Study on Viscosity Properties of Washing Products in Different Systems
The viscosity performance of three laundry detergent matrices and one detergent matrix at different temperatures was investigated,and the viscosity performance of detergent products with different surfactant systems at 5 ℃,-5 ℃ and 25 ℃ was discussed.The experimental results showed that the flowability of the laundry detergent system mainly composed of sodium fatty alcohol polyoxyethylene ether sulfate(AES)and fatty alcohol polyoxyethylene ether(AEO)significantly decreased under low temperature conditions.Among them,the viscosity of the AES laundry detergent system reached 50000 mPa.s at a NaCl concentration of 5%;In the detergent system,the viscosity shows a trend of first increasing and then decreasing with the increase of NaCl.The laundry detergent formula system mainly composed of linear linear alkylbenzene sulfonate(LAS)maintains the stability of viscosity at room temperature,and the viscosity drops to about 2000 mPa.s at low temperature,showing excellent temperature adaptability and no quality abnormalities such as layering and turbidity under low temperature conditions.This research result not only improves the application efficiency of detergents in low temperature environments,but also provides important basis for the optimization of detergent formulas.
surfactantlaundry detergentlow temperature viscositystability