1. Develop waterborne anti-corrosion primer and topcoat for steel structure
Waterborne anti-corrosion primers must solve the problems of idle corrosion and poor water resistance of the substrate.
The proliferation of some new emulsion-free emulsions has fundamentally improved the problem of poor water resistance, and the problem of construction function and application function should be focused on solving in the future.
As a topcoat, it is mainly to improve its decoration and durability under the condition of ensuring the protection function.
2. Develop high solids and solvent-free anti-corrosion coating series
China's products mainly have a large gap with foreign investors in terms of comprehensive strength such as technical level, economic strength, quality assurance system and product reputation, and it is difficult to enter the market.
To this end, efforts should first be made in technology development, especially the development of lead-free and chromium-free anti-rust pigment primers, that is, zinc phosphate and aluminum tripolyphosphate-based anti-rust primers.
3. Develop waterborne zinc-rich primer
Inorganic zinc-rich primers and waterborne inorganic zinc-rich primers are among the long-lasting primers, but they are both solvent-based coatings.
The waterborne inorganic zinc-rich primer based on high-modulus potassium silicate is a high-function anti-corrosion coating with proven development potential.
4. Develop heat-resistant and anti-corrosion coatings for heat exchangers cured at room temperature
Heat exchangers require anti-corrosion coatings that are heat-resistant and thermally conductive. The epoxy amino coating used cures at 120°C and requires multiple coatings, which cannot be used on large installations.
5. Develop coatings that can be cured at room temperature and convenient for application
The key is to find the best balance between the anti-corrosion function, heat transfer function and constructable function of the coating.
6. Develop substitutes for chlorinated rubber series anti-corrosion coatings
Because chlorinated rubber is a single component, convenient construction, excellent water resistance, oil resistance, atmospheric aging resistance, widely used in ships, industrial anti-corrosion and other fields, has a broad market.
However, because the chlorinated rubber is produced using CC1 as a solvent, it destroys the ozone layer. Therefore, industrially developed countries have developed their substitutes. The more successful are the MP chloroether resin series of German BEST company, aqueous chlorinated polyethylene or modified products.
7. Develop scaly anti-corrosion coatings
Mica iron oxide (MIO) has excellent media resistance, atmospheric aging resistance and blocking function, and is widely used in Western Europe as a primer and topcoat.
There is a certain gap between MIO produced in China and foreign products in terms of particle size distribution, diameter to thickness ratio and density. Similar problems exist in the development of glass flake coatings.
8. Develop organic modified inorganic anti-corrosion materials
Foreign applications of organic emulsion modified concrete to improve its strength and media resistance, widely used in the coating of industrial floors.
Among them, epoxy water emulsion (or solvent-based epoxy) has the fastest development, called polymer cement.
