People usually evaluate their detergency effect through the foaming volume of detergent. The rich and delicate foam will contact with the stains on clothing more extensively to achieve the effect of decontamination. But contrary to the conventional thinking, the more foam is, the better the decontamination effect is. It is evaluated by active molecules, and with the increasing popularity of environmental awareness, At present, low foaming or non foaming detergents are more popular.

From the development trend of surfactants, products with ecological safety, no environmental pollution, strong functionality and low cost are more and more favored by people. Alkyl glycosides are new surfactants in line with this development trend. According to the research, the acute toxicity of APG is very small. The acute toxicity LD is 1000-15000mg / g, the aquatic biological toxicity LD50 is 3-101mg / L, and the biodegradation rate can reach 93.94%.

PP halogen-free flame retardant is a special environment-friendly flame retardant for PP, which belongs to nitrogen phosphorus flame retardant. It is a halogen-free and intumescent flame retardant specially developed for polypropylene. It is polymerized by phosphorus and nitrogen containing chemicals with synergistic effect. It has good compatibility in polypropylene, has little impact on the mechanical properties of plastics, and has excellent processing stability in the processing process.

As a green multifunctional nonionic surfactant, alkyl glycoside has become an important raw material in daily washing industry. In the selected system, the preferred alkyl glycoside is apg1214, and the preferred dosage is 10%. Under these conditions, the addition of alkyl glycosides not only significantly improves the fluffy, softness and antistatic properties of laundry solution, but also has a synergistic effect on the detergency of laundry solution. With the deepening of research, alkyl glycosides will be more and more widely used in laundry detergent.

Cosmetic surfactants are newly developed in recent years. They have higher and stricter requirements for products, such as anti-aging, skin moisturizing, wrinkle removing, whitening and so on. The active ingredients of cosmetics affect the metabolism of the body after being absorbed by the skin to achieve real beauty. The effect should be felt or seen.

The adsorption of surfactants on dirt and the surface of washing articles (from solution) has an important impact on the washing effect. This effect is mainly due to the change of interface and surface properties (such as mechanical, electrical and chemical properties) caused by adsorption.

Cosmetic surfactants are newly developed in recent years. They have higher and stricter requirements for products, such as anti-aging, skin moisturizing, wrinkle removing, whitening and so on. The active ingredients of cosmetics affect the metabolism of the body after being absorbed by the skin to achieve real beauty. The effect should be felt or seen. Sodium pyrrolidone carboxylate (PCA) is a natural moisturizing factor of cosmetics, which has the effects of anti-aging and wrinkle removal. Therefore, PCA is widely used in high-grade cosmetics. Surfactant as emulsifier is very important in emulsion application of cosmetics, mainly concentrated on non-ionic surfactant and polymer emulsifier. Cosmetic emulsion includes double emulsion. W/O, O/W, liquid crystal phase, multiple emulsion; W/O/W, O/W/O, microemulsion and so on. The main products are facial cleanser, moisturizer, cleaning milk, etc. There will be new products coming out in this field.

The properties of alkyl glycosides vary significantly with the alkyl chain length, so the alkyl chain length has a great influence on its application in laundry liquid. At the same time, the amount of alkyl glycosides is also an important factor affecting the quality of laundry detergent.

The development of compound surfactants is suitable for the needs of a variety of pesticide formulations. At present, there are many studies on the compound system of 2 ~ 3 surfactants in China, and there are few studies on the compound system of more than three surfactants. The development of multi surfactant complex system is a new direction of dispersion system research.

Alkyl glycosides are non-toxic and non irritating to human body, and biodegradation is rapid and complete. The final products of degradation are carbon dioxide and water, which has good ecological safety and compatibility. The green characteristics of alkyl glycosides make it have great advantages in the application of laundry detergent.

