Silicone is in the coating industry - feel agent, pigment surface treatment agent, waterproofing agent
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The additive amount of touch agent is 0.5% ~ 5% of the solid mass of paint.
Part of the solvent - based coating touch agent can also be used for UV - curing coating. Water - based coating with touch agent can use ultra-high molar mass polydimethylsiloxane dispersion, also can use silicone polyether copolymer. The active component of high molar mass hydroxy silicone oil dispersion is 80% ~ 65%, the viscosity is 30 ~ 50 million mm2 / s, and the coating has a smooth feel after use. Silicone polyether copolymer can reduce the surface friction coefficient of the coating, so it has a silky feel.
Pigment surface treating agent Inorganic pigments treated with organosilicon can improve their dispersion in solvent based coatings. Inorganic pigments (such as iron oxide red, etc.) treated by silicone-toluene solution containing Si-OH and silicone-toluene with mass fraction of 10% can reduce the delamination and floating in solvent coatings, and also have leveling and luster. All kinds of silane coupling agents can be used as pigment surface treating agents.
Water repellent agent used in waterborne coatings is mainly elastomer emulsion containing silicon hydroxyl group, only need to evaporate water at room temperature can be vulcanized, increase the temperature can accelerate the evaporation of water. They are used in water-soluble inks to provide water resistance and certain chemical resistance; It can also be used as a protective and waterproof coating for a variety of textiles and non-woven fabrics. The addition amount was 2% ~ 5%.