Fabrication of superhydrophobic Fe2O3/Fe3O4 composite surface on N80 substrate

International Conference on Manufacturing Technology, Materials and Chemical Engineering

材料科学;化学工业

He, S.J.^1 ; Cao, X.F.^1 ; Hu, J.^1

School of Chemical Engineering, Northwest University, Xi'an

710069, China^1

关键词: Composite surface;    Hierarchical structures;    Micro-nano structures;    Self-cleaning properties;    Super-hydrophobic surfaces;    Superhydrophobic;    Superhydrophobicity;    Water contact angle;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/592/1/012019/pdf
DOI  :  10.1088/1757-899X/592/1/012019

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Fe2O3/Fe3O4 composited film with micro-nano structures is prepared on the surface of N80 steel. The Fe2O3/Fe3O4 composited film after modification with stearic acid shows great superhydrophobicity with a water contact angle of 157.3° and sliding angle of 8.1°. Furthermore, the superhydrophobic Fe2O3/Fe3O4 composited film can keep anti-wettability when it is immersed in the water and make water droplets keep sphere on it. Furthermore, the superhydrophobic surface also shows excellent self-cleaning property. Our work finds that annealing in the atmosphere after egg white burning can produce nanoneedle structures perpendicular to the micro-octahedron, which plays a significant role to make micro-nano hierarchical structures for Fe2O3/Fe3O4 composite film.