O_3纳米棒阵列薄膜表现出更好的润湿性能。Fe_2O_3多级结构阵列薄膜接触角变小,极性力变大,表面自由能增加。而Fe_2O_3纳米棒阵列薄膜接触角变大,色散力减小,表面自由能降低。与Fe_2O_3多级结构阵列相比,Fe_2O_3纳米棒阵列的纳米棒之间具有更多小的纳米尺寸的缝隙空间,使得较多的空气滞留其中,而空气具有很好的异质性,因此Fe_2O_3纳米棒阵列薄膜的润湿性相对较差。
Fe_2O_3 films with different morphologies were prepared on stainless steel substrates by two different methods and their wettability to liquids was tested. The results show that the Fe_2O_3 multi-layer structure films exhibit better wettability than the Fe_2O_3 nanorod arrays. Fe 2 O 3 multi-level structure of the array film contact angle becomes smaller, the polar force becomes larger, the surface free energy increases. However, the contact angles of Fe 2 O 3 nanorod array films become larger, the dispersion force decreases and the surface free energy decreases. Fe_2O_3 nanorod array has more small nanosize gap space between the nanorods compared with the Fe_2O_3 multi-level array structure, so that more air is trapped in the air while the air has good heterogeneity. Therefore, Fe_2O_3 nanometer Rod array films have relatively poor wettability.