超疏水、自清洁氟化石墨改性不锈钢网的油水分离研究

doi:10.11949/0438-1157.20200864

摘要/Abstract

摘要：

采用环氧树脂和氟化石墨（FG）纳米片对200目（75 μm）、300目（50 μm）和400目（37.5 μm）不锈钢网进行表面修饰改性，制备出具有超疏水、自清洁性能的氟化石墨改性钢网。正己烷-水、二氯甲烷-水、正癸烷-水、间二甲苯-水及柴油-水混合物可在自身重力下迅速通过氟化石墨改性钢网实现分离，且分离效率均在99.89%以上。同时，氟化石墨改性不锈钢网还具有良好的重复使用性能和机械耐久性能，在循环使用100次以及外力作用下磨损100次后，仍保持良好的超疏水性能。

关键词: 膜, 表面, 氟化石墨, 超疏水, 油水分离, 稳定性

Abstract:

Epoxy resin and fluorinated graphite (FG) nanosheets were used to modify the surface of 200 mesh(75 mm), 300 mesh(50 mm) and 400 mesh(37.5 mm) stainless steel meshes to prepare fluorinated graphite modified steel meshes with superhydrophobic and self-cleaning properties. The mixture of hexane/water, dichloromethane/water, decane/water, toluene/water and diesel/water can be quickly separated by the FG modified steel mesh under its own gravity, and the separation efficiency is above 99.89%. At the same time, the fluorinated graphite modified stainless steel mesh also has good reusability and mechanical durability. After 100 cycles of recycling and 100 times of wear under the action of external force, it still maintains good superhydrophobic properties.

Key words: film, surface, fluorinated graphite, superhydrophobic, oil-water separation, stability

中图分类号:

TQ 028.8

雷然, 王嘉柔, 赵颂, 王志. 超疏水、自清洁氟化石墨改性不锈钢网的油水分离研究[J]. 化工学报, 2021, 72(2): 1191-1201.

LEI Ran, WANG Jiarou, ZHAO Song, WANG Zhi. Study on oil-water separation of superhydrophobic and self-cleaning fluorinated graphite modified stainless steel mesh[J]. CIESC Journal, 2021, 72(2): 1191-1201.

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