| 摘要: |
| 采用旋转滴界面张力法和残留物含最趋值法考察阴离子乳化剂、助剂和皂液pH值等对皂液-沥青甲苯模拟油 界面张力和乳化沥青IT:存稳定性的影响。结果表明:乳化剂、助剂和皂液pH值等对油水界面张力和贮存稳定性的 影响规律是一致的，两者呈现出较好的相关性;随着乳化剂和羧甲基纤维钠用量的增加,油水界而张力降低，贮存稳 定性变好;随着皂液PH值的升高，界面张力和矿存稳定性分别呈现出变小和变好的趋势，在PH= 11时,界面张力值 最小，贮存稳定性最好;随着缔合型增稠剂T用量的增加，油水界面张力先增加后减小，贮存稳定性先变差后变好， 两者最后都Q于稳定;乳化剂和助剂对油水界面张力和贮存稳定性的影响的由大到小顺序为乳化剂SD-2、缔合型增 稠剂T、羧甲萃纤维素钠。 |
| 关键词: CA砂浆 乳化沥青 乳化剂 助剂 界面张力 贮存稳定性 |
| DOI：10.3969/j.issn.1673-5005.2012.03.030 |
| 分类号:TE 626 |
| 基金项目:中闰石油大然气股份有限公司科学研究与技术开发项H (YFZX-JW-001) |
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| Relationship between stability of anionic asphalt emulsion and oil-water interfacial tension |
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ZHAO Pin-hui1,FAN Wei-yu1,DONG Shuang1,NAN Guo-zhi1,ZHANG Shou-jie2
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(1. State Key Laboratory of Heavy Oil Processing in China University of Petroleum,, Qingdao 266580，China ;2. PetroChina Karamay Lubricant Plant, Karamay 834003, China)
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| Abstract: |
| The influence of aniunic emulsifier, additives and soap solution pH value on the interfacial tension of soap solu-tion-toluene model oil with asphalt and the stability of asphalt emulsion was investigated. The results show that the effect regularities of anionic emulsifier, additives and soap solution pH value on the interfarial tension and the stability have good correlation. The interfacial tension decreases with the emulsifier and CMC content and the pH value of system increasing t which results in higher stability. With the pH value of 11, the interfacial tension is the minimum and the stability is the highest.The interfacial tension decreases first and then increases with associative thickener (T) increasing, while the stability shows an opposite tendency. At last both of them tend towards stability. The emulsifier and additives influencing the interfacial tension and the stability in descending order are emulsifier(SD-2), associative thickener (T) , CMC. |
| Key words: CA mortar asphalt emulsion emulsifier additives interfacial tension stability |
