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What are the factors affecting the future development of aluminum coatings?

Posted time:2021-12-13 Page View:264

Looking at the future development from coatings, weather aluminum alloy building profiles are important performance indicators, but due to the differences in their use environment, geography, etc., you can use different standards. Door and window aluminum door and window materials, the material connected to the wall. Its main feature is that the surface where it meets the wall is mostly flat, which is fixed on the wall and cannot be moved. Home decoration aluminum belongs to the coating technology. It adds pre-plating and electroplating process steps on the basis of the conventional titanium plating process. The pre-plating process is to place the activated plating parts in an aqueous solution of salt and hydrochloric acid for chemical treatment. Due to the combination of curtain wall technology and technology, intelligent curtain walls, such as solar photovoltaic curtain wall, ventilation duct breathing curtain wall, wind and rain induction intelligent curtain wall, etc., will show the unique charm of the building. Therefore, the paint can be selected in a targeted manner.

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Polymers made of acrylic materials and their main esters as raw materials have high weather resistance, which is mainly determined by the company's monomers. It is formed by the study of polymerization methods and has its own strong stability to the light environment. If no monomer is selected properly, the coating film will have excellent gloss retention. Compared with the polymer network formed by the polycondensation reaction, this kind of influence resin has much better weather resistance. As a coating company like China, it must also have excellent corrosion resistance. The key is to form the cross-linking of the coating film. Using hexamethoxymethyl melamine as the cross-linking agent, there is a kind of management in the curing and film-forming process. Very good cross-linking, so that the coating film has high hardness, gloss, color (non-yellowing) and excellent weather resistance. In recent years, the emergence of cathodic electrophoretic coatings with better light resistance is also a good choice for us. Its corrosion resistance is better. It is a polypolyamine resin system structure and uses IPDI (isophorone isocyanate) or fat The crosslinking agent made of tri-isocyanate has excellent weather resistance and can be directly made into CED. With CED, there is no need to consider the use of industrial aluminum profile oxidation, because in the process of electrodeposition technology, the electrophoretic analysis behavior is toward and the cathode, the oxide film will be destroyed by different parts of students or all information, but there are still many aspects of this traditional coating. Excellent corrosion resistance and weather resistance, many people even think that this should be the development trend of my country's construction engineering field.


Regarding the coating method, electrodeposition is an ideal method to be advantageously automated production, with high production efficiency, up to 95% coating efficiency (generally 82% for the production of aluminum anodic electrophoretic coatings, which reduces the main For the performance of the viscosity efficiency and anti-interference), the stable film quality produced, the film is formed by ED, which is the method of electrostatic force, the high current density of the coating part, the formation of thin film resistance increases , The adjacent part that is not formed and the high current density flow part, thus continue the coating, so that all parts of the workpiece are formed by high resistance, then the coating does not extend ED no longer thicken time, contour tank The geometry of the coating on the site to obtain a uniform film thickness, called ED throwing rate performance complex, and in the corrosion resistance such as RESIS, Meng Qingxiang has also been improved.