Water-based inorganic nano-composite silicon resin anticorrosive coating and preparation method thereof

Abstract

The invention relates to the technical field of coatings, in particular to a water-based inorganic nano-composite silicon resin anticorrosive coating and a preparation method thereof. The coating comprises the following components in parts by weight: 60-75 parts by weight of epoxy modified organic silicon resin, 20-40 parts by weight of fluorocarbon elastic emulsion, 25-50 parts by weight of modified nano silicon dioxide sol, 10-20 parts by weight of nano garnet, 5-15 parts by weight of grinding wheel ash, 1-10 parts by weight of a dispersing agent, 1-10 parts by weight of a coalescing agent, 0.5-5 parts by weight of a defoaming agent, 0.5-5 parts by weight of a flatting agent, 0.5-5 parts by weight of a thickening agent and 50-65 parts by weight of deionized water. The water-based inorganic nano-composite silicon resin coating prepared by the invention is rapidly cured at low temperature, so that the coating not only has higher hardness and adhesive force, but also has excellent corrosion resistance, water resistance, stain resistance, impact resistance, wear resistance, heat resistance and weather resistance; and the coating can be widely applied to corrosion prevention of marine buildings and marine equipment.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based inorganic nanocomposite silicone resin anticorrosion coating and a preparation method thereof. Background technique [0002] Covering 70% of the earth's surface, seawater is a highly complex medium that contains almost every element in the periodic table, as well as a wide variety of organisms. Therefore, it is considered the most corrosive natural environment. Marine corrosion is a slow chemical or electrochemical process and is a natural phenomenon. Metallic materials interact with oxygen and water, causing their own inefficiency and destruction. Due to seawater erosion, ships and plant equipment were damaged, and daily life and production suffered serious losses. Although the occurrence of marine corrosion is inevitable, through the study of the corrosion mechanism, effective protection methods can be found, thereby slowing down the speed of marine corrosion ...

AI Technical Summary

Problems solved by technology

However traditional organic coatings contain toxic heavy metals such as chromates, lead and zinc

It not only consumes a large amount of non-renewable energy, but also has a serious adverse impact on the sustainable development of social economy

Moreover, heavy-duty anti-corrosion coatings are completely dependent on imports, which are not only expensive but also complex in construction technology, and there is an urgent need for high-quality domestic alternatives; an innovative and breakthrough technology is needed to solve the marine corrosion problems that cannot be truly solved by traditional micro-current and toxic organic coatings. ; Develop water-based coatings that meet the national environmental protection requirements; solve the current complex construction process of imported coatings, especially the difficulty of completing repair and maintenance of damaged coatings on site

Therefore, in the field of corrosion protection, it is still difficult to research on metal surface coatings that are harmless to the environment and have good shielding properties.