Alkyl glycoside "green" functional surfactant

2021-11-08 10:28:50

Alkyl glycoside (APG) has excellent ecological and toxicological properties and outstanding physical and chemical properties. It is especially suitable for washing products and personal care products in contact with human skin. In addition, it can be used as functional additives in daily chemical industry, pharmaceutical industry, industrial emulsifier, food industry, biochemical industry and agricultural chemicals.

Alkyl glycoside surfactant is synthesized from renewable natural fatty alcohol and glucose. It is a new type of non-ionic surfactant with comprehensive performance. It has the characteristics of ordinary non-ionic and anionic surfactants. It has high surface activity, good ecological safety and compatibility. It is internationally recognized as the first choice of "green" functional surfactant.

After alkyl glycoside surfactants form micelles in aqueous solution, they have the ability to significantly increase the solubility of water-insoluble organic matter, and the solution is transparent at this time. This effect of micelles is called solubilization.

Emulsification and solubilization are continuous, but essentially different. Solubilization can significantly reduce the chemical potential of the solubilized matter and make the system more stable and thermodynamically stable. As long as the external conditions remain unchanged, the system does not change with time; Emulsification is thermodynamically unstable.

When aluminum hydroxide is used alone as a flame retardant, the flame retardant efficiency of general metal oxides is low. Generally, the filling amount must be more than 40% to meet the actual flame retardant requirements, and the moderate flame retardant can be obtained only with high addition amount. Aluminum hydroxide itself has strong polarity, hydrophilic and oil repellent. Especially with the ultra-fine particles, its powder is easy to agglomerate and has poor adhesion with the substrate, resulting in the decline of processing and mechanical properties of the material. Therefore, when the amount of aluminum hydroxide is high, the mechanical properties of polymer materials will decline and the processability will become worse. The improved method is to select a surface modifier with excellent performance to modify the surface of aluminum hydroxide and improve its water loss temperature, so as to withstand the processing temperature of general plastics and further broaden the application range of aluminum hydroxide. Another method is to improve the surface activity of particles, improve the dispersion, improve the compatibility between particles and polymer materials, and improve the effect of flame retardant, impact resistance and thermal properties.