Silicone small class, the function and principle of silicone oil emulsion
Silicone emulsion is an emulsion composed of oil-in-water silicone oil, water and surfactants. Silicone emulsion is mainly used as a silicone fabric softening agent. The first generation of silicone fabric finishes were mechanical mixtures of dimethicone and hydrosilicone (and their derivatives). The second generation of silicone fabric finishing agent is hydroxyl-terminated polydimethylsiloxane emulsion, which is emulsified from octamethylcyclotetrasiloxane monomer, water, emulsifier, catalyst and other raw materials under certain conditions. aggregated. Since polymerization and emulsification are completed in one step, it has the advantages of short working hours, high work efficiency, simple equipment, and easy operation. The obtained emulsion is very stable, the particles are very uniform, and the obtained polymer has active groups (hydroxyl groups) at both ends. ) can further react to form a film, which is beneficial to improving the application effect of the emulsion, which is beyond the reach of mechanical emulsified silicone oil.