The technology and products of green surfactants have developed rapidly

      Green surfactant technologies and products have developed rapidly, and some are at the international advanced level. The production of new green surfactants using renewable resources such as oils and starches has become a hot topic in surfactant research, development and industrialization in recent years, and the series of their varieties and derivatives can meet the demands of different fields.

      The development of functional small varieties of surfactants has been rapid, but there is still a considerable gap in variety and quantity compared with the developed countries in the world. Functionalization of surfactants is another major development direction, and our country has also guided and promoted it in relevant policy planning, which has been widely recognized by the industry. Domestic research institutions, universities and companies have done a lot of work in this area and achieved a number of gratifying results.

      In addition to altering the activity of the aqueous solution, that is, reducing its surface tension, various properties related to washing, such as penetration, adsorption, wetting,

dispersion, emulsification, gelation, foaming, etc., will undergo significant changes near the critical micelle concentration.

      The surfactants used in synthetic detergents are not very pure single compounds and often contain more or less adjacent homologues. Moreover, surfactants make up less than a third of the total weight in detergent formulations, and the rest are various additives and auxiliaries that play different roles. Therefore, the role that a multi-component synthetic detergent plays in the washing process is a complex synthesis process.

      The main component of a synthetic detergent. An amphiphilic molecule that chemically has both lipophilic (hydrophobic) and hydrophilic (oleophilic) parts can be adsorbed at the interface of two phases and arranged as a single molecule to reduce the surface tension of the solution. This property is called surface activity, and substances with surface activity are called surface surfactants.

      When washing oil stains on clothes with water, since oil and water are not混cible, it is difficult to remove the oil stains. When some soap or synthetic detergent is added, it changes the original surface tension between the oil stains, water, fabric and air, and a series of actions such as penetration, adsorption, wetting, dispersion, emulsification, gelation, foaming occur, along with scrubbing or the stirring of the washing machine, It is easy to remove the oil stains.