What are the classifications of surfactants?
Anionic surfactant; 2. Cationic surfactant; 3. Zwitterionic surfactant; 4. Nonionic surfactant. Surfactant is a substance that can significantly reduce the surface tension of the target solution.
What are the hazards of surfactants?
Biological changes caused by surfactants and their metabolites in the body, that is, the possible toxic and side effects to the body include acute toxicity, subacute toxicity, chronic toxicity, effects on reproduction, embryo toxicity, teratogenicity, Mutagenicity, carcinogenicity, sensitization, hemolysis, etc.
Difference Between Polyethylene Glycol and Polyvinyl Alcohol
Polyethylene glycol is the polymerization of ethylene glycol into ether, the polymer unit is ether, polyvinyl alcohol is the copolymerization of vinyl bond, and the polymer unit is alcohol.
Classification and performance of green surfactants
Surfactants have caused serious harm to the human body and the environmental ecosystem in the process of production and use. Adding a certain amount of surfactant solvent to the detergent can enhance the solubility and detergency of the detergent, but due to the toxicity of these solvents, it will have a significant irritating effect on the skin. Extensive use of surfactants is also potentially harmful to ecosystems.
What surfactants are used in oil extraction?
Due to the high viscosity and poor fluidity of heavy oil, it brings many difficulties to exploitation. In order to exploit these heavy oils, sometimes an aqueous solution of surfactants needs to be injected downhole to convert the high-viscosity heavy oil into a low-viscosity oil-in-water emulsion, which is pumped to the surface.
Forms and applications of fatty amines
Aliphatic amine refers to a large class of organic amine compounds with carbon chain length in the range of C8-C22. Like general amines, it is divided into four categories: primary amine, secondary amine, tertiary amine and polyamine. , tertiary amines depend on the number of hydrogen atoms in ammonia replaced by alkyl groups.
Domestic industrial sewage treatment agent - detergent demulsifier
Detergent wastewater will pollute the environment. Even if phosphorus-free household cleaning products are promoted, the wastewater caused by it still cannot be discharged directly. Detergent demulsifier can clarify and purify the pre-treatment of domestic sewage and industrial washing wastewater, reduce the difficulty of treatment in the middle and later stages, and also form a good foundation.
Defoaming method for producing a large amount of foam when the concentration of surfactant is increased
When the air enters the liquid, because it is insoluble in water, it will be separated into many bubbles by the liquid when there is an external force, forming an uneven system. When the air enters the liquid to form a foam, the contact area between the gas and the liquid increases, and the free energy of the system also increases.