Radiator inner paint film and preparation method thereof

Abstract

The invention discloses a radiator inner paint film and a preparation method thereof. The inner paint film is formed through solidification after inner paint is coated, wherein the inner paint comprises the following raw materials in parts by weight: 30 to 70 parts of tung oil, 30 to 50 parts of lecithin, 100 to 300 parts of porous particles, 50 to 200 parts of shell powder, 100 to 300 parts of polyacrylic acid resin, 10 to 30 parts of dispersing agent and 20 to 70 parts of solidifying agent; the porous particles comprises core-shell particles, glass flakes and organosilicone resin; and the porous particles are particles which have a porous structure and are formed by filling the glass flakes with the core-shell particle and coating the glass flakes with the organosilicone resin. The innerpaint is solidified into the film to be attached to a radiator so as to avoid direct contact of circulating water and an aluminum alloy matrix; after compound use of the porous particles and other raw materials, the radiator inner paint film has anti-corrosion effect and high water resistance, is nonhazardous, has a certain antibacterial effect and has a strong adhesive force on the aluminum alloy matrix.

Description

technical field [0001] The invention relates to the technical field of radiators, in particular to a paint film inside a radiator and a preparation method thereof. Background technique [0002] With the rapid growth of my country's national economy, the income of residents has increased year by year, and living standards and housing conditions have been further improved. Die-cast aluminum heating radiators are widely used in northern regions due to their large heat dissipation surface area, high thermal efficiency, and comfortable temperature. Radiators are divided into radiation radiators and convection radiators according to the heat exchange method. The convection heat dissipation of convection radiators accounts for almost 100%, sometimes called "convectors"; and radiation cooling, sometimes called "radiators". The safety performance of the radiator is the most important. There are many factors related to the safety performance. Among them, the working pressure of the r...

AI Technical Summary

Problems solved by technology

[0003] At present, the inner surface of the die-casting aluminum heating radiator is mainly made of polyester powder coating. Although the technology is mature and the process is simple, it is suitable for mass production, but there are problems in the process of use. The interior of the die-casting aluminum heating radiator is affected by high temperature for a long time. After a long time, the surface of the coating is easy to gradually change color or peel off the coating; if the coating is thin, the surface temperature of the die-casting aluminum heating radiator will be high, and if the coating is thick, the heat dissipation effect will be affected; compared with surface treatment, interior paint Treatment is more important, because the inner paint film plays a role of isolation and protection for the base material of the radiator, so the quality of the inner paint film will directly affect the service life of the radiator

If the formula or ratio of the inner paint film is improper, serious paint accumulation, air bubbles, and peeling will occur, and the corrosion of steel or aluminum by alkali, salt, dissolved oxygen, bacteria, and sand in boiler water cannot be avoided. The purpose of prolonging the service life of the radiator