Industrial monosodium glutamate is also a kind of Surfactants.
Surfactant is a kind of substance.
When the amount of surfactant is little, the surface tension of solvent (usually water) can be greatly reduced and the interface state of the system can be changed. When it reaches a certain concentration, micelles are synthesized in solution. Thus producing wetting or anti-wetting, emulsification and demulsification, foaming or defoaming, adding solubilization, washing and other functions to meet the requirements of practical applications. MSG as an umami substance in our diet life can be said to be omnipresent. In industrial production, surfactants are very similar to MSG substances, the amount does not need too much, but the effect is very magical, such substances are usually referred to as surfactants.
In oil exploitation, the use of aqueous solution of surfactants, or the mixed concentrated solution of surfactants and oil and water for oil recovery in the oilfield can increase the crude oil recovery rate by 15% to 20%. Because the surfactant has the property of reducing the viscosity of solution, it can reduce the viscosity of crude oil and reduce or prevent the occurrence of stuck drilling accidents when it is used in drilling. It can also enable old Wells that no longer pump oil to be re-sprayed.
Surfactants can also contribute to energy development. Nowadays, in the situation of rising world oil price and tight oil source, it is of great significance to develop oil-coal hybrid fuel. That is, a new type of fuel with high flow performance can be made by adding surfactants in the process, which can replace gasoline as a power source. In addition to gasoline, diesel and heavy oil to add emulsifying surfactant, not only to save oil sources, but also to improve the thermal effect, but also to reduce environmental pollution. Therefore, surfactants have far-reaching significance for energy development.
The application of surfactants in textile industry has a long history. Compared with natural fibers, synthetic fibers have the disadvantages of rough, not fluffy enough, easy to produce electrostatic adsorption dust, hygroscopic property and poor feel, etc., if treated with special surfactants, the defects of synthetic fibers can be greatly improved. In addition, surfactants are also softeners, antistatic agents, wetting penetrants and emulsifiers in the textile printing and dyeing industry. It can be seen that the application of surfactants in textile printing and dyeing industry is very extensive.
In terms of metal cleaning, the traditional solvents are organic solvents such as gasoline, kerosene and carbon tetrachloride. According to relevant statistics, the gasoline used to clean metal parts in the country is as high as 500,000 tons per year. The water-based metal cleaning agent made of surfactant can save energy.
It is estimated that a ton of metal cleaning agent can replace 20 tons of gasoline, and 1 ton of oil raw materials can be made into 4 tons of metal cleaning agent, so surfactants have far-reaching significance for saving energy. In addition, the surfactant metal cleaning agent also has the characteristics of non-toxic, non-explosive, non-polluting the environment and ensuring the safety of workers. This kind of metal cleaning agent has been widely used in aerospace engines, aircraft, bearings and other different kinds of metal parts cleaning.
In the food industry, surfactants are multifunctional auxiliaries for food production. Food surfactants have excellent emulsification, wetting, anti-sticking, preservation and flocculation. Because of this special additive effect, pastry can be crisp, foamable food foaming, bread soft, margarine, mayonnaise, ice cream and other product raw materials evenly dispersed and emulsified, to improve the production process of products and the inherent quality of products have a unique effect. agriculture
Pesticide is a kind of emulsion liquid, because of the surface tension of the liquid, it is not easy to spread out on the leaf surface of the plant. If the surfactant is added to the pesticide mixture, the effect of the surfactant can reduce the surface tension of the liquid, that is, the emulsion loses its surface activity, and the pesticide emulsion will be easily spread on the leaf surface, so that the insecticidal effect will be better.