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第 36 卷第 3 期 精 细 化 工 Vol.36, No.3
201 9 年 3 月 FINE CHEMICALS Mar. 2019
表面活性剂
N,N-双棕榈酰基对苯二胺二乙基磺酸钠
的合成及性能
金礼俊 1,2 ,唐善法 1,2* ,崔琰奇 1,2 ,郑雅慧 1,2
(1. 长江大学 石油工程学院,湖北 武汉 430100;2. 长江大学 非常规油气湖北省协同创新中心,湖北
武汉 430100)
摘要:以对苯二胺、棕榈酰氯、2-氯乙基磺酸钠为主要原料,经取代和酰化等反应合成了一种磺酸盐型双子表
1
面活性剂——N,N-双棕榈酰基对苯二胺二乙基磺酸钠(DS16-P-16),用 FTIR、 HNMR 对中间体和目标产物进
行了结构表征,并测定了其水溶性、表&界面活性、泡沫性能和乳化性能。结果表明:在 25 ℃时,DS16-P-16
4
的临界胶束浓度(CMC 为 5.01×10 mol/L)是传统表面活性剂十二烷基硫酸钠(SDS)的 6.26%,pC 20 (水的
表面张力降低 20 mN/m 时所需溶液浓度的负对数)为 3.61,表现出更好的降低水表面张力的效率;随着温度和
2
溶液浓度的增大,DS16-P-16 溶液与吉林油田原油的界面张力逐渐降低,且均低于 1×10 mN/m,在 45 ℃下,
2
质量分数为 0.5%的该溶液可将油水界面张力降低至 1.46×10 mN/m;在质量分数为 0.1%时,DS16-P-16 溶液
的初始起泡高度为 28 cm,稳泡率可达 93%,乳状液稳定时间为 437 s 。相同条件下,质量分数为 0.1%的十二
烷基硫酸钠的初始起泡高度为 15 cm,稳泡率为 60%,乳化时间为 128 s 。
关键词:表面活性剂;表面张力;泡沫性能;界面张力;乳化性
中图分类号:TQ630 文献标识码:A 文章编号:1003-5214 (2019) 03-0437-06
Synthesis and Properties of N, N-Dipalmitoyl
p-phenylenediamine Diethyl Sulfonate
1,2
1,2
1,2
JIN Li-jun , TANG Shan-fa 1,2* , CUI Yan-qi , ZHENG Ya-hui
(1. College of Petroleum Engineering, Yangtze University, Wuhan 430100, Hubei, China; 2. Hubei Cooperative
Innovation Center of Unconventional Oil and Gas, Yangtze University, Wuhan 430100, Hubei, China)
Abstract: A sulfonate Gemini surfactant, N,N'-dipalmitoyl p-phenylenediamine diethyl sulfonate (DS16-P-
16) was synthesized by substitution and acylation reaction using p-phenylenediamine, palmitoyl chloride
and sodium 2-chloroethyl sulfonate as main raw materials. The intermediate and target product were
1
identified by FTIR and HNMR. The water solubility, surface/interfacial activity, foaming properties and
emulsifying properties of DS16-P-16 were investigated. The results showed that the critical micelle
–4
concentration (CMC) of DS16-P-16 was 5.01×10 mol/L at 25 ℃, which was 6.26% of traditionalsurfactant
sodium dodecyl sulfate (SDS), pC 20 (the negative logarithm of the concentration of DS16-P-16 solution
required to reduce the surface tension of water by 20 mN/m) was 3.61, indicatedthat DS16-P-16 had a better
ability to reduce water surface tension. With the increase of experimental temperature and solution
concentration, the interfacial tension between DS16-P-16 solution and crude oil in Jilin oilfield gradually
–2
decreased, both were lower than 10 mN/m. At 45 ℃, 0.5% (mass fraction)DS16-P-16 solution could
–2
reduce the oil-water interfacial tension to 1.46×10 mN/m. The initial foaming height of 0.1% DS16-P-16
solution was 28 cm, the foam stabilization rate reached 93%, and the stable time of emulsion was 437 s.
Under the same conditions, the initial foaming height of 0.1% SDS solution was only 15 cm, the foam
stabilization rate was 60% and the emulsification time was 128 s.
收稿日期:2018-09-18; 定用日期:2019-01-22; DOI: 10.13550/j.jxhg.20180695
基金项目:国家自然科学基金(51774049,51474035)
作者简介:金礼俊(1993—),男,硕士生。联系人:唐善法(1965—),男,教授,E-mail:tangsf@126.com。