Preparation method of steel-based super-hydrophobic coating

The invention discloses a preparation method of a steel-based super-hydrophobic coating, and particularly relates to a method for preparing a super-hydrophobic coating with self-repairing and photo-thermal properties on a steel substrate by using a polydopamine microcapsule. The method comprises the...

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Bibliographische Detailangaben
Hauptverfasser:	LI XINYI, TAN XINYU, LI HAO, SU HAOQIANG, XIONG XINLANG, JIANG LIHUA, LIN XIANG, XIAO TING, WU YAHUI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADHESIVES APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL CHEMICAL PAINT OR INK REMOVERS CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING DYES FILLING PASTES INKS MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS POLISHES PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SOLDERING OR UNSOLDERING SPRAYING OR ATOMISING IN GENERAL TRANSPORTING USE OF MATERIALS THEREFOR WELDING WOODSTAINS WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	The invention discloses a preparation method of a steel-based super-hydrophobic coating, and particularly relates to a method for preparing a super-hydrophobic coating with self-repairing and photo-thermal properties on a steel substrate by using a polydopamine microcapsule. The method comprises the following steps: (1) constructing a large-size cavity structure on the steel surface by using a laser ablation method; and (2) coating the obtained rough surface with PDA microcapsules wrapped with ODTMS (octadecyl trimethoxysilane) by using a dip-coating method. A preparation method of the PDA microcapsule comprises the following steps: ultrasonically dispersing ODTMS in an alkaline solution, then adding dopamine hydrochloride (DA-HCl), and heating in a water bath; the super-hydrophobic coating obtained by the method has good photo-thermal characteristics. 本发明公开了一种钢基超疏水涂层的制备方法，利用聚多巴胺微胶囊在钢基体上制备具有自修复与光热性能的超疏水涂层的方法。该方法包括(1)利用激光烧蚀法在钢表面构造大尺寸空腔结构和(2)采用浸涂法在所得粗糙表面涂敷包裹十八烷基三甲氧基硅烷（ODTMS）的PDA微胶囊。上述PDA微胶囊的制备方法如下：将ODTMS超声分散在碱性