In recent years, the anaerobic fermentation of food waste to produce volatile fatty acids (VFA) has been widely studied. Hydrolysis is the rate limiting step of anaerobic fermentation of food waste.

Surfactants are often used in industrial industries. For the use of surfactants, most of them are used in the washing and textile industries. For all fine industrial industries, it is impossible to leave the use of surfactants. All our industries related to industry, including the pharmaceutical industry, are inseparable from the use of surfactants. There is also the paper industry, which is also a field of the fine industry. In the paper industry, surfactants are also widely used.

The multi-purpose detergent is used to wash the oil stain on the fabric at 60 ℃, and generally does not contain bleaching agent. Foam should be controlled due to strong mechanical effect during washing. Therefore, the amount of APG used in liquid multipurpose detergents containing anionic surfactants is limited. Table 7 is the reference formula of liquid multi-purpose detergent containing APG.

The multi-purpose detergent is used to wash the oil stain on the fabric at 60 ℃, and generally does not contain bleaching agent. Foam should be controlled due to strong mechanical effect during washing. Therefore, the amount of APG used in liquid multipurpose detergents containing anionic surfactants is limited. Table 7 is the reference formula of liquid multi-purpose detergent containing APG.

There are many problems in the use of halogen-free flame retardants. However, only by understanding the causes and solutions can the problems be solved correctly. Some customers may think that the higher the concentration of halogen-free flame retardants, the better the flame retardancy effect. Therefore, the higher the concentration of halogen-free flame retardants, the flame retardants will change to a certain extent. What should be done if the concentration of halogen-free flame retardants is too high in the use process? Now let's have a look with the halogen-free flame retardant manufacturer.

Optimization of surfactant system suitable for low permeability reservoirs has important guiding significance for improving oil recovery.  

As a grinding aid, surfactant also plays a lubricating role, which can improve the specific surface area of the product, shorten the grinding time and improve the grinding efficiency. Its action mechanism can be summarized as: reducing crushing energy, increasing brittle fracture probability, preventing plastic deformation, controlling flocculation and aggregation of fine particles, strengthening dispersion and adjusting rheological property of slurry.

Magnesium hydroxide is a kind of inorganic flame retardant and smoke suppressant with high filling amount and additive. The flame retardant mechanism is as follows: when magnesium hydroxide is heated at 340-490 ℃, it decomposes and absorbs the heat on the surface of the combustor to achieve the flame retardant effect; At the same time, a large amount of water is released to dilute the oxygen on the surface of the combustibles, and the decomposed active magnesium oxide will adhere to the surface of the combustibles, further preventing the combustion.

Biosurfactants are the secondary metabolites of some microorganisms (bacteria, fungi, yeasts, etc.), which are accumulated in the culture solution in large quantities, causing significant changes in the surface tension, critical micelle concentration and other physical and chemical properties of the culture solution. Researchers usually use high-density fermentation method to make the content of Biosurfactant in the culture liquid reach a large level, and then obtain the finished product of surfactant through separation and purification, which has been applied in environmental pollution treatment and other aspects, and achieved good results.

The application principle of surfactant in water-based metal cleaning agent is to weaken or offset the adhesion of oil on the metal surface through the wetting, penetration, emulsification, dispersion, solubilization and other properties of surfactant, and accelerate the oil to leave the metal surface by mechanical and physical methods and enter the washing liquid to be emulsified, dispersed and suspended or solubilized in micelles.

Biosurfactants can be used as food additives in food industry. Lecithin and its derivatives, fatty lipids containing glycerol, sorbitan, ethylene glycol, derivatives of glycerol monoester, and recently synthesized oligopeptides are widely used as emulsifiers in the food industry. Emulsifiers not only play a role in dispersion, but also play a great role in the formation of appropriate viscosity and texture of products.

As we all know, environmental protection flame retardant is a kind of flame retardant. Environmental protection flame retardant is a composite material based on resin and rubber.

Flame retardant is an additive that can make the polymer not easy to ignite, and the fire makes it burn slowly. According to the classification of elements contained in flame retardants, they can be divided into organic and inorganic flame retardants.

Polyether Polyols (hereinafter referred to as polyether) are prepared by polymerization of initiator (compounds containing active hydrogen groups) with ethylene oxide (EO), propylene oxide (PO), epoxy butane (Bo) in the presence of catalyst.

The contribution of flame retardants to fire safety cannot be underestimated. Zhou Zhengmao said that studies in Europe, the United States and India have shown that flame retardants in upholstered furniture can slow down the spread of fire and provide valuable escape time for people.

Static electricity will disperse the tow to produce wool and broken ends, and it is not easy to wind. Using the ionic properties and moisture absorption of antistatic agents can effectively prevent the accumulation of static electricity. At the same time, the adsorption and orientation of antistatic agents also help to eliminate static electricity.  

In the production of petroleum products, in order to improve and improve the performance of petroleum products, we must also add various additives, which can be divided into antioxidant, antiwear agent, detergent, dispersant, viscosity regulator, pour point depressant, rust inhibitor, fuel energy-saving agent, etc. according to their functions, most of them belong to non-ionic surfactants.

Generally speaking, the cloud point of surfactant aqueous solution can indicate the ability of its hydrophilic group to form hydrogen bonds with water molecules. At the same concentration, the longer the EO chain of non-ionic surfactant, the higher the cloud point of its aqueous solution. This is mainly because the EO chain can form hydrogen bonds with water molecules.

Generally speaking, the dispersing ability of surfactants depends on the molecular weight and the characteristics of hydrophobic groups. Generally, hydrophobic surfactants with large molecular weight diffuse slowly to the particle surface, but they have strong adsorption ability and are not easy to transfer from the surface, which can provide long-term stability of pesticide formulations. Therefore, the molecular weight of hydrophobic groups in surfactants is gradually improving.

Alkyl glucoside APG can be used as crease proofing agent for cotton cloth, powder dispersant for aqueous solution and dust proofing agent in textile industry. APG is suitable for refining, dyeing and other processing.