Brief description of coupling agent usage

Brief description of coupling agent usage:

1. Pre treatment method for pigments and fillers

The method of pre coating Qin acid phenol coupling agent on the surface of pigment fillers, although cumbersome, has a good treatment effect. Dissolve the coupling agent in a small amount of benzene such as toluene and xylene; In the container, add the pigment filler and stir at high speed (about 1000r/min) to a suitable temperature of about 100 ℃ for about 0.5 hours, so that each pigment particle can be coated with a layer of coupling agent. After the pigment filler is coated with the coupling agent, the coating can be prepared according to the usual method

2. Direct addition method

During the paint making process, coupling agents are directly added before high-speed dispersion; Container gasoline, xylene, etc; The coupling agent will be weighed properly; Dissolve and disperse into organic matrix, add pigments and fillers for high-speed dispersion, and then prepare the coating according to the usual method

Water based coatings use water-soluble coupling agents, and the treatment method is as described above, using water as the solvent