1, anionic surfactant: stearic acid, sodium dodecyl benzene sulfonate.

2. Cationic surfactant: quaternary ammonium compound

3. zwitterionic surfactants: lecithin, amino acid and betaine.

4. nonionic surfactants: fatty acid glycerides, fatty acid sorbitan (Span) and polysorbate.

Alkali metal: O/W

Alkaline earth metals: not included.

Organic amine: triethanolamine

Sucrose ester: HLB(5~ 13)O/W emulsifier and dispersant.

Fatty acid sorbitan (span): w/o emulsifier

Tween: O/W emulsifier

3. polyoxyethylene type: Myrij (long chain fatty acid ester); Fatty alcohol ester

What is the best surfactant?

JXE-300 (model source: Pinyin abbreviation Gitzo nonionic isomeric alcohol ether as raw material) is a new generation of omni-directional low-foaming nonionic surfactant developed by Gitzo Chemical Company. It has excellent washing and degreasing ability, retains the excellent washing whiteness of isomeric alcohol ether polymer, absorbs the core technology of emulsification and degreasing of JX08-0 1, and has stronger osmotic emulsification ability. Excellent washing whiteness. Soluble in water, ethanol, acetone, chlorine and other solvents, it has good solubility in water and becomes a colorless and transparent liquid. Compatible with anions, anions and cations, and can greatly improve the detergency and cleaning power after adding the formula. Widely used in textile degreasing, industrial cleaning agents, sewage treatment, lubricants and many other fields. It is a world-class raw material in degreasing and linen washing. Can wash fine fabrics such as silk and satin. Without any corrosiveness, it is safe and reliable. The prepared product has stable viscosity in all seasons, no problems such as peeling and delamination in winter, stronger degreasing ability, lower foam, safety and environmental protection, and can be used in textile, export cleaning and other occasions that need environmental protection. It contains no apeo and phosphorus.

What is a surfactant?

Surfactant: A compound that can obviously reduce the surface tension of a solution at a very low concentration.

Emulsifiability: it is the ability to put a liquid in an immiscible liquid and disperse the liquid into fine powder under the action of external force.

Determination of emulsifying capacity: Emulsify the same emulsifier (same concentration, same temperature, same mixing method ...) under the same conditions, and then centrifuge. Those with strong emulsifying ability are not easy to demulsify, and those with poor emulsifying ability are easy to demulsify (delaminate).

Adhesive: The substance that can bond the adhered objects together by bonding is called adhesive.

Iodine value: 100g The mass (g) of iodine absorbed by the sample is called iodine value, that is, the mass fraction of iodine absorbed by the sample.

Medicine is the sum of knowledge, skills and practices based on theories, beliefs and experiences inherent in different cultures, which can be explained or not, and is used to maintain health and prevent, diagnose, improve or treat physical and mental diseases.

Pesticide: The general name of pesticides, herbicides and other drugs used to ensure the growth of crops.

Paint: a substance coated on the surface of an object for decoration and protection.

Dyes: Dyes are substances that can color fibers and other materials, which can be divided into two categories: natural and synthetic.

Karl Fischer titration: The determination of moisture content is a classic test method for micro, trace and constant moisture.

Cowhide temperature: when the temperature rises to a certain extent, the solubility of surfactant increases sharply, which is called cowhide temperature.

HLB value: Hydrophilic-lipophilic balance value, which is used to indicate the hydrophilic or lipophilic capacity of surfactant.

Critical micelle concentration, the lowest concentration at which surfactant molecules associate to form micelles.

Determination of cmc: physical and chemical properties determination method (quasi-real solution → quasi-colloidal solution), absorption spectrometry (trace third component, its absorption spectrum is related to the association state of surfactant, and the spectrum changes obviously near cmc).

What is a surfactant? Classification?

Surface activity: If substance A can reduce the surface tension of substance B, it can usually be said that substance A (solute) has surface activity on substance B (solvent).

The concept of surfactant: a substance that can greatly reduce the surface tension of the solvent and obviously change the surface state of the system when added to the solvent.

Classification methods of surfactants

(1) Surfactants can be divided into nonionic surfactants, anionic surfactants, cationic surfactants and zwitterionic surfactants according to whether they can be dissociated in aqueous solution and the charge types after dissociation.

(2) According to the solubility of surfactants in water and oil, they can be divided into water-soluble surfactants and oil-soluble surfactants;

(3) According to the molecular weight classification, those with molecular weight greater than 10000 can be called polymer surfactants, those with molecular weights between 1000 and 10000 can be called medium molecular weight surfactants, and those with molecular weights between 1000 and1000 can be called low molecular weight surfactants.

