Hydrophobic aluminum electrode anticorrosive coating and preparation method thereof

Abstract

The invention discloses a hydrophobic aluminum electrode anticorrosion coating, which is composed of the following raw materials in parts by weight: 1-2 tetrameric ricinoleate, 3-4 perfluoroalkyl ethyl alcohol, 0.1-0.2 butyltin trioctoate, aluminum Calcium Acid 1‑2, Diphenylimidazoline 0.2‑0.4, Hydroxystearic Acid 0.2‑0.4, Cetyltrimethylammonium Bromide 0.7‑1, Magnesium Sulfate 0.05‑0.06, Benzotriazole 0.06‑ 0.07, octylphenol ethoxylate 1.7‑2, dodecylamine 0.3‑0.5, ethyl orthosilicate 46‑50, n-dodecyl trichlorosilane 0.3‑0.4, zirconium n-propoxide 13‑20, acetyl Ethyl acetate 7‑10, isopropanol 57‑60, silane coupling agent kh56010‑13, tetrabutylammonium bromide 0.1‑0.2. The invention improves the hydrophobic performance of the surface of the finished coating film and improves the corrosion resistance of the electrode through the modification of the n-dodecyl trichlorosilane.

Description

technical field [0001] The invention relates to the technical field of electrode anticorrosion, in particular to a hydrophobic aluminum electrode anticorrosion coating and a preparation method thereof. Background technique [0002] The anti-corrosion of metal coating is one of the important methods of metal anti-corrosion, and the coating itself only plays a passive physical isolation role, that is, to prevent the direct contact between the metal surface and the environmental medium, because there may be some defects (such as micropores) inside the coating ), so the metal cannot be adequately protected. In order to improve its active corrosion resistance, inorganic or organic corrosion inhibitors are added directly or indirectly. The corrosion inhibitor added directly may interact with the coating, reducing the strength of the coating and causing unnecessary waste. The indirect method is mainly to load the corrosion inhibitor through the carrier material to prevent the corr...

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Problems solved by technology

[0004] Regarding the functional modification of mesoporous SiO2 microspheres, some studies have used the method of layer-by-layer self-assembly to form multi-layer polyelectrolytes on the surface of mesoporous SiO2 microspheres. The purpose of controlled release of corrosion agent; but because this modification method is more complicated, it is not easy for industrial production, so the development of simple and novel method of surface modification of mesoporous SiO2 microspheres has become the research direction of people