Application properties of anionic-cationic surfactant system in laundry detergent formulations

In the formula of washing powder, the anion-cation compound system is also used to remove the anionic nominal active agent in the wastewater of the washing powder factory. The concentration of the residual nominal anionic active agent in the individual foam method can only be reduced to about the negative sixth power of 10X10. Adding a small amount of cationic nominal active agent to the system, the concentration can be reduced to about the negative sixth power of one multiplied by ten. The synergistic effect of such a mixed system also represents the enhancement of many application functions, such as the enhancement of emulsifying ability and wetting ability in washing powder technology. There is a significant difference in the wetting ability between a single-name active agent solution and a 1:1 mixed solution. At the same concentration, the contact angle of the mixture on paraffin is 16°, while the single component is about 100°. The stronger wettability of the mixed system is directly derived from the lower nominal tension value. In the mixed system of anionic-cationic nominal active agents, due to the strong electrostatic attraction between positive and negative ions between molecules, rod-like micelles are easily formed after compounding with each other. Controlling the length of the hydrophobic chain, using a short-chain nominal active agent or adding a hydrophilic group, it is possible to not show the phenomenon of accumulation in the solution, and the nominal activity will be greatly improved compared with a single component. If the ethoxylated quaternary ammonium salts (AQA) in detergent formulations are formulated into detergent technical products, the inherent build-up barrier is overcome, and bleaching agents and bleach activators are enhanced. The compound of anionic-cationic nominal active agent is used in water-based metal washing, and the formula is AESA: BJH-1: OP-10: M550=6: 4: 4: 1 (molar ratio), and according to the quality ratio 9 5: 5. Add Na-CP4 and sodium silicate as auxiliary washing, and dilute to 5% when using, which shows strong decontamination ability and good anti-rust performance.

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