Defoaming effect can be divided into two types: foam breaking and foam inhibiting. The substance with foam breaking ability is called foam breaking agent. An effective defoamer should not only break the foam quickly, but also prevent the formation of foam for a long time.

Anionic surfactant has excellent performance in decontamination, but it is often used with non-ionic surfactant to obtain better deinking effect. Anionic surfactant has good foaming and degreasing properties, and non-ionic surfactant presents non-ionic state in aqueous solution with high stability. When nonionic surfactant and anionic surfactant are used together, the colloidal particles will be negatively charged and repel each other with the same charge, forming a stable dispersion system, which is conducive to the separation and removal of ink and fiber.

Oxygen increasing principle of surfactant: after adding surfactant in aquaculture water, the saturation solubility of oxygen in aquaculture water can be increased. According to the hydrate formation theory and the double membrane theory, since the solubility of oxygen in water is very small, the water oxygen compound in water generally first forms at the gas-liquid interface, and then slowly diffuses from the gas phase to the liquid phase. In the water body containing surfactant, due to the solubilization of the surfactant, a large amount of oxygen is dissolved in the surfactant micelle formed in the aqueous solution.

The application principle of surfactant in water-based metal cleaning agent is to weaken or offset the adhesion of oil stain on metal surface through the properties of surfactant such as wetting, penetration, emulsification, dispersion and solubilization, and accelerate the oil stain to leave the metal surface by mechanical and physical methods and enter the washing solution to be emulsified, dispersed and suspended or solubilized in micelles.

Emulsifier is a kind of surfactant. Surfactants have the function of emulsification and others. The main function of surfactant is to remove stains, emulsification, solubilization, suspension aid, foaming and defoaming, sterilization, etc.

Surfactant is used as the cleaning agent in the cleaning solution to reduce the interfacial tension between the cleaning solution and the dirt. The cleaning solution can first wet the dirt surface to make the dirt swell, and then penetrate into the dirt to disperse the dirt.

At present, chemical flooding is the main method of tertiary oil recovery in China. Surfactants are suitable for chemical flooding. On the basis of practical work experience, many experts and scholars have put forward requirements for surfactant for oil field flooding, which are summarized as follows

The application principle of surfactant in water-based metal cleaning agent is to weaken or offset the adhesion of oil stain on metal surface through the properties of surfactant such as wetting, penetration, emulsification, dispersion and solubilization, and accelerate the oil stain to leave the metal surface by mechanical and physical methods and enter the washing solution to be emulsified, dispersed and suspended or solubilized in micelles.

Another important property of surfactants is that they can spontaneously form micelles in aqueous solutions. With the increase of surfactant concentration, the micelles increased, and the shape of micelles changed from spherical, rod to layered. The micellar core formed in the aqueous solution of surfactant molecules creates a hydrophobic micro space, which can dissolve hydrophobic drug liquids or solutions in it. Therefore, the formation of micelles is of great significance for pesticide formulation processing.  

The alkyl polyglycosides combined with lysozyme action system can significantly improve the sludge hydrolysis effect. With the increasing dosage of alkyl polyglycosides, the sludge hydrolysis effect will also be enhanced. When the dosage of alkyl polyglycosides is 0.3 g/gDS, the hydrolysis and sludge reduction effect is the best. After comprehensive consideration, the optimal dosage is determined to be 0.3 g/gDS.

Under the action of alkyl polyglycosides alone, the concentration of polysaccharide dissolved from the sludge increased sharply 2 hours before the reaction, the increase of polysaccharide content slowed down gradually 2 to 4 hours, the concentration of polysaccharide gradually decreased 4 to 24 hours later, and the concentration of polysaccharide in the sludge gradually became stable.

Most of the grinding aids used in my country's ceramic industry are relatively expensive and have a single performance. Most of the ceramic grinding aids used are still produced from industrial raw materials, resulting in high prices and difficult for users to accept. Coupled with the shortage of sources, most of them are Petroleum or coal chemical products, so it is difficult to popularize and apply.

Scholars at home and abroad have carried out a lot of meaningful research and exploration on the remediation of PAH-contaminated soil by surfactants. However, the existing research mainly focuses on traditional surfactants, and traditional surfactants often have problems such as toxicity, secondary pollution, and high price. Therefore, finding economical, effective and environmentally friendly new surfactants will become the future application of surfactant repair. Research hotspots and key points of PAH-contaminated soils.

If the formulation design of cosmetics is flawed, it may cause abnormal skin reactions during use, which in turn may affect people's mood or health to some extent. Therefore, the raw materials for the production of cosmetics cannot have immune rejection reactions with the human body, that is, they must be non-irritating and non-toxic to the skin, hair, eye mask, etc., and have good appearance, skin feel, and good spreadability and stretchability.

The solubilization of oily soils by surfactant micelles may be an important mechanism for the removal of small amounts of liquid soils from solid surfaces. Various organic substances that are insoluble in water are added and dissolved in different parts of the micelle due to their different properties to form a transparent and stable solution.

When the concentration is high, a bilayer adsorption film is formed on the metal surface due to the interaction of hydrophobic groups. The increase of the surfactant concentration can improve its corrosion inhibition efficiency. When the concentration is increased to make it reach saturation adsorption on the metal surface, it shows a good corrosion inhibition efficiency. For a certain series of surfactants, the corrosion inhibition efficiency is The critical micelle concentration cmc reaches a large value. 

With the development of social economy and socialist society in cities, people's living standards are constantly improving, but in addition, the problems of environmental analysis and optimal allocation of resources are increasingly not optimistic. Performing waste sorting is a top priority. The occurrence of garbage sorting rooms has further improved the production efficiency of cleaning workers and the work efficiency of garbage sorting and recycling. Polyetheramine technology is often used as a foaming agent after generating polyetheramine. Of course, it is precisely because of the existence of such products that we can achieve an excellent effect when using the product.

Las / AEO is the main component of traditional kitchen detergents. Due to its poor solubility, foaming and mildness, it is necessary to add more toxic cosolvent alkylamine oxide to improve its performance. APG has good solubility, mildness, foaming power and degreasing, and has excellent synergistic effect with LAS. The foam performance and cmc value of Las / APG are better than those of single component, and the water resistance, hardness and irritation of the mixture are almost the same as those of APG. It is easy to rinse, free of stains and has a refreshing and comfortable sense of use. Las / APG is becoming the main component of a new generation of clothing and meal detergents.

Polyether amine can be used as a curing agent in concrete, so we should not only control its skills and methods, but also pay special attention to the relevant matters of operation. In construction, if the operation is improper, it is easy to shorten the life of the ground. Then, in this process, what should we do if the ground is sanded?

Alkyl glycosides have good solubility in water. The main reason is that many hydroxyl groups on the glycoside head group can form hydrogen bonds in water. However, it should be noted that although the glycoside head group in APG molecules has a stronger ability to form hydrogen bonds with water than the alkyl chain, its hydration degree is far less than that of polyoxyethylene nonionic surfactants. Therefore, APG does not have cloud point and diluted gel like other non-ionic surfactants. This property makes the complex system it participates in to build have no temperature induced phase transition, which provides convenience for people to prepare products that can exist stably in a wide temperature range.