纳米SiO2颗粒稳定非水相泡沫的排液行为研究

doi:10.3969/j.issn.2097-2806.2024.07.001

日用化学工业（中英文） ›› 2024, Vol. 54 ›› Issue (7): 751-758.doi: 10.3969/j.issn.2097-2806.2024.07.001

• 基础研究 • 下一篇

纳米SiO₂颗粒稳定非水相泡沫的排液行为研究

高婷婷¹,燕永利^1,^*(),张随望^2,³,陈钰^2,³,贺炳成⁴

1.西安石油大学化学化工学院，陕西西安 710065
2.中国石油长庆油田分公司油气工艺研究院，陕西西安 710021
3.低渗透油气田勘探开发国家工程实验室，陕西西安 710021
4.中国石油天然气股份有限公司长庆油田分公司采油十厂采油工艺研究所，甘肃庆城 745100

收稿日期:2023-09-06 修回日期:2024-06-13 出版日期:2024-07-22 发布日期:2024-07-26
基金资助:
国家自然科学基金资助项目(22272126);国家自然科学基金资助项目(21773183);陕西省自然科学基金资助项目(2018JM2011);西安石油大学研究生创新与实践能力培养项目(YCS22214216)

Study on the drainage behavior of non-aqueous foams stabilized by nano-silica particles

Tingting Gao¹,Yongli Yan^1,^*(),Suiwang Zhang^2,³,Yu Chen^2,³,Bingcheng He⁴

1. College of Chemistry & Chemical Engineering, Xi’an Shiyou University, Xi’an, Shaanxi 710065, China
2. Oil & Gas Technology Research Institute, Petro China Changging Oilfield Company, Xi’an, Shaanxi 710021, China
3. National Engineering Laboratory for Exploration and Development of Low-Permeability Oil & Gas Fields, Xi’an, Shaanxi 710021, China
4. The 10th Oil Production Plant, Changqing Oilfield Branch Company, CNPC, Qingcheng, Gansu 745100, China

Received:2023-09-06 Revised:2024-06-13 Online:2024-07-22 Published:2024-07-26
Contact: *E-mail: yylhill@163.com

摘要/Abstract

摘要：

非水相泡沫在石油化工、食品化工、日用化工和生物医药等行业有着广泛的应用，但非水相溶剂本身的低表面张力和低介电常数决定了其难以形成稳定的泡沫，而纳米SiO₂颗粒在发泡及稳泡领域的独特优势正得到越来越多的关注。本文通过二氯二甲基硅烷（DCDMS）对14 nm的SiO₂颗粒进行表面润湿性改性，研究纳米SiO₂颗粒润湿性对非水相泡沫排液行为的影响。研究发现：随纳米SiO₂颗粒表面润湿性的增大，在非水相溶剂中形成的泡沫体积呈现先增大后减小的趋势；非水相溶剂极性的增强，其发泡性能呈现逐渐增强的趋势，但在非极性溶剂中不能形成有效的泡沫。所形成的非水相泡沫排液过程分为排液初期、中期、末期三个阶段，随纳米SiO₂颗粒表面润湿性的增大，泡沫消泡半衰期呈现先增大后减小的趋势；强极性溶剂泡沫排液半衰期可达45 min，中等极性溶剂泡沫排液半衰期可达60 min，且在光学显微镜下观察到随排液时间的增加，泡沫粒径逐渐增大，形状逐渐趋于多边形。

关键词: 纳米SiO₂颗粒, 润湿性, 非水相泡沫, 排液曲线, 排液半衰期

Abstract:

Non-aqueous foams have a wide range of applications in petrochemical industry, food industry, daily chemical industry and biomedical industry. However, the low surface tension and low dielectric constant of non-aqueous solvents lead to the difficulty in forming stable foams. The unique advantages of nano-silica particles in foaming and foam stabilization are getting more and more attention. In this work, the surface wettability of 14 nm nano-silica particles was modified with dichlorodimethylsilane （DCDMS）. The effects of wettability of these nano-silica particles on the drainage behaviors of several non-aqueous foams were studied. It was found that, with the increase of the polarity of non-aqueous solvents, the foaming performance showed a gradually increasing trend. The drainage process for non-aqueous foam could be divided into three stages: The initial stage, the middle stage, and the end stage. With the increase of the surface wettability of nano-silica particles, the half-life of foam was first increased and then decreased. The half-life of foams of highly polar solvents could reach 45 min, and the half-life of foams of moderately polar solvents could reach 60 min. Under optical microscope, it was observed that with drainage, the bubble size of foams gradually increased and the shape gradually became polygonal.

Key words: nano-silica particle, wettability, non-aqueous foam, drainage curve, drainage half-life

中图分类号:

TQ423

高婷婷, 燕永利, 张随望, 陈钰, 贺炳成. 纳米SiO₂颗粒稳定非水相泡沫的排液行为研究[J]. 日用化学工业（中英文）, 2024, 54(7): 751-758.

Tingting Gao, Yongli Yan, Suiwang Zhang, Yu Chen, Bingcheng He. Study on the drainage behavior of non-aqueous foams stabilized by nano-silica particles[J]. China Surfactant Detergent & Cosmetics, 2024, 54(7): 751-758.

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纳米SiO₂颗粒稳定非水相泡沫的排液行为研究

Study on the drainage behavior of non-aqueous foams stabilized by nano-silica particles

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