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发明公开
CN109126745A 一种用于油水分离的可循环利用的超疏水粉末及制备方法 无效 - 撤回

一种用于油水分离的可循环利用的超疏水粉末及制备方法
摘要：
本发明属于油水分离的技术领域，提供了一种用于油水分离的可循环利用的超疏水粉末及制备方法。该方法先原位水解制备纳米级粗糙度、微米级粒径的包覆磁性MFe2O4的SiO2粉末，然后通过无皂乳液聚合在粉末表面形成一层聚甲基丙烯酸甲酯薄膜，再采用1H,1H,2H,2H‑全氟癸基三氯硅烷进行表面修饰，制得可循环利用的超疏水粉末。与传统方法相比，本发明制备的超疏水粉末，不仅具有良好的超疏水性能，用于油水分离时分离效率高，并且可利用外界磁场控制复合粉末的移动与分离，实现循环利用。
摘要（英）：

The invention belongs to the technical field of oil-water separation, and provides recyclable super-hydrophobic powders for oil-water separation, and a preparation method thereof. The method is characterized in that SiO2 powders with a nanoscale roughness and a microscale particle diameter, which are coated by magnetic MFe2O4, are firstly prepared through in-situ hydrolysis, a layer of polymethylmethacrylate film is formed on the surfaces of the powders through soap-free emulsion polymerization, and surface finishing is carried out through 1H,1H,2H,2H-perfluorodecyl trichlorosilane, so that the recyclable super-hydrophobic powders are obtained. Compared with super-hydrophobic powders prepared through the traditional method, the super-hydrophobic powders provided by the invention have theadvantages that good super-hydrophobic performance is achieved, so that the oil-water separation efficiency is high; and movements and separation of the composite powders can be controlled through anexternal magnetic field, so that the powders are recyclable.

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