Polyether amine can be used as curing agent, mainly to play a good viscosity, so in the field of application is relatively broad, it generally contains the primary amine connected to one end of the main chain of polyether. The main chain generally has the mixed structure of EO, PO or EO / PO, so it is named "polyether amine". One of the purposes is to use it as curing agent of epoxy jewelry adhesive. Why choose it as curing agent?

Hydrophilic (oleophobic) hydrocarbon group surfactants are generally used in aquatic products. When the surfactant molecules enter the aqueous solution, the oleophobic group of the surfactant tends to escape from the aqueous phase in order to reduce the contact with the water as much as possible. However, due to the existence of the hydrophilic group in the surfactant molecules, it cannot escape from the aqueous phase completely. The result of the equilibrium is that the surfactant molecules in the solution It is enriched on the surface, that is, the lipophilic group is toward the air, and the hydrophilic group is inserted into the water phase, so the interface formed by the original water and air is gradually replaced by the interface formed by the lipophilic group and air of the surfactant, the surface tension of water is reduced, and the air is more likely to enter the water body.   

Surfactant is a main component of detergent decontamination formula. Except for special use, these products are discharged into the environment directly or after being treated by sewage treatment plant. However, the anionic surfactants which are difficult to be biodegraded are the most important in detergents. The massive discharge of surfactant containing wastewater will not only directly harm the aquatic environment, kill the microorganisms in the environment, inhibit the degradation of other toxic substances, but also lead to the reduction of dissolved oxygen in the water, especially the nitrogen and phosphorus containing surfactants will cause eutrophication of the water. When the surfactant in the sewage reaches a certain concentration, it will affect many processes, such as aeration, sedimentation, sludge nitrification and so on.

Sealant is widely used. Many people don't understand the problems of its use. The following advanced acid sealant manufacturers will share the key points for you:

In general, the dispersion, fluidity, compatibility with resin, thermal stability and weatherability of the flame retardant masterbatch are much better than those of the ordinary flame retardant, and the formula of the flame retardant masterbatch is flame retardant.

With the progress of science and technology and the improvement of living standards, polymer materials, especially synthetic polymers, such as plastics and rubber, are becoming more and more important in people's lives, and their applications are expanding year by year. However, most organic polymer materials have different flammability characteristics in air. In order to realize its application in military, aerospace, transportation, electric power and civil fields, flame retardant modification has become a new topic.

Flame retardant masterbatch (bromine / halogen system) is also called flame retardant masterbatch, which is one of the flame retardant products with excellent performance in plastics, rubber and other resins. Flame retardant masterbatch (masterbatch) is a kind of granular product made by organic combination,

Flame retardant and flame retardant masterbatch are the best in flame retardant material industry. Flame retardant masterbatch is the processing cost of flame retardant, so what's the difference between them? Let's get to know each other.

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.