Our main products: Amino silicone, block silicone, hydrophilic silicone,all of their silicone emulsion,wetting rubbing fastness improver, water repellent(Fluorine free,Carbon 6,Carbon 8), demin washing chemicals(ABS, Enzyme, Spandex protector, Manganese remover)， Main export countries: India, Pakistan, Bangladesh, Türkiye, Indonesia, Uzbekistan, etc

 

★ Wetting effect

 

When a solid comes into contact with a liquid, the original solid/gas and liquid/gas interfaces disappear and a new solid/liquid interface is formed, which is called wetting. Textile fibers are a porous material with a huge surface area. When the solution spreads along the fibers, it enters the gaps between the fibers and drives out the air, turning the original air/fiber interface into a liquid/fiber interface, which is a typical wetting process; And the solution will also enter the interior of the fiber, which is called permeation. Surfactants that facilitate wetting and permeation are called wetting agents and permeation agents.

 

★ Emulsification effect

 

Due to the high surface tension of oil in water, when oil is dropped into the water and stirred vigorously, the oil is crushed into fine beads and mixed with each other to form an emulsion, but the stirring stops and the layers are re layered. If a surfactant is added and stirred vigorously, but it is not easy to separate for a long time after stopping, this is emulsification. The reason is that the hydrophobicity of the oil is surrounded by the hydrophilic groups of the active agent, forming a directional attraction and reducing the work required for oil dispersion in water, resulting in good emulsification of the oil.

 

★ Washing and stain removal function

 

Due to the emulsifying effect of surfactants, oil and dirt particles detached from solid surfaces can be stably emulsified and dispersed in aqueous solutions, and no longer deposit on the cleaned surface to form re pollution.

 

★ Suspension dispersion effect

 

The process of dispersing insoluble solids into a solution as tiny particles to form a suspension is called dispersion. The surfactant that enhances solid dispersion and forms a stable suspension is called a dispersant. In fact, it is difficult to distinguish whether a semi-solid oil is emulsified or dispersed in solution during the emulsification and dispersion process, and emulsifiers and dispersants are usually the same substance. Therefore, in practical use, the two are combined and referred to as emulsifying dispersants.

 

★ Solubilization effect

 

Solubilization refers to the effect of surfactants on increasing the solubility of insoluble or poorly soluble substances in water. For example, the solubility of benzene in water is 0.09% (volume fraction). If surfactants (such as sodium oleate) are added, the solubility of benzene can be increased to 10%.

 

The solubilization effect is inseparable from the micelles formed by surfactants in water. Micelles are micelles formed by the hydrophobic interactions between carbon and hydrogen chains in surfactant molecules in aqueous solutions. The interior of micelles is actually liquid hydrocarbons, so non-polar organic solutes such as benzene and mineral oil that are insoluble in water are more easily dissolved in micelles. Solubilization phenomenon is the process of micelles dissolving lipophilic substances, which is a special action of surfactants. Therefore, only when the concentration of surfactants in the solution is above the critical micelle concentration, that is, when there are more large micelles in the solution, can solubilization occur. Moreover, the larger the volume of micelles, the greater the solubilization amount.

 

Solubilization is different from emulsification. Emulsification is a discontinuous and unstable multiphase system obtained by dispersing a liquid phase into water (or another liquid phase), while solubilization produces a single-phase homogeneous stable system in which the solubilizing solution and the solubilized substance are in the same phase. Sometimes the same surfactant has both emulsifying and solubilization effects, but only when its concentration is above the critical micelle concentration, does it have solubilization effect.

 

★ Soft and smooth

 

When surfactant molecules are oriented and arranged on the surface of the fabric, it can reduce the relative static friction coefficient of the fabric. Non ionic surfactants such as linear alkyl polyol polyoxyethylene ether and linear alkyl fatty acid polyoxyethylene ether, as well as various cationic surfactants, all have the effect of reducing the static friction coefficient of fabrics, making them suitable as fabric softeners. Surfactants with branched alkyl or aromatic groups cannot form a neat directional arrangement on the surface of fabrics, so they are not suitable for use as softeners.

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