Metallic copper anticorrosion nano coating and preparation method thereof

Abstract

The invention discloses a metallic copper anticorrosion nano coating. The coating is composed of, by weight parts, 2-4 parts of oxidized polyethlene wax, 1-2 parts of natrii demercaptopancsulfonas, 2-3 parts of phthalic anhydride, 10-14 parts of vinyl trimethoxy silane, 200-300 parts of citric acid solution with a concentration of 1.8-2 g / l, 13-17 parts of silane coupling agent KBM5103, 100-110 parts of tetraethoxysilane, 30-37 parts of hexafluorobutyl acrylate, 0.1-0.14 part of azodiisobutyronitrile, 5-7 parts of ammonia water with a concentration of 20-25%, 4-5 parts of ferroferric oxide, 2-3 parts of nano calcium phosphate, 0.2-0.4 part of polyoxyethylene castor oil, 3-5 parts of diacetone alcohol and 0.1-0.2 part of lithium naphthenic acid. According to the metallic copper anticorrosion nano coating, hybrid coating surfaces of various morphologies can be formed; and through the coating surfaces which are of different structures and vinyl groups which have low surface energy and are exposed outside, the coating has superhydrophobic characteristics.

Description

technical field [0001] The invention relates to the technical field of metal anticorrosion, in particular to a metal copper anticorrosion nano-coating and a preparation method thereof. Background technique [0002] In recent years, with the enhancement of people's awareness of environmental protection, traditional metal coating protection or surface treatment methods are facing severe challenges. For example, although electroplating can form a uniform and dense protective layer, the electroplating process will generate a lot of waste water, waste gas and waste residue , which contains highly toxic substances such as heavy metal chromium and cyanate, which poses a serious threat to the environment; and the metal surface phosphating treatment technology, the sediment and phosphate produced by the phosphating process are likely to cause rich oxidation of water quality, nitrite, Water pollution by heavy metal ions also requires new surface treatment methods. In recent years, ne...

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Problems solved by technology

However, even the smooth solid surface with the lowest surface energy has a contact angle with water of only 119°, therefore, superhydrophobic surfaces cannot be obtained only by reducing the surface energy.