摘要
在20℃下,研究了复配乳化剂及助乳化剂的含量、HLB值、甲醇含量、乳化时间及转速等对甲醇柴油乳液稳定性的影响规律。研究结果表明,随着复配乳化剂及助乳化剂的含量、HLB值和转速的增大,乳液的稳定性呈现先升高后降低的趋势。随着乳化时间的延长,稳定性先升高后趋于基本稳定。随着甲醇含量的增大,乳液的稳定性逐渐降低。实验得到的适宜操作参数:乳化时间为2 min、转速为5×2 800 r·min-1、HLB值为4.5、乳化剂及助乳化剂质量分数均为3%、甲醇质量分数为15%。测得Sauter平均直径D=13μm。
Effect of methanol content, different kinds and contents of emulsifying agent and co - emulsifying agent, HLB value, emulsifying time and stirring speed on the stability of methanol - diesel emulsions was investigated under 20 ℃. Experimental results showed that the stability of the emulsion firstly increases and then decreases with the increase of content of blend emulsifying agent and co - emulsifying agent, as well as HLB value and stirring speed. As the extension of emulsifying time, the stability of the emulsion increases firstly and then gradually reached a plateau. The stability of the emulsion decreases with the augment of the methanol content. Based upon the experimental results the suitable operating parameters were identified as： emulsifying time,2 min ; stirring speed, 5 ×2800r·min-1 ; HLB value,4.5 ; content of both the emulsifying agent and co -emulsifying agent,3% for each ;methanol content, 15%. Sauter mean diameter of the emulsion particles was measured as 13 μm.
出处
《日用化学工业》
CAS
CSCD
北大核心
2014年第7期366-369,382,共5页
China Surfactant Detergent & Cosmetics
基金
国家自然科学基金资助项目(21206153)
山西省青年科技研究基金资助项目(2010021007-2)
中北大学大学生创新创业训练项目(201377)
关键词
甲醇柴油乳液
稳定性
乳化效率
methanol - diesel emulsion
stability
emulsification efficiency
