At present, epoxy anticorrosive coatings have occupied a certain share in the field of anti-corrosion. And there is a tendency to gradually replace the thick paste solvent-based epoxy coating. However, there are still some problems that are difficult to solve, as follows:
Solvent-free liquid epoxy anticorrosive paint The film-forming material formed by the reaction of reactive diluent and epoxy resin synergistically with the curing agent is slightly inferior to the solvent-based epoxy coating with higher molecular weight. In addition, the degree of curing reaction of solvent-free epoxy coatings should not be greatly improved, and it is extremely difficult to achieve more than 90%. Therefore, the anti-cathode peeling performance is slightly worse. The solvent-free liquid epoxy anticorrosive paint has no solvent volatilization. After the two components A and B are uniformly mixed during the construction, the reaction begins to occur. As the reaction occurs, the viscosity of the coating rises sharply and cannot be applied in a short period of time, which means that the construction period of the coating is short. Researchers have used a method to delay the reaction rate in order to solve this problem, but this method makes the surface drying time of the coating longer and causes trouble for the construction. That is to say, the contradiction between the construction use period and the dry time has not been solved well. In order to solve the above problems, the use of special equipment, that is, two-component spraying equipment, brings about a problem of large equipment investment, and the special equipment needs to be installed and installed in a fixed place. Many of the anti-corrosion constructions are carried out on site. Therefore, the construction problems caused by the short use period of the paint are still not completely solved.
Concerned about surprises
Label: solvent-free anti-corrosion coating film-forming material relative molecular mass anti-corrosion construction
Previous: It is very important to see the type of curtain rod and the purchase of decorative hardware. Next: The cost performance of common water supply fittings
Steel Products,Metal Supply ,Steel Companies ,Stainless Steel Products
Brick Making Machine Co., Ltd. , http://www.nbtestinginstrument.com