| Lacquer wax was hydrolysed by sulfuric acid catalysis, and then reacted with sulfoxide chloride to form lacquer wax fatty acyl chloride. The lacquer wax fatty acyl chloride reacted with sodium sarcosine under the weak alkalinity condition by Schotten-Baumann condensation method, and the reaction product was acidified and extracted to obtain the lacquer wax acyl sarcosine. The structure of the lacquer wax acyl sarcosine was confirmed by IR, 1H-NMR and 13C-NMR, and the surface property of the lacquer wax acyl sarcosine sodium was investigated. The results showed that the finished product was lacquer wax acyl sarcosine; the critical micelle concentration (CMC) and surface tension of the lacquer wax acyl sarcosine sodium were 6.733×10-4 mol/L and 22.845 mN/m, respectively, and it had good surface tension. When the concentration was 0.01 mol/L, the time of extracting 10 mL water from atolein was 90 s. For the low polarity solvent, the emulsifying effect was poor. However, the foaming and foam stability properties of the lacquer wax acyl sarcosine sodium were better, the foaming height was 130 mm, and it decreased to 115 mm after 5 min. |
