Industrial carbon black is a commonly used black pigment that has the advantages of high absorption rate, high heat resistance, corrosion resistance and low cost. Industrial carbon black has poor adhesion properties, which makes it easy to disperse and lose in high-temperature, high-pressure and high-humidity environments. Therefore, how to improve the adhesive properties of industrial carbon black is an important issue.
One common method is to use adhesive. Adhesives can increase the adhesion of industrial carbon black by bonding to its surface. Commonly used adhesives include carboxycellulose, hydroxycellulose, hydroxycellulose acid ester and sodium hydroxycellulose acid ester. These adhesives have good adhesive properties and heat resistance.
Another approach is to use modified industrial carbon black. Modified industrial carbon black increases its adhesion by coating an active layer on its surface. Commonly used modifiers include silanes, silicone oils and polyurethanes. These modifiers have good adhesion and heat resistance.
The adhesion of industrial carbon black can also be improved by controlling process conditions. For example, the dispersion and loss of industrial carbon black can be reduced by lowering temperature, increasing pressure, and reducing humidity. At the same time, the adhesion properties of industrial carbon black can also be improved by controlling process parameters, such as stirring speed, stirring time and stirring method.
The coating process can also be used during the production process, which is to wrap industrial carbon black in a protective film to prevent it from reacting with substances such as oxygen and moisture in the environment, thereby improving its adhesive properties.
Improving the adhesion properties of industrial carbon black is a complex problem that can be solved using a variety of methods. When selecting a method, factors such as the application field, production process and economic benefits of industrial carbon black need to be considered.