氯化钠对月桂酰基甘氨酸钠性质与性能的影响  

Influence of NaCl on the Properties and Performances of Sodium Lauroyl Glycinate

作　　者：张龙龙 张睿哲 胡学一 方云 孙洋 李华山 ZHANG Longlong;ZHANG Ruizhe;HU Xueyi;FANG Yun;SUN Yang;LI Huashan(The Key Laboratory of Synthesis and Biological Colloids(Ministry of Education),School of Chemical and Material Engineering,Jiangnan University,Wuxi,Jiangsu 214122,China;Nanjing Sinolion New Material Co.Ltd,Nanjing,Jiangsu 210009,China)

机构地区：[1]江南大学合成与生物胶体教育部重点实验室,化学与材料工程学院,江苏无锡214122 [2]南京华狮新材料有限公司,江苏南京210047

出　　处：《中国洗涤用品工业》2024年第5期67-73,共7页China Cleaning Industry

摘　　要：研究氯化钠(NaCl)对月桂酰基甘氨酸钠(SLGly)的表面化学性质和应用性能的影响。在30℃下,当NaCl含量增加至w_(NaCl)∶w_(SLGly)=8∶92时,30 wt%SLGly-NaCl混合溶液开始变混浊,且随NaCl含量增加而更加混浊,表明NaCl不利于SLGly在水中溶解。SLGly的cmc和γcmc分别为5.62 mmol/L和40.5 mN/m,随NaCl含量增加逐渐降低。SLGly的起泡性和稳泡性,在w_(NaCl)∶w_(SLGly)为0∶100~8∶92范围内随NaCl含量增加逐渐降低,在8∶92~20∶80范围内随NaCl含量增加逐渐升高。而其乳化性在w_(NaCl)∶w_(SLGly)为0∶100~8∶92范围内随NaCl含量增加逐渐上升,在8∶92~20∶80范围内随NaCl含量增加逐渐下降。SLGly的润湿性和去污性均随NaCl含量增加而逐渐降低。The effect of NaCl on the surface chemical properties as well as the application performances of sodium lauroyl glycinate(SLGly)was investigated in this paper.The 30 wt%SLGly-NaCl solution became turbid at 30°C when the NaCl content increased to w NaCl:w SLGly of 8:92,and became increasingly turbid with the increase of NaCl content,indicating that NaCl was not conducive to the dissolution of SLGly in water.The cmc andγcmc of SLGly were 5.62 mmol/L and 40.5 mN/m,respectively,and gradually decreased with the increasing NaCl content.The foamability and foam stability of SLGly gradually decrease with the increase of NaCl content in the range of w NaCl:w SLGly from 0:100 to 8:92,otherwise progressively increase in the range of 8:92 to 20:80.Meanwhile,the emulsification of SLGly gradually increased with increasing NaCl content in the range of w NaCl:w SLGly from 0:100 to 8:92,and decreased progressively with increasing NaCl content in the range of 8:92 to 20:80.Both the wettability and detergency of SLGly gradually decreased with the increasing NaCl content.

关 键 词：月桂酰基甘氨酸钠 氯化钠 性质 性能 

分 类 号：TQ423[化学工程]