01 The Importance of Organic Silica Emulsion 
Organosilicones play a significant role in the industrial and cosmetic fields due to their outstanding physical properties, such as hydrophobicity, thermal stability, high chemical resistance and UV resistance. Among them, silicone oil emulsions have extensive applications in various industries including cosmetics, fabric finishing agents, rubber release agents, printing and tire treatment. 
02 Basic Characteristics of Emulsion 
Emulsion, a multiphase system composed of two originally immiscible liquids, is not uncommon in daily life. In this system, one liquid is uniformly dispersed in the form of tiny droplets within the other liquid. This dispersion state significantly increases the total surface area, thereby leading to an increase in free energy and making the emulsion thermodynamically unstable. However, by adding emulsifiers to reduce the interfacial energy between the two phases, the emulsion can be effectively stabilized. Emulsions can be stabilized by various substances, including amphiphilic surfactants, surface-active polymers, colloidal particles, or the combination of particles and surfactants. 
03 Application of Small Molecule Surfactants 
Surfactants are the key components for the stability of emulsions. Based on the charges carried by the hydrophilic groups in their molecular structures, surfactants can be classified into non-ionic, cationic, anionic, and amphoteric surfactants. In current practical applications, ionic surfactants are more widely used in the field of surfactant polymers, while small molecule emulsifiers are mainly composed of non-ionic surfactants. 
04 Applications of Surface Active Polymers 
Surfactant polymers, such as organosilicon copolymers, have unique advantages. Their molecular chains possess both hydrophilicity and hydrophobicity, enabling them to attach to the interface through multiple chain segments, thereby providing strong adsorption capabilities. This adsorption energy is the sum of all inter-chain interactions and is much greater than that of a single small molecule surfactant. Therefore, surfactant polymers can more effectively stabilize silicone oil emulsions, ensuring their stability far exceeds that of small molecule surfactants. 
05 Applications of Solid Particles 
The classic stable solid-particle emulsion, namely the Pickering emulsion, relies on the aggregation of particles at the interface between two immiscible liquids to form a mechanically stable monolayer. This monolayer can effectively stabilize the emulsion droplets and prevent their aggregation. It is worth noting that the adsorption energy of solid particles is much greater than that of polymer surfactants, which makes the Pickering emulsion exhibit excellent stability.