Surfactants have been widely used in synthetic fiber oil industry, and will be widely used with new varieties and continuous improvement of performance. But we should also see that there are many problems in the domestic practical application, such as the instability of product quality brings difficulties in oil agent deployment and unstable quality of oil agent; The monotony of surfactant makes it difficult to select the oil blending agent.

Surfactant can reduce the interfacial tension and make the wetting angle θ Near zero, the solid powder can be dispersed spontaneously in surfactant solution. Meanwhile, surfactant can help liquid wet the inner surface of solid, make liquid penetrate into the channel and void between the particles' internal aggregates, provide certain pressure, and under the action of mechanical force, the reinforcement bond force of particle aggregation will be destroyed. At the same time, surfactant can help grind, reduce the surface energy of particles, prevent the surface of damaged surface from bonding, and thus achieve the purpose of preventing particle aggregation.

Phosphorus fabric flame retardant is a kind of flame retardant with rich resources, low wood forming and wide application. It has the advantages of colorless, transparent, high efficiency, low toxicity, wide use and low cost. It can be used in PU foam plastics, UP, EP and other fields. Due to its dual functions of flame retardant and plasticizing, the fire retardant of phosphorus based fabrics has been paid attention to, including phosphate, halophosphate, compound phosphate and its derivatives, polyphosphate and red phosphorus.

Compared with ionic surfactants, nonionic surfactants have less foam generation and are less stable. Some surfactants are easily soluble in water and can't reduce the surface tension below 30dyne / cm. For example, alkyne glycol system, organic silicon system (Tegopren) and fluorine (perfluorooctanoate) surfactant are very water-soluble and can reduce surface tension to below 25dyne/cm. They are all effective defoamers. The mechanism of defoaming is to replace the foaming surface film produced by easily foaming surface active agents with completely different membranes. The surface tension of the defoamer must be lower than that of the surfactant, so that the defoamer can be used spontaneously. It was developed on the existing membrane.

Alkylglycosides are alkylglycosides synthesized from glucose and fatty alcohol. They are widely used in real life. There may also be many friends who don't know it very well. Here we will give you a detailed introduction of its performance characteristics.

The environmental problem is a concomitant problem of industrial development. Today, the major textile exporters all over the world have launched "green products" and "environmental protection products", we should pay attention to environmental protection and ecological indicators, and strive to develop green surfactants with good environmental compatibility, excellent ecology and excellent performance.

In order to adapt to the international development trend, the surfactant industry in China started late and the foundation was weak. In order to adapt to the international development trend, it should focus on the development of glycoside surfactants; systematically research and develop soybean phospholipid surfactants, which have both surface activity and biological activity, and are special surfactants; develop sucrose fatty acid ester series products, sucrose fatty acid ester has non-toxic,

In the building materials, most of the building plastics are flammable materials, a few are flammable materials. Plastic has the characteristics of high combustion heat, high gun temperature, fast combustion speed, releasing a lot of smoke and toxic gases in fire. Therefore, building plastics must have flame retardant properties. Professional flame retardant manufacturers will introduce the flame retardant treatment methods of building materials to you.

Alkyl polyglycoside refers to the synthesis of alkyl polyglycoside with glucose and fatty alcohol. It is widely used in real life, and many friends may not know it very well. Let's introduce its performance characteristics.

Surfactant plays an important role in emulsion polymerization of industrial scale polymer production. Emulsion polymerization needs four components: water, monomer, surfactant and initiator. The concentration of surfactant in the system should be higher than the critical micelle concentration to ensure the formation of micelles.

The solubilization of surfactant promotes the supersaturation of oxygen in aqueous solution, which is equivalent to increasing the saturated solubility of oxygen in aqueous solution. The saturation solubility of oxygen in aquaculture water is generally less than 9 mg / L. the addition of surfactant can increase the saturation solubility of oxygen in aquaculture water.

It can produce rich and delicate bubbles. Because of these delicate bubbles, the friction of clothing, especially fine clothing, such as wool and silk products in washing machine, is reduced, which is beneficial to fabric protection.

Some surfactants can be used to disperse fine solid particles (especially pigments) in liquids. Surfactants attach to pigment particles by selective adsorption.

Biosurfactants have been widely used in many fields, such as industry and agriculture, medicine, health and environmental protection. It has the characteristics of biodegradation and low toxicity. But so far, on the economic benefits, it is not able to compete with the synthetic chemical products in the market, so much work needs to be done.

Surfactant plays an important role in the production of building materials. With the rapid development of China's construction industry, building materials as a supporting element of the construction industry has also been included in the key research and development objects. How to reasonably use surfactants in the production process of building materials, and how to research and explore the types of surfactants with high cost performance have become the important tasks of the relevant research and development personnel in China's construction industry.

The paint may produce high surface tension during spraying and maintain the high surface tension until sprayed onto the bottom, so the initial wetting effect is not good. Surfactants can be used to change this state, but it is necessary to choose them because the amplitude and speed of surfactant reducing dynamic surface tension are different. The effect of water soluble surfactants on reducing dynamic surface tension is very small, but not easy to dissolve in water.

Surfactants are widely used in daily chemical industry and play an important role in metal protection industry. Surfactant can make metal protection effect better, save materials and energy, and solve a series of practical problems. At present, with the rapid development of surfactant industry at home and abroad, its application technology has become one of the hot spots in metal protection industry.

Some surfactants can be used to disperse small solid particles (especially pigments) in liquids. Alkylglycosides are attached to pigment particles by selective adsorption.

Surfactant molecules are composed of two distinct parts: one is the lipophilic group (also known as hydrophobic group) which has affinity with oil, and the other is the hydrophilic group (also known as hydrophobic group) which has affinity with water. The structure of surfactant makes it soluble in water, hydrophilic group is attracted by water molecules, and lipophilic group is repelled by water molecules. In order to overcome this unstable state, we have to occupy the surface of the liquid surface, extend the lipophilic group to the atmosphere, and the hydrophilic group to the water.

One of the important applications of surfactants in coating industry is as wetting agent. To improve the wettability of pigment and substrate surface. Wetting generally refers to using liquid to displace air on the surface of solid, but wetting is also related to reducing the interfacial tension between solid and liquid.