Alkyl polyglucoside (APG) is a mild surfactant developed in the world since 1990s. These surfactants can be synthesized from renewable plant resources. They not only have broad-spectrum antibacterial activity, but also have the advantages of rapid and complete biodegradation and no pollution to the environment. This paper attempts to take two typical red tide organisms, Prorocentrum dentatum 0201-01 and red tide heterobay algae, as examples to explore the effect of APG surfactants on the growth and killing of red tide organisms, in order to lay a foundation for the development of the application of these compounds in the control of harmful red tide.

In addition to changing the activity of the solution in aqueous solution, that is, reducing its surface tension, various properties related to washing, such as penetration, adsorption, wetting, dispersion, emulsification, gelling and foaming, will change significantly near the critical micelle concentration.

Surfactant has low toxicity and irritation, and has mild bactericidal and algal inhibition effect, which can effectively control the over reproduction of algae. However, it will not cause excessive water transparency, and can effectively promote the improvement of water microenvironment. Because the above surfactants have some functional groups of vitamins and amino acids, it is actually observed that they can promote growth. For example, BS-12 not only has good growth promoting effect, but also has good water quality adjustment, bacteriostasis and algae killing function.

The synthesis methods of alkyl glycosides mainly include trans glycoside method, direct glycoside method, Koenigs Knorr reaction method, enzyme catalysis method and so on.

Surfactants play an important role in pesticide formulations. The new varieties of surfactants developed have also attracted the attention of the pesticide industry. By changing the varieties of surfactants to improve or change the original processing dosage forms of some pesticide varieties, the biological activity is improved, the dosage is reduced, the cost is reduced, and the compatibility with the environment is improved.

Surfactants play an important role in pesticide formulations. The new varieties of surfactants developed have also attracted the attention of the pesticide industry. By changing the varieties of surfactants to improve or change the original processing dosage forms of some pesticide varieties, the biological activity is improved, the dosage is reduced, the cost is reduced, and the compatibility with the environment is improved.

Anionic surfactants such as alkyl naphthalene sulfonate, lignin sulfonate, alkyl thiosuccinate, polyoxyvinyl alkyl aryl sulfonate, etc; Nonionic surfactants such as polyoxyvinyl alkyl ether, polyoxyvinyl alkyl phenyl ether, polyoxyvinyl styryl phenyl ether, polyoxyvinyl alkyl ester, low substituted hydroxypropyl cellulose, hydroxymethyl starch sodium, microcrystalline cellulose, cross-linked polyvinylpyrrolidone, cross-linked carboxymethyl fiber sodium, effervescent disintegrating agent, etc, Single or two or more surfactants can be mixed. The actual production of crystal seeds, such as 20% bensulfuron methyl effervescent tablets, 20% pyrazosulfuron methyl effervescent tablets, 5% imidacloprid effervescent tablets, 18% dichloroquinic acid. Bensulfuron methyl effervescent tablets, 25% bensulfuron methyl effervescent tablets, 25% bensulfuron methyl effervescent tablets, etc.

Alkyl polyglucoside (APG) is a mild surfactant developed in the world since 1990s. These surfactants can be synthesized from renewable plant resources. They not only have broad-spectrum antibacterial activity, but also have the advantages of rapid and complete biodegradation and no pollution to the environment. The effects of APG surfactants on the growth and killing of red tide organisms were discussed in order to lay a foundation for the development of the application of APG surfactants in the control of harmful red tide.

Compared with chemical surfactants, biosurfactants have the advantages of biodegradability, low toxicity and simple production by microbial fermentation. They have a wide application prospect in red tide control. Rhamnolipid biosurfactants produced in the culture of Pseudomonas aeruginosa have strong antibacterial activity.

Alkyl glucosides have the advantages of ordinary nonionic and anionic surfactants: high surface activity, high viscosity, rich foam, fine and stable. It has obvious synergistic effect with other surfactants; It has strong dispersibility to calcium soap and can be used in hard water; Very low irritation to epidermis, mucosa and living cells; It is easy to biodegrade in the natural environment and has less environmental pollution. APG is formed by condensation of starch or its hydrolyzed sugar with fatty alcohol. The source of raw materials is very wide, which has attracted more and more attention in recent years.