Currently, 92% of the world's automotive production uses coatings (ED), 90% of which use cathodic electrocoating (CED). Ford and General Motors, for example, since January 1997, the car body cathodic electrophoresis coating line has been built. The cathode electrophoresis coating lines of these two companies account for 99% of the automobile body coating line; In order to gain competitiveness in various international markets, the company invested in the first automotive body cathode wire in October 1977, and more than 95% of the car body used a cathodic electrophoresis coating line. China's automobile industry applied cathodic electrophoretic paint in the mid-1980s. Today, the Dongfeng car body of the second automobile manufacturer, Volkswagen Santana, as well as Audi, logo and other car bodies use 100% cathodic electrophoretic paint, others such as auto parts. In order to improve the service life of these thin plates, car cages, frames, etc. have also adopted cathodic electrophoretic paints with high corrosion resistance. For example, the newly developed high leveling cathodic electrophoretic coating has been used in automobile manufacturers in the United States. Its representative products are Ed11 thick film cathodic electrophoretic coating of PPG (Pittsburgh Flat Glass Company), Ed12 medium thick film cathodic electrophoretic coating, DuPont ComaxTM thick film or medium thick film cathodic electrophoretic coating. Its main performance improvement is to make paint. The surface roughness of the film is lowered.
Because cathodic electrophoretic coatings have excellent corrosion resistance, permeability and decorative properties, they are not only used in the automotive industry, but also widely used in other industries, and are widely used in other industries. For example, in building materials, fire-resistant doors, steel windows, etc. are coated with a double-coated epoxy cathodic electrophoretic coating with good weatherability, and an acrylic resin-based cathodic electrophoretic coating for steel furniture and partition materials. In the hardware industry, electrophoresis locks, metal frames, bicycle parts, stationery, luggage buckles, lighters and other supplies have achieved satisfactory results.
In addition, cathodic electrophoresis is also applied to the deposition of metal oxides and the preparation of metal films to obtain materials of a particular property. For example, by electrophoretically depositing ZnCO2O4 on a nickel-based electrode as a catalyst for an oxidation reaction, an electrode having good catalytic properties and high mechanical stability can be obtained. The high-purity zinc oxide powder prepared by the solid pyrolysis reaction is subjected to electrophoretic deposition to form a high-quality zinc oxide film capable of emitting ultraviolet rays having a wavelength of 390 nm at room temperature.
Because cathodic electrophoretic coatings have excellent corrosion resistance, permeability and decorative properties, they are not only used in the automotive industry, but also widely used in other industries, and are widely used in other industries. For example, in building materials, fire-resistant doors, steel windows, etc. are coated with a double-coated epoxy cathodic electrophoretic coating with good weatherability, and an acrylic resin-based cathodic electrophoretic coating for steel furniture and partition materials. In the hardware industry, electrophoresis locks, metal frames, bicycle parts, stationery, luggage buckles, lighters and other supplies have achieved satisfactory results.
In addition, cathodic electrophoresis is also applied to the deposition of metal oxides and the preparation of metal films to obtain materials of a particular property. For example, by electrophoretically depositing ZnCO2O4 on a nickel-based electrode as a catalyst for an oxidation reaction, an electrode having good catalytic properties and high mechanical stability can be obtained. The high-purity zinc oxide powder prepared by the solid pyrolysis reaction is subjected to electrophoretic deposition to form a high-quality zinc oxide film capable of emitting ultraviolet rays having a wavelength of 390 nm at room temperature.
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