Cocoyl glycine was synthesized directly from coconut oil and sodium glycinate in yield of 87%. IR, ESI-MS and LC/MS analysis results showed that cocoyl glycine consists of a series of acyl glycines with different acyl...Cocoyl glycine was synthesized directly from coconut oil and sodium glycinate in yield of 87%. IR, ESI-MS and LC/MS analysis results showed that cocoyl glycine consists of a series of acyl glycines with different acyl chain lengths, and the proportion of each component was consistent with the composition of fatty acids derived from coconut oil. The surface tension and the Critical Micelle Concentration (CMC) of corresponding sodium salt were evaluated. The result showed that sodium cocoyl glycinate reduced the surface tension of water to a minimum value of approximately 33 mN·m-1 at CMC of 0.21 mmol·L-1.展开更多
The effects of pH and water hardness on the foaming properties of sodium methyl cocoyl taurate and its performance in combination with zwitterionic surfactants were investigated.The irritation of sodium methyl cocoyl ...The effects of pH and water hardness on the foaming properties of sodium methyl cocoyl taurate and its performance in combination with zwitterionic surfactants were investigated.The irritation of sodium methyl cocoyl taurate and its application in a shampoo formula were also studied.According to the result of experiment,sodium methyl cocoyl taurate had a wide pH stability range and good resistance to hard water,and it showed good synergistic thickening effect with betaine surfactants,especially when mixed with acyl hydroxysulfo betaine;The skin cholesterol dissolution test and red blood cell hemolysis test showed that its irritation was very low.Sodium methyl cocoyl taurate was applied to the transparent shampoo formula,and the sulfate-free transparent shampoo thus prepared had good stability and low eye irritation.It was both mild and non-irritating to skin.展开更多
从泡沫量与结构、结膏温度、质地以及稳定性等方面,研究了4种不同乳化剂对以椰油酰甘氨酸钠为主的结晶型洁面膏的影响。结果表明,聚甘油类乳化剂Hostacerin®DGSB使配方结膏温度降低,同时配方具有更高的硬度、浓稠度以及黏性,显著...从泡沫量与结构、结膏温度、质地以及稳定性等方面,研究了4种不同乳化剂对以椰油酰甘氨酸钠为主的结晶型洁面膏的影响。结果表明,聚甘油类乳化剂Hostacerin®DGSB使配方结膏温度降低,同时配方具有更高的硬度、浓稠度以及黏性,显著提高配方的稳定性;磷酸酯类乳化剂Hostaphat®KW340D能提高洁面膏的泡沫稳定性,明显提高配方的结膏温度以及与珠光剂的相容性,也能明显提高硬度、浓稠度、黏性以及配方的稳定性。液晶型乳化剂Plantasens®Emulsifier HP 30能显著提高泡沫的细密程度与稳定性,硬度提高的同时也有比较好的铺展性;而聚醚类乳化剂Eumulgin®S21与体系的兼容性差,导致泡沫量明显减少,泡沫的稳定性也最差,虽然能提高结膏温度,但加速洁面膏的失稳过程,因此不适用于该体系。展开更多
文摘Cocoyl glycine was synthesized directly from coconut oil and sodium glycinate in yield of 87%. IR, ESI-MS and LC/MS analysis results showed that cocoyl glycine consists of a series of acyl glycines with different acyl chain lengths, and the proportion of each component was consistent with the composition of fatty acids derived from coconut oil. The surface tension and the Critical Micelle Concentration (CMC) of corresponding sodium salt were evaluated. The result showed that sodium cocoyl glycinate reduced the surface tension of water to a minimum value of approximately 33 mN·m-1 at CMC of 0.21 mmol·L-1.
文摘The effects of pH and water hardness on the foaming properties of sodium methyl cocoyl taurate and its performance in combination with zwitterionic surfactants were investigated.The irritation of sodium methyl cocoyl taurate and its application in a shampoo formula were also studied.According to the result of experiment,sodium methyl cocoyl taurate had a wide pH stability range and good resistance to hard water,and it showed good synergistic thickening effect with betaine surfactants,especially when mixed with acyl hydroxysulfo betaine;The skin cholesterol dissolution test and red blood cell hemolysis test showed that its irritation was very low.Sodium methyl cocoyl taurate was applied to the transparent shampoo formula,and the sulfate-free transparent shampoo thus prepared had good stability and low eye irritation.It was both mild and non-irritating to skin.
文摘从泡沫量与结构、结膏温度、质地以及稳定性等方面,研究了4种不同乳化剂对以椰油酰甘氨酸钠为主的结晶型洁面膏的影响。结果表明,聚甘油类乳化剂Hostacerin®DGSB使配方结膏温度降低,同时配方具有更高的硬度、浓稠度以及黏性,显著提高配方的稳定性;磷酸酯类乳化剂Hostaphat®KW340D能提高洁面膏的泡沫稳定性,明显提高配方的结膏温度以及与珠光剂的相容性,也能明显提高硬度、浓稠度、黏性以及配方的稳定性。液晶型乳化剂Plantasens®Emulsifier HP 30能显著提高泡沫的细密程度与稳定性,硬度提高的同时也有比较好的铺展性;而聚醚类乳化剂Eumulgin®S21与体系的兼容性差,导致泡沫量明显减少,泡沫的稳定性也最差,虽然能提高结膏温度,但加速洁面膏的失稳过程,因此不适用于该体系。