カチオン領域における両性界面活性剤混合液の濃度が過冷却に及ぼす影響

抄録

In recent years, solid-liquid two-phase mixtures called ice slurry, which consist of water and fine ice particles, have attracted attention in food management. One method of producing ice slurry is the supercooling method, in which the liquid is cooled to a supercooled state and then the supercooling is dissipated. However, the supercooled state is unstable. Therefore, active control of the undercooled state is necessary. In their study, the authors investigated the active control of supercooling by the adsorption of surfactant molecules to the interface by adding a nonionic surfactant to pure water. The results revealed that supercooling can be actively controlled by the concentration of nonionic surfactant. In this study, we measured the average supercooling degree of amphoteric surfactant mixtures at pH3 using SUS304 vessels for each concentration change below and above the critical micelle concentration (C.M.C.) to clarify the relationship between pH and the average supercooling degree of the amphoteric surfactant mixtures.