Hydrophobic and oleophobic functional film and preparation method thereof

Abstract

The invention relates to a hydrophobic and oleophobic functional film and a preparation method thereof. The hydrophobic and oleophobic functional film specifically consists of a base film (1), a hydrophobic and oleophobic layer (2), an adhesive layer (3) and a release layer (4), wherein the hydrophobic and oleophobic layer is arranged on one side of the base film; the adhesive layer and the release layer are sequentially arranged on the other side of the base film; a preparation process of the hydrophobic and oleophobic layer comprises the following steps: with ethanol as a solvent, preparinga graphene oxide ethanol solution with the concentration of 2mg / mL, adjusting pH to 9 by using ammonia water, adding a perfluorinated long-chain silane coupling agent, and refluxing at 60 DEG C for 24h, wherein the mass ratio of the perfluorinated long-chain silane coupling agent to graphene oxide is 1:1; soaking the base film in the solution for 5h, and then taking out, and performing forced airdrying; then soaking the base film in 100ml of an aqueous hydrazine hydrate solution, and reducing at 80 DEG C for 2h, wherein the volume ratio of hydrazine hydrate to water is 1:30. The protective film has relatively good protection against water stains and oil stains, and can achieve a good effect of protecting a substrate operating table surface of mechanical equipment.

Description

technical field [0001] The invention belongs to the field of functional materials and mechanical equipment, and in particular relates to a hydrophobic and oleophobic functional film and a preparation method thereof. Background technique [0002] During the actual production and use of mechanical equipment, the operating table of the substrate is often subject to various wear or pollution. For example, sometimes tools scratch the table and reagents pollute the table. Patent CN101114605A reports that an aluminum oxide protective film is set on the substrate workbench Abrasion resistance can be improved. But in fact, the wear and tear on the operating table is far more than these, such as water stains dripping on the table and causing it to rust, oil dripping on the table is difficult to wipe, and so on. [0003] Generally speaking, the liquid can wet the surface of the material (the contact angle is 0-90°), which is called hydrophilic or lipophilic surface; if the liquid cann...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the disadvantage that the operation table of mechanical equipment is easily polluted by water and oil stains during actual use, and propose a hydrophobic and oleophobic functional film and its preparation method

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