摘要
以SDS（十二烷基硫酸钠）作为乳化剂,利用高速搅拌乳化法制备了含油率（v/v）为5%～50%的煤油-水乳状液,考察了搅拌转速、搅拌时间、SDS浓度、含油率等因素对乳状液的静置沉降稳定性和平均粒径D（4,3）的影响。结果表明：在搅拌转速为15000rpm,搅拌时间120s,SDS浓度10mg/L时,可以得到较稳定的含油率30%的煤油-水乳状液（2hr内稳定性大于85%）；提高搅拌转速、延长搅拌时间、提高乳化剂的含量有利于提高乳状液稳定性；为了制备相同平均粒径的乳状液,含油率高的乳状液需要更高的乳化剂浓度。
The kerosene-water emulsions with oil content（v/v）from 5%to 50% were made by high-speed shear method,with SDS（sodium dodecyl sulfate）as emulsifier.The effect of stirring rate,stirring time,SDS concentration and oil content on the emulsion stability and the mean droplet size D（4,3）were investigated.The experiment results indicated：a stable 30%（v/v）kerosene-water emulsion can be prepared with stirring rate 15000rpm,stirring time 120s,and SDS concentration 10mg/L,whose stability is above85% within 120minutes;the stability of emulsions can be improved by increasing the stirring rate,stirring time and the SDS concentration;to obtain emulsions with the same D（4,3）,higher SDS concentration was necessary for the emulsion with higher oil content.
出处
《四川化工》
CAS
2014年第3期1-5,共5页
Sichuan Chemical Industry
基金
大学生创新创业训练计划项目(S201310656082)
西南民族大学研究生创新型科研项目(CX2013SZ32&CX2014SZ54)