What is a surfactant?

Surfactant refers to a substance that can obviously change the interface state of its solution system by adding a small amount.

The role of surfactants:

It has fixed hydrophilic and lipophilic groups and is oriented in the surface energy of solution.

The molecular structure of surfactant is amphiphilic: one end is hydrophilic group and the other end is hydrophobic group; Hydrophilic groups are often polar groups, such as carboxylic acids, sulfonic acids, sulfuric acids, amino groups or amino groups and their salts, as well as hydroxyl groups, amide groups, ether bonds and so on. Can also be used as a polar hydrophilic group; While hydrophobic groups are generally nonpolar hydrocarbon chains, such as hydrocarbon chains with more than 8 carbon atoms.

Surfactants are divided into ionic surfactants (including cationic surfactants and anionic surfactants), nonionic surfactants, amphoteric surfactants, composite surfactants and other surfactants.

What does surfactant mean?

Surfactant refers to a kind of compound that can significantly reduce the surface tension of water at very low concentration. When it reaches a certain concentration, it can be associated to form micelles, which have a series of physical and chemical functions and corresponding practical applications, such as wetting or anti-sticking, emulsification or demulsification, foaming or defoaming, solubilization, dispersion, washing, anticorrosion and antistatic, and become a flexible and diverse fine chemical product. Surfactants are divided into anionic surfactants, cationic surfactants and nonionic surfactants according to their hydrophilic groups. Surfactants are mainly used in washing, textile and other industries, and other applications can cover almost all fine chemical fields. It can be used as cooking agent, waste paper deinking agent, sizing agent, resin barrier control agent, defoamer, softener, antistatic agent, scale inhibitor, softener, degreasing agent, bactericide and algaecide, corrosion inhibitor, etc. Surfactants are also widely used in pharmaceutical industry. In drugs, some volatile oil-soluble cellulose, steroid hormones and many other insoluble drugs can form transparent solutions, and their concentrations can be increased through the solubilization of surfactants. They can be used as bactericides and disinfectants in pharmaceutical industry, and their sterilization effect is attributed to their strong interaction with protein of bacterial biofilm, which makes them denature or lose their functions. These disinfectants have great solubility in water, and can be used for skin disinfection, wound or mucous membrane disinfection, instrument disinfection and environmental disinfection before operation according to their concentration. In the preparation process, it is an indispensable emulsifier, wetting agent, suspending agent, foaming agent and defoaming agent. In the pesticide industry, wettable powder, emulsifiable concentrate and concentrated emulsion all need a certain amount of surfactants. For example, most of the original drugs in wettable powder are organic compounds, which are hydrophobic. Only in the presence of surfactant, the surface tension of water decreases, and the particles can be wetted by water to form an aqueous suspension. Moreover, some granules and powders used for powder spraying also contain a certain amount of surfactants, so as to improve the adhesion and deposition of drugs on the surface of drugs, improve the release speed and expansion area of effective components under wet conditions, and improve the effects of disease prevention and treatment.

What is SLS surfactant?

Sodium dodecyl sulfate (K 12)

Chinese name: sodium dodecyl sulfate (K 12)

English name: sodium lauryl sulfate

CA Token: 15 1-2 1-3

Molecular formula: C 12H25SO4Na

Molecular weight: 288.38

Product features:

Specification powder needle-like appearance white or yellowish powder white or yellowish needle body total alcohol content ≥59.0%≥59.0% petroleum ether extract ≤2.0%≤2.0% ethanol insoluble matter ≤ 6.0% ≤ sodium chloride ≤0.7%≤0.7% moisture ≤3.0%≤3.0% foam content ≥ 65438+.

Product use: This product belongs to anionic surfactant. Soluble in water, good compatibility with anions and nonionic, good emulsification, foaming, penetration, decontamination and dispersion, rich foam and fast biodegradation, widely used in toothpaste, shampoo, washing powder, liquid detergent, cosmetics, pharmacy, papermaking, building materials, chemical industry and other industries.

Packaging, storage and transportation: 20kg paper bag. Store in a cool and ventilated warehouse. Stay away from fire and heat sources. Should be stored separately from oxidant, and should not be mixed. Equipped with corresponding varieties and quantities of fire fighting equipment. The storage area should be equipped with suitable materials to control leakage. This product is flammable and allergic.