Nonionic surfactant. It is mainly used as emulsifier for emulsion, cream and shampoo cosmetics. It has excellent water solubility and can be used to produce oil in water emulsion. It can also be used as antistatic agent. As a hydrophilic emulsifier, it can enhance the solubility of some substances in water, and can be used as an emulsifier for making O/W emulsion. It has good properties of emulsification, decontamination and cleaning. It is widely used in the preparation of civil detergents, industrial emulsifiers and metal cleaners. A kind of

There are many problems in the use of halogen-free flame retardant. However, only by understanding the causes and solutions can we solve the problems correctly. Some customers will think that the higher the concentration of halogen-free flame retardant is, the better the fire-retardant effect will be, and the higher the concentration of halogen-free flame retardant will lead to a certain degree of change in the flame retardant, so what should be done if the concentration of halogen-free flame retardant is too high in the use process? Now with the halogen-free flame retardant manufacturers to understand.

When polyether amine technology is used, generally we need to know what physical and chemical properties it has, so that we can better use the product. Then for its use, we simply collated the following for you, hoping to help you.

In the pesticide industry, a certain amount of surfactants are needed for wettable powder, emulsifiable oil and concentrated emulsion. For example, most of the raw materials of wettable powder are organic compounds, which are hydrophobic. Only in the presence of surfactants, reducing the surface tension of water, can the particles be wetted by water and form water suspension.

There is a change process of surfactant forming micelles in solution with the change of concentration of aqueous solution. When the concentration of surfactant in solution is very low, that is, when the concentration of surfactant in solution is very thin, air and water are almost in direct contact. The surface tension of water drops little, approaching the state of pure water. There are only a few surfactant molecules in water. When the concentration of surfactant increases slightly, the surface activity Agent molecules will soon gather on the surface of the water. The covering of water will reduce the contact between water and air, and the surface tension of the solution will drop sharply.

Combining with the requirements of flame retardant textiles, developing flame retardant products with excellent flame retardant performance and strengthening the supervision and management of fire safety can fundamentally prevent the fire threat of textiles and provide safety assurance for people's lives and properties.

According to different types of sealants used in different industries, no matter what industry they are used in, they need to be prepared. For example, for the use of door and window seals, first remove the dirt on the doors and windows, and then use them, so as to increase the sealing effect.

PP halogen-free flame retardant is a special environmental friendly flame retardant for pp. it is a halogen-free and intumescent flame retardant specially developed for PP. It is polymerized by phosphorus and nitrogen-containing chemicals with synergistic effect. It has good compatibility in polypropylene, little influence on the mechanical properties of plastics, and excellent processing stability in the processing process. PP special environmental friendly flame retardant is different from halogen-containing flame retardant. In the process of combustion, dense expanded carbon layer is produced to achieve the purpose of heat insulation and air flame-retardant insulation, without stimulating hydrogen halide gas and black smoke. It is an environmental friendly flame retardant.

Anionic surfactants have excellent performance in decontamination, but they are often combined with non-ionic surfactants to get better deinking effect. The anionic surfactants have good foaming and degreasing properties. The nonionic surfactants present nonionic state in aqueous solution and have high stability. When the non-ionic surfactant and the anionic surfactant are used together, the colloidal particles are negatively charged and repel with electricity, forming a stable dispersion system, which is conducive to the separation and removal of ink and fiber.

Surfactant has a strong adsorption capacity on the surface of particles. When pesticide processing is added, it helps to disperse and suspend particles, and ensures that the particles are dispersed when water is diluted in the spray barrel to prevent the aggregation of particles. When ionic surfactant is selected, it adsorbs on the surface of particles, providing electric repulsion force, keeping particles separated from each other, that is, providing particle charge stabilization; when non-ionic surfactant is selected, the lipophilic part of surfactant adsorbs on the particles, and the hydrophilic part extends into the water phase around the particles, forming a space barrier, that is, providing space potential resistance stabilization.

Alkyl polyglucoside is one of the essential raw materials in shampoo, because APG has no irritation to human skin and eyes, and can also reduce the irritation of other active agents compounded with APG, so it is one of the essential raw materials in low stimulation shampoo and children shampoo. The softness of APG can protect the damaged hair, which can be used as active agent for hair dyeing and scalding, and compounded with protein hydrolysate The setting property is comparable to that of the commonly used setting agent, polyvinylpyrrolidone, and it is easier to rinse. APG can be used to prepare a new generation of shampoo and bath liquid with strong foaming power and fine foam.

The basic theoretical research of surfactant is weak. Because there may be many kinds of structural states of the same surfactant, EO-PO random polyether is a typical example. If the irregularity of random polyether changes, various forms of EO-PO chain connection will make a large number of structural differences in the same product.

Static electricity can make the tow disperse and produce filament and broken ends, and it is not easy to wind. Using the ion characteristics and hygroscopicity of antistatic agent, it can effectively prevent the accumulation of static electricity. At the same time, the adsorption and orientation of antistatic agent are also helpful to eliminate static electricity.

The surfactant can form hydrophobic groups on the surface of the fiber to adsorb outwards, reduce the dynamic and static friction factors of the fiber material, so as to obtain a smooth and soft feel. Generally, surfactant and oil are always used together. Surfactant can effectively reduce the static friction coefficient of fiber material, while oil can reduce the dynamic friction coefficient of fiber material.

Oxygenation principle of surfactant: the saturated solubility of oxygen in aquaculture water can be increased by adding alkyl glycoside surfactant. According to hydrate formation theory and bimembrane theory, due to the low solubility of oxygen in water, water oxygenates in water generally form at the gas-liquid interface first, and then slowly diffuse from the gas phase to the liquid phase. Due to the solubilization of surfactants, a large amount of oxygen is dissolved in the surfactant micelles formed in the aqueous solution, so that the formation of water oxygenate in the surfactant aqueous solution can not only occur at the gas-liquid interface, but also in the water body, reducing the formation time of water oxygenate, and improving the oxygen in the water body Solubility in.

The compounding and Synergistic Technology of surfactants in our country is relatively backward, so we should strengthen the research on the basis and application technology in this field. The technology of multi-functional synergism, solubilization, emulsification, dispersion and anti caking should be paid more attention. Compounding technology is also the key to promote the application of special surfactants in leather making. The results show that the emulsification, dispersion and wettability of surfactants can be improved by adding 10-6 grade special surfactants.

In addition to being used as antistatic agent and smoothing agent, anionic surfactant can also be used as wetting agent. Succinate sulfonate is a good wetting agent. Adding this kind of surfactant into the oil agent can improve the affinity of the oil agent to the fiber, so that the oil can be evenly applied, and the oil application rate (o.p.u) can be increased as required. A series of products can also be produced with different carbon chains of R group and different EO number. However, the commercial penetrant ot (aerosol OT) is commonly used. The surface activity of OT is still strong, and its interface ability to mineral oil can reach 5.86 (mnm-1) at 0.1% concentration. However, it should be noted that when the product is mixed with other ionic and non-ionic surfactants, it is easy to make the mixture unstable, so in practical application, it should not be added as much as possible on the basis of achieving the osmotic wetting ability. Or it can be used together with other non-ionic surfactants with strong wetting ability to meet the requirements of oil agent function.

Cationic surfactants are widely used in oil agents, such as amines (fatty amines and quaternary ammonium derivatives), which can be used as emulsifiers, antistatic agents and bactericides. High carbon alkylamine derivatives also play a strong role in the bunching of oil agents. The commonly used fungicide "jieermiao" (alkyl, benzyl, dimethyl quaternary ammonium hydrochloride) is the derivative of quaternary ammonium salt.