How to check the fineness of talc powder
1. Surface masking modification: It is one of the more common methods to cover the surface active agent on the surface of talc particles, so that the surface of the particles changes from hydrophilic to hydrophobic, and the particles and polymers can be compatible.
2. Mechanochemistry: It is mainly to pulverize large particles to make them smaller, the surface adsorption capacity is relatively enhanced, it is easy to adsorb other substances, and the process is relatively simple.
3. Modification of outer film layer: The surface of the particles is evenly coated with a layer of polymer.
4. local active modification: the chemical reaction is grafted on the surface of the particle with some groups or functional groups that are compatible with the polymer. So as to achieve the purpose of compounding inorganic particles and polymers.
5. Modification of deposition reaction: This method is to use deposition reaction to coat the surface of talc particles.
