Since the specific surface area of fumed silica is relatively high and the surface polarity is relatively strong, in the powder system, the high adsorption of fumed silica can be used to prevent the agglomeration of the system. In addition, fumed silica is due to The particle size is relatively small. After being dispersed in the powder system, it covers the surface of the system particles. During use, it can play the role of internal lubrication and increase the fluidity of the system. For example, in toner powder, after adding fumed silica, it can absorb part of the water, so as to obtain a dry effect, and can effectively prevent agglomeration and improve fluidity. The dosage is generally 0.5-6%. In addition, using the high specific surface area, small particle size and high adsorption of fumed silica, it can be used to absorb essence and be used in powder cosmetics. At the same time, it can also control the release speed of essence. In addition, in powder cosmetics, such as facial care products, antiperspirants, etc., fumed silica can absorb too much oil and water, and obtain good use effects.

Since the specific surface area of fumed silica is relatively high and the surface polarity is relatively strong, in the powder system, the high adsorption of fumed silica can be used to prevent the agglomeration of the system. In addition, fumed silica is due to The particle size is relatively small. After being dispersed in the powder system, it covers the surface of the system particles. During use, it can play the role of internal lubrication and increase the fluidity of the system. For example, in toner powder, after adding fumed silica, it can absorb part of the water, so as to obtain a dry effect, and can effectively prevent agglomeration and improve fluidity. The dosage is generally 0.5-6%. In addition, using the high specific surface area, small particle size and high adsorption of fumed silica, it can be used to absorb essence and be used in powder cosmetics. At the same time, it can also control the release speed of essence. In addition, in powder cosmetics, such as facial care products, antiperspirants, etc., fumed silica can absorb too much oil and water, and obtain good use effects.