How can Silica be evenly dispersed?
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Good afternoon, may I ask if it is dispersed in liquid or used in other colloids? In liquid solvents, due to the fact that silica is an amorphous and fluffy powder of inorganic silica with a very large specific surface area, it can be dispersed in anhydrous methylethanol and stirred thoroughly before being poured into cold water to prevent aggregation and precipitation. If it has been modified to be hydrophilic, it can be directly added to water for oleophilic use. Non polar solvents can also be used with a small amount of auxiliary hydrophilic dispersants such as NNO and 845 to achieve better synergistic effects. For other colloids such as thermoplastic polymers SBS, PVC, PP, etc., please use specialized dispersants in the corresponding plastic production process.
