Study on dyeing mechanism and performance of alkylguanidine switch-controlled circulating Coating foam

Aiming at the recovery and recycling of residual foam in foam dyeing, tetramethylguanidine and dodecane bromide were used as raw materials to synthesize a switch surfactant, dodecyltetramethylguanidine (DTMG), which was Under the influence of ionization, dodecyltetramethylguanidine bicarbonate (DTMG CO2) with good foaming properties is formed by ionization. Its foaming ratio is 11:23 and its half-life is 126 s. It can be regarded as a foaming agent. Used in paint foam staining systems. After the paint foam is dyed, DTMG·CO2 in the residual foam releases CO2 under the action of heating at 80 ℃, and returns to the DTMG structure with poor foam performance, so as to realize the rapid bursting and recovery of the residual foam. This switching process is cyclically reversible. In paint foam dyeing, paint, adhesives, and foam stabilizers have little effect on foam switching and switching cycles. The dyeing effect is not bad. The use of alkylguanidine switches to control foam can be applied to cycles. Paint foam stain.