十二烷基聚氧乙烯基(5)氧化胺的合成及其性能

Synthesis and Properties of Lauryl Polyoxyethylene(5) Amine Oxide

摘要:

以十二胺聚氧乙烯(5)醚(AC-1205)和质量分数30%的双氧水为原料，合成了十二烷基聚氧乙烯基(5)氧化胺表面活性剂，通过质谱和红外光谱对其结构进行表征。结果表明，该表面活性剂具有良好的表面活性，其临界胶束浓度(CMC)为8.13×10-4 mol/L，最低表面张力γCMC为35.6 mN/m，还具有良好的乳化性和抗硬水性，其分水时间为668s，在硬水中的平均稳定性和差示稳定性分别为5级和 ，优于原料AC-1205。

Abstract:

Lauryl polyoxyethylene(5) amine oxide was synthesized from amine ether and 30% of hydrogen peroxide, the chemical structure of which was confirmed using masss pectral fragmentation and FTIR spectroscopic analysis. The results show that the surfactant has good surface activity, the critical micelle concentration(CMC) is 8.13×10-4 mol/L and γCMC is 35.6 mN/m. In addition, the synthesized surfactant also exhibits stronger emulsifying power and excellent hard water resistance, which is better than raw material AC-1205, the water diversion time is 668s, and the average stability and differential stability in hard water are 5 and , respectively.