硅氟两亲聚合物在柴油/水体系中的分水效能及机理

doi:10.13218/j.cnki.csdc.2017.04.004

日用化学工业 ›› 2017, Vol. 47 ›› Issue (4): 197-201.doi: 10.13218/j.cnki.csdc.2017.04.004

硅氟两亲聚合物在柴油/水体系中的分水效能及机理

张乘风, 刘茜, 白雪丽, 薛丹丹, 孙慧燕, 张剑, 张越

山西大学化学化工学院,山西太原 030006

收稿日期:2017-01-09 发布日期:2019-03-20
通讯作者: 张越,副教授,硕士生导师,电话:18636868303,E-mail:zyif0351@163.com。
作者简介:张乘风(1989-),男,山东人,硕士研究生,电话:18434395706,E-mail:18434395706@163.com。
基金资助:
山西省自然科学基金资助项目(2014011014-5)

Water separation performance and mechanism of fluoro-silicone amphiphilic polymers in diesel oil-water emulsion system

ZHANG Cheng-feng, LIU Xi, BAI Xue-li, XUE Dan-dan, SUN Hui-yan, ZHANG Jian, ZHANG Yue

College of Chemistry and Chemical Engineering,Shanxi University,Taiyuan,Shanxi 030006,China

Received:2017-01-09 Published:2019-03-20

摘要/Abstract

摘要： 对4种含氟链段聚合度不同的硅氟聚合物在柴油/水体系中的分水效能进行了评价,并通过界面张力和界面黏弹性研究了其分水机理。结果表明,随着含氟链段聚合度的增加,其油水分离时间先减小后增大。含氟单体平均聚合度为16的聚合物质量浓度为0.2 g/L时,在23 s内实现柴油/水的完全分离。界面张力不是影响分水效能的主要因素,该类聚合物主要通过降低界面膜黏弹性实现有效分水。

关键词: 硅氟聚合物, 分水效能, 界面黏弹性

Abstract: Water separation efficacy of diesel oil-water emulsion system of four kinds of fluoro-silicone polymer with different degree of polymerization of the fluorinated chain was evaluated,and the mechanism for such phenomena was studied via interfacial tension and interfacial viscoelasticity measurements.Results show that,following the increase of degree of polymerization of the fluorinated chain,time needed for diesel oil-water separation decreases firstly and then increases.In case the degree of polymerization of the fluorinated chain achieves 16 and the mass concentration of fluoro-silicone polymer achieves 0.2 g/L,complete separation of diesel oil and water can be performed within 23 s.Interfacial tension is not the main factor affecting the water separation efficacy.Effective water separation of this kind of polymer is mainly caused by reduction of viscoelasticity of the interfacial film.

Key words: fluoro-silicone polymer, water separation performance, interfacial viscoelasticity

中图分类号:

TQ423.4

张乘风, 刘茜, 白雪丽, 薛丹丹, 孙慧燕, 张剑, 张越. 硅氟两亲聚合物在柴油/水体系中的分水效能及机理[J]. 日用化学工业, 2017, 47(4): 197-201.

ZHANG Cheng-feng, LIU Xi, BAI Xue-li, XUE Dan-dan, SUN Hui-yan, ZHANG Jian, ZHANG Yue. Water separation performance and mechanism of fluoro-silicone amphiphilic polymers in diesel oil-water emulsion system[J]. China Surfactant Detergent & Cosmetics, 2017, 47(4): 197-201.

参考文献

[1] 杨丽娜,刘思秀.直馏柴油复合脱酸剂研究[J].辽宁石油化工大学学报,2011,31(1):17-20.
[2] 闫方元,韩宏志,李越.催化柴油氧化脱硫的研究[J].化学与粘合,2013,35(1):33-35,39.
[3] 马挺,李京浩,王仁静,等.柴油生物脱硫乳状液的破乳[J].化工学报,2005,56(4):694-698.
[4] Rondón M,Bouriat P,Lachaise J,et al.Breaking of water-in-crude oil emulsions.1.physicochemical phenomenology of demulsifier action [J].Energy & Fuels,2006,20(4):1600-1604.
[5] Fadda A A,Fouad R R,Atta A M.Demulsification of crude oil emulsion [M].Germany:Lambert Academic Publishing,2012.
[6] Pensini E,Harbottle D,Yang F,et al.Demulsification mechanism of asphaltene-stabilized water-in-oil emulsions by a polymeric ethylene oxide-propylene oxide demulsifier [J].Energy & Fuels,2014,28(11):6760-6771.
[7] Zhang Jian,Jing Bo,Fang Shenwen,et al.Synthesis and performances for treating oily wastewater produced from polymer flooding of new demulsifiers based on polyoxyalkylated N,N-dimethylethanolamine [J].Polymers for Advanced Technologies,2015,26(2):190-197.
[8] Daniel-David D,Le Follotec A,Pezron I,et al.Destabilisation of water-in-crude oil emulsions by silicone copolymer demulsifiers [J].Oil & Gas Science and Technology-Rev IFP,2008,63(1):165-173.
[9] Lobato M D,Pedrosa J M,Lago S.Effects of block copolymer demulsifiers on langmuir films of heavy and light crude oil asphaltenes [J].Energy & Fuels,2014,28(2):745-753.
[10] Li Jinlong,Wang Jianhua,Li Chunsheng,et al.Silicone-polyether copolymers as new steam turbine oil demulsifiers [J].Journal of Petroleum Science and Technology,2016,6(2):84-89.
[11] Li Yifei,Wang Xi,Zhang Huimin,et al.Interfacial and demulsifying behavior of novel fluorinated hyperbranched polymers [J].Journal of Surfactants and Detergents,2014,17(5):977-984.
[12] 张越,颉蕊丽,阎育才,等.一种润滑油抗乳化剂及其制备方法:ZL201110094488.5 [P].2011-10-09.
[13] Zhang Yue,Wang Yan,Zhang Huimin,et al.Synthesis and surface-active behavior of new fluorinated hyperbranched polymer [J].Journal of Surfactants and Detergents,2014,17(5):967-975.
[14] Zhang Yue,Yan Yucai,Wang Yan,et al.The synthesis and solution properties of hyperbranched polyglycerols modified with hexafluorobutyl acrylate [J].Colloids and Surfaces A:Physicochemical and Engi-neering Aspects,2013,436:563-569.
[15] 王玺,张越,张慧敏,等.线形-枝状碳硅两亲嵌段聚合物的合成与表面性能[J].精细化工,2015,32(5):505-509.
[16] Zhang Lifeng,He Guijin,Ye Dengfeng,et al.Methacrylated hyperbranched polyglycerlo as a high-efficiency demulsifier for oil-in-water emulsions [J].Energy & Fuels,2016,30(11):9939-9946.
[17] 颉蕊丽,荆群,闫育才,等.氟改性超支化缩水甘油醚的抗乳化性能研究[J].山西大学学报,2011,34(S2):66-69.
[18] Pereira J C,Delgado-Linares J,Scorzza C,et al.Breaking of water-in-oil emulsions.4.Estimation of demulsifier surfactant performance to destabilize the asphaltenes effect [J].Energy & Fuels,2011,25(3):1045-1050.

硅氟两亲聚合物在柴油/水体系中的分水效能及机理

Water separation performance and mechanism of fluoro-silicone amphiphilic polymers in diesel oil-water emulsion system

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