Sodium dodecylbenzenesulfonate, SDBS for short, white or light yellow powder or flake solid. Hard to volatilize, easily soluble in water, easy to absorb moisture and agglomerate, dissolve in water to form a translucent solution. It has stable chemical properties to alkalis, dilute acids and hard water, and can establish a balanced system with strong acids. It is a commonly used anionic surfactant.
1. Washing action
Sodium dodecylbenzene sulfonate is neutral, sensitive to water hardness, not easy to be oxidized, strong foaming power, high detergency, easy to compound with various additives, low cost, mature synthesis process, application It has a wide range of fields and is an excellent anionic surfactant. It has a significant decontamination effect on granular dirt, protein dirt and oily dirt, especially for the washing of granular dirt on natural fibers. The detergency power increases with the increase of washing temperature, and the effect on protein dirt is higher than that of non-ionic surfaces. Active agent and rich foam. The main use of sodium dodecylbenzene sulfonate is to formulate various types of liquid, powder, granular detergents, cleaners and cleaners.
2. Emulsifying and dispersing agent
As an anionic surfactant, sodium dodecylbenzene sulfonate has good surface activity and strong hydrophilicity, which can effectively reduce the tension of the oil-water interface and achieve emulsification. Therefore, sodium dodecylbenzene sulfonate is widely used in the formulation of emulsions such as cosmetics, printing and dyeing auxiliaries, and pesticides.
3. Antistatic agent
Sodium dodecyl benzene sulfonate can make fabrics, plastics, etc. surface affinity with moisture, and ionic surfactants also have a conductive effect, so that static electricity can leak in time, thereby reducing the danger and inconvenience caused by static electricity.
4. Other functions
In addition to the above-mentioned applications, in textile auxiliaries, it is often used as cotton fabric refining agent, desizing auxiliaries, leveling agent in dyeing, and used as metal degreasing agent in metal electroplating process; used in paper industry Used as resin dispersant, felt detergent, deinking agent; used as penetrating degreasing agent in leather industry; used as anti-caking agent in fertilizer industry; used as air-entraining agent in cement industry and many other aspects or used alone or Use as a co-ingredient.