Aluminum powder for aerated concrete blocks

How to prevent aluminum paste from oxidizing?   A strong and stable coating is formed on the surface of aluminum powder, thereby preventing the oxidation of aluminum powder. Oil-soluble aluminum paste uses gasoline as grinding medium and adds a hydrophilic protective film (such as Pingpingjia, etc.) for grinding. The hydrophilic protective film forms an isolation layer on the surface of aluminum powder, which not only prevents oxidation but also maintains the high specificity of aluminum. It can also reduce the interfacial tension of aluminum powder to water, achieving the purpose of dispersing strong electrolytes. This kind of protective film also makes aluminum paste emulsion, which can be used directly and conveniently even though gasoline is used as grinding medium. The appearance of this kind of aluminum paste is dark gray soft granules with a slight gasoline smell. The loose relative density is about ∥cm3. It is stable in dry air and has weak volatility. The powder flakes ha…