Coating classification: aluminum pigments for Waterborne Coatings

Core tip: Introduction: Aluminum pigment is a kind of flake metallic pigment with silver white flash performance, which is made of melt blown aluminum powder Its industrial production can be traced back to more than 100 years ago With the development of technology, the metallic luster of aluminum pigment products is brighter after industrial technology transformation, which has been widely used in coating industry, plastic industry and printing ink For a long time, aluminum pigment has been used in solvent system In recent years, with the further development of coating industry and the enhancement of people's awareness of environmental protection, the regulations on the discharge of toxic solvents to the atmospheric environment have become increasingly strict, low pollution and unfair Paint knowledge | precautions for wall paint color selection Recommended introduction: when painting the wall, the owner sometimes has difficulty in choosing what color of the wall paint to paint In fact, there is no ugly color in the wall paint, only the disharmonious color matching The use of wall color contains the knowledge of health Too strong color will stimulate people's perception, make people have a sense of fidgety, affect people's mental health Grasp the basic principles of wall color and paint a colorful space 1、 Wall paint color selection notice 1 Light color is generally used for the top surface Light colors make people feel light, dark colors make people feel heavy Usually, the treatment of rooms is from top to bottom, from shallow to deep For example, the ceiling and walls of rooms are white and Introduction: aluminum pigment is a kind of flake metallic pigment with silver white flash performance, which is prepared by melting and spraying aluminum powder Its industrial production can be traced back to more than 100 years ago With the development of technology, the metallic luster of aluminum pigment products is brighter after industrial technology transformation, which has been widely used in coating industry, plastic industry and printing ink For a long time, aluminum pigment has been used in solvent system In recent years, with the further development of coating industry and the enhancement of people's awareness of environmental protection, the regulations on the discharge of toxic solvents into the atmospheric environment have become increasingly strict, and the production and development of aluminum pigment products with low pollution, pollution-free and dust-free have been highly valued Water instead of organic solvent has become an inevitable trend in the development of coating industry However, aluminum pigment is easy to react with water: 2Al + 6H2O = = 2Al (OH) 3 ↓ + 3h2 ↑ In order to meet the development requirements of aluminum pigment hydration, it is particularly important to study aluminum pigment for waterborne coating Production: 1 Additive technology additive technology, i.e mixing additives on the surface of aluminum pigment particles by physical methods, forming a protective layer on the outer layer of aluminum sheet through a barrier mechanism, and finally preventing the reaction between aluminum and water For a long time, the most commonly used method to prevent the generation of gas is to use organophosphorus compounds for treatment Phosphorus has a strong affinity with aluminum, which is due to the chemical bond between phosphorus as a stabilizer and the active part of the surface of aluminum pigment The bond formation is shown in the figure below 2 Coating technology, that is to say, the aluminum sheet is wrapped, and the single pigment particles are completely enclosed, so as to prevent the reaction of aluminum and water Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,