A kind of marine anti-corrosion inorganic coating and preparation method thereof

Abstract

The invention relates to a marine anti-corrosion inorganic coating and a preparation method thereof. The marine anti-corrosion inorganic coating comprises a beta-dicalcium silicate ceramic layer formed on a base material. In the marine anti-corrosion inorganic coating and the preparation method thereof, the beta-dicalcium silicate ceramic layer is hardened when making contact with water to form C-S-H gel, the later-period strength is large, dicalcium silicate is low in hydration heat, small in air shrinkage, resistant to temperature, resistant to freezing, good in size stability, resistant tochemical erosion and good in abrasion resistance, and thus the marine anti-corrosion inorganic coating can protect marine facilities such as ship bodies for a long time to prevent the marine facilities from being corroded.

Description

technical field

[0001] The invention relates to a marine anti-corrosion inorganic coating and a preparation method thereof, belonging to the field of inorganic material marine anti-corrosion. Background technique

[0002] The ocean covers about 70.9% of the earth's surface, and the navigation and marine industries have become an important pillar of the world's economic development. Corrosion is one of the main causes of damage and scrapping of various infrastructure and industrial equipment. Seawater is a strong natural corrosive medium, containing Na + 、K + , Ca 2+ , Mg 2+ , Cl - , CO 3 2- , SO 4 2- Plasma, with a salt concentration as high as 3.5wt%, rich in oxygen, coupled with the impact of waves and sunlight, the marine corrosion environment is extremely harsh. Any marine engineering materials, especially metal structural materials, will be corroded to varying degrees in the marine environment. Metal materials are mainly used in ships and marine engineering s...

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