Domestic consumption of alkyl polyglycosides will continue to grow

2018-10-20 10:29:36

Surfactant products are widely used in synthetic detergents, cosmetics, personal care products, textile printing and dyeing, food and other fields closely related to people's lives. With the rapid development of downstream industries and the continuous expansion of surfactant applications, In the future, the consumption of domestic alkyl polyglycoside surfactants will continue to grow rapidly, steadily. At the same time, with the improvement of the technical level of domestic surfactant manufacturers and the continuous expansion of production scale, China's surface The international competitiveness of active agent products will be further enhanced, and the demand of foreign customers for our products will continue to grow steadily.

The alkyl polyglycoside surfactant has the ability to significantly increase the solubility of the water-insoluble organic substance after forming a micelle in an aqueous solution, and at this time, the solution is transparent, and the action of the micelle is called solubilization.

The effects of emulsification and solubilization are continuous, but they are different in nature. Solubilization can significantly reduce the chemical potential of the solubilizate, making the system more stable and thermodynamically stable, as long as the external conditions are not The system does not change with time; the emulsification is thermodynamically unstable.

The position and state of the solubilizate in the micelle depends on the type of solubilized material and surfactant.

Singlet model: The state and position of the molecules of the solubilized material in the micelle are fixed, usually in four ways: 1.1 Non-polar molecules are solubilized inside the micelle 1.2 Solubilization between surfactant molecules 1.3 Solubilization on the surface of micelles 1.4 Solubilization between polyoxyethylene chains

Two-state model: the inside of the micelle dissolves the solubilized material to become a "dissolved state"; when the polar group is less soluble and the solubilized substance soluble in the micelle is surface active, it can also adsorb on the surface. In excess, this adsorption at the more polar micelle-water interface is referred to as the "adsorption state." When adsorption occurs, the amount of adsorption far exceeds the amount that only considers the internal dissolution of the hydrocarbon.