The synthesis of polymer surfactants has become one of the hot topics in the synthesis of surfactants in recent years. However, there is still a lot of basic work to be further studied in the continuous development of new products and the exploration of the relationship between their structure and performance.

The cationic surfactant obtained by quaternization of triethanolamine and natural oil can give good softness to the fabric. The amino ester obtained by the reaction of stearic acid, oleic acid, palmitic acid and triethanolamine is mixed with polyoxyethylene glycol laurate and methylated with sulfate to obtain fabric softener. In addition, a new softener amide ethyl imidazoline quaternary ammonium salt can replace dhtdmac. This kind of surfactant has low toxicity and is easy to degrade. Tubingalb, a biodegradable cationic active softener developed by chtr breitlich GmbH in Germany, has high directness and has no effect on fluorescent brightener. The treated fabric feels soft and bulky.

Surfactant is a kind of compound that can significantly reduce the surface tension of water at very low concentration. It can associate to form micelles after reaching a certain concentration, so it has a series of physical and chemical functions and corresponding practical applications, such as anti viscosity, emulsification or demulsification, foaming or defoaming after wetting, solubilization, dispersion, washing, anti-corrosion, anti-static and so on Fine chemical products with a wide range of uses.

Biosurfactants also have great development prospects. They are amphiphilic compounds with surface activity produced by the metabolism of biological systems. Compared with chemical synthetic surfactants, biosurfactants not only have high surface activity and strong emulsifying ability, but also have the advantages of non toxicity, non stimulation, fast and complete biodegradation, no environmental pollution and wide source of production raw materials, which are not possessed by general chemical synthetic surfactants. Therefore, there is a great potential demand in the market.

The synthesis of polymer surfactants has become one of the hot topics in the synthesis of surfactants in recent years. However, there is still a lot of basic work to be further studied in the continuous development of new products and the exploration of the relationship between their structure and performance.

What are the main raw materials of alkyl glycosides? The main raw materials of alkyl glycosides are starch and its hydrolysates. Starch is a renewable natural resource with rich sources? Low cost. Alkyl glycosides are obtained by dehydration of starch hydrolysate glucose with aliphatic alcohols.

Alkyl polyglycoside APG 0814 has a softening effect on the skin and no irritation to the eyes. It is widely used in personal care and household detergents, such as shampoo, bath liquid, facial cleanser, hand sanitizer, etc.

Nonionic surfactants have excellent washing properties and strong decontamination ability even at low concentration; Less foam; Easy to be made into liquid detergent; It does not dissociate when dissolved in water and is not sensitive to hard water and electrolyte

Among non-ionic surfactants, surfactants with hydrophobic chains of 10 ~ 11 carbon atoms and polyoxyethylene chains of 6 ~ 8 EO units seem to be good wetting agents. In the polyoxyethylene polyoxypropylene copolymer, the wetting force increases with the increase of the molecular weight of the polyoxypropylene segment in the molecule, and reaches a high wetting force when the EO content in the molecule is low. However, in order to obtain soluble and surface active molecules in the aqueous phase, there must be a certain number of EO units.

Surfactants are substances that can significantly reduce the surface tension and liquid-liquid interfacial tension of liquids. Their molecules are composed of polar hydrophilic groups and nonpolar hydrophobic groups. The common hydrophilic part is carboxyl, sulfate, sulfonic acid, amino, quaternary ammonium and hydroxyl, while the hydrophobic part is represented by long-chain alkanes and aromatics.

Various chemical additives used in viscose production can be divided into three to four categories.

Surfactant molecules are first adsorbed on the interface between oil and solution. Under the action of lipophilic and hydrophilic groups of surfactant, coupled with the convection and stirring of solution, the oil stain gradually separates from the metal surface and enters the solution, forming a very fine spherical emulsion.

With the progress of science and the development of technology, people are more and more aware of the importance of environmental protection, resource conservation and rapid economic development. The research and development of water-based non-toxic and low energy consumption coatings to replace the traditional oil-soluble coatings has become the investment hot spot of the coating industry all over the world. In the past, water-based paint paste was mainly used in textile pigment printing and watercolor ink for art advertising. Now it has been gradually extended to the fields of architectural coating, carton printing ink, metal coating, wood paint and so on.

Surfactants commonly used in aqueous paint pastes, such as castor oil polyoxyethylene amide, fatty alcohol polyoxyethylene ether silane and fatty alcohol polyoxyethylene ether, have a good wetting and dispersion effect on pigment particles, but have an impact on the consistency, leveling and foaming of the system.

Surfactants commonly used in aqueous paint pastes, such as castor oil polyoxyethylene amide, fatty alcohol polyoxyethylene ether silane and fatty alcohol polyoxyethylene ether, have a good wetting and dispersion effect on pigment particles, but have an impact on the consistency, leveling and foaming of the system.

The interaction between weak pigment particles and surfactants is another case. At the water-solid interface, surfactants give full play to the natural affinity of hydrophilic and hydrophobic groups in their molecules and selectively locate on both sides of the interface.

The solubilization of oil by surfactant micelles may be an important mechanism for removing a small amount of liquid dirt from the solid surface. Various organic substances insoluble in water are added to different parts of the micelle due to their different properties to form a transparent and stable solution. The non-polar oil is added and dissolved in the non-polar core of the micelle

At present, when the material departments or industrial departments conduct scientific research on inorganic powder, they often use ball milling to obtain inorganic powder with narrow particle size distribution or ultra-fine powder. Crushing itself is also a reversible process. Large particles are crushed into small particles, and small particles can also coalesce to form large particles.

The application of surfactants in the field of nano material preparation has been familiar to everyone, and from another point of view, the development of nanotechnology has entered the stage of "the difficulty is not how to prepare nanoparticles, but how to establish the relationship between macro and micro, and how to apply nano materials", The role of surfactants in the application of nano materials is very important.

Surfactants can be divided into anionic, cationic, amphoteric and non-ionic types according to whether their groups can be ionized and the properties of ionized groups. It is generally composed of nonpolar lipophilic groups and polar hydrophilic groups. The two groups are located at both ends of the molecule to form asymmetric hydrophilic and hydrophobic structures.