Mondal Mithun G, Pratap Amit Prabhakar
Department of Oils, Oleochemicals and Surfactant Technology, Institute of Chemical Technology.
J Oleo Sci. 2016 Aug 1;65(8):663-70. doi: 10.5650/jos.ess15276. Epub 2016 Jul 15.
Esterquat cationic softener is basically the class of surface active quaternary ammonium compounds. Esterquat compounds were synthesized and their surface behavior, antibacterial activity and Textile softening properties were investigated. Easily found cheap material was used to synthesize cationic fabric softeners. This fabric softener will be a good for commercially and industrially important because their emulsify activity, rewettability dispersing power and softness. Free fatty acids were derived from tallow oil and were treated with triethanolamine and mono-ethanolamine at 140°C. This diester was quaternaries with dimethyl sulphate and benzyl chloride. The synthesized esterquat compounds were characterized by its cationic content, 1H NMR and FT-IR analysis. In addition to the cationic content, surface tension, CMC (critical micelle concentration), rewettability, fabric softening, emulsification and dispersing power were determined as their surface-active properties. The fabric softening activity of esterquat and esteramide prepared from DMS was better softening activity of fabrics compared to untreated cotton and polyester fabrics cloth. The presented result shows that the esterquat made from BCl exhibit the best dispersing power. The esterquat made from DMS both in TEA and MEA shows good rewettability was determined.
酯基季铵盐阳离子柔软剂基本上是一类表面活性季铵化合物。合成了酯基季铵盐化合物，并对其表面行为、抗菌活性和织物柔软性能进行了研究。使用容易找到的廉价材料合成阳离子织物柔软剂。这种织物柔软剂在商业和工业上具有重要意义，因为它们具有乳化活性、再润湿性、分散力和柔软性。从牛油中提取游离脂肪酸，并在140°C下用三乙醇胺和单乙醇胺处理。该二酯用硫酸二甲酯和苄基氯进行季铵化。通过阳离子含量、1H NMR和FT-IR分析对合成的酯基季铵盐化合物进行了表征。除了阳离子含量外，还测定了表面张力、临界胶束浓度（CMC）、再润湿性、织物柔软性、乳化和分散力等表面活性性能。与未处理的棉织物和聚酯织物相比，由硫酸二甲酯制备的酯基季铵盐和酯酰胺对织物具有更好的柔软活性。结果表明，由苄基氯制备的酯基季铵盐具有最佳的分散力。由硫酸二甲酯在三乙醇胺和单乙醇胺中制备的酯基季铵盐具有良好的再润湿性。
