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日用化学工业（中英文）

日用化学工业（中英文） ›› 2024, Vol. 54 ›› Issue (8): 903-910.doi: 10.3969/j.issn.2097-2806.2024.08.004

• 开发与应用 • 上一篇    下一篇

纳米SiO2表面改性稳定非水相泡沫的实验研究

姚思齐1,燕永利1,*,张随望2,3,陈钰2,3,贺炳成4   

  1. 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:2024-07-22 出版日期:2024-08-22 发布日期:2024-08-21
  • 通讯作者: 燕永利
  • 基金资助:
    国家自然科学基金资助项目(NO 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(YCS22214217)

Study on the non-aqueous foams stabilized by the modified nano-SiO2 particles

Siqi Yao1,Yongli Yan1,*,Suiwang Zhang2,3,Yu Chen2,3,Bingcheng He4   

  1. 1. College of Chemistry & Chemical Engineering, Xi’an Shiyou University, Xi’an, Shaanxi 710065, China
    2. Research Institute of Oil & Gas Technology, Changqing Oilfield Company, PetroChina, 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 Factory,Changqing Oilfield Branch Company, PetroChina, Qingcheng, Gansu 745100, China
  • Received:2023-09-06 Revised:2024-07-22 Online:2024-08-22 Published:2024-08-21
  • Contact: Yongli Yan

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摘要：

非水相泡沫在石油开采、功能材料、日用化工等领域有着广泛的应用，非水相泡沫的研究进展影响着相关行业的发展。然而，由于其自身的界面张力和介电常数较低，致使发泡难度较大。为解决非水相体系发泡困难的问题，文章通过制备纳米SiO2颗粒，经TEM，FT-IR及XRD对颗粒进行表征，采用3-缩水甘油氧基丙基三甲氧基硅烷（GPTMS）对纳米SiO2颗粒润湿性进行调控，研究纳米SiO2颗粒对非水相溶剂发泡性能的影响。结果表明：经GPTMS改性后，颗粒的接触角范围扩大至34.7°~116°之间；且能有效降低不同溶剂的表面张力并增加溶剂体系的黏度；当颗粒质量分数为7%，粒径为10 nm时，非水相产生的泡沫体积随纳米SiO2颗粒接触角的增大呈现先增后减的趋势，泡沫稳定性随纳米SiO2颗粒接触角的增大呈现先增强后减弱的趋势。在甲酰胺体系中，当颗粒接触角为92.3°时，泡沫体积最高可达到12 mL，泡沫稳定时长可达63 d；在乙酸苄酯体系中，当颗粒接触角为79.5°时，泡沫体积最高可达到7 mL，泡沫稳定时长可达47 d；在癸烷体系中，当颗粒接触角为60.3°时，泡沫体积最高可达到4 mL，泡沫稳定时长可达8 d。

关键词: 非水相泡沫, 纳米SiO2颗粒, 润湿性, 发泡性能, 稳定性

Abstract:

Non-aqueous foams have a wide range of applications in petroleum exploitation, functional materials, daily chemical industry, etc. However, the low interfacial tension and low dielectric constant of non-aqueous solvents lead to the difficulty in forming stable foams. Therefore, to solve the difficulty in foaming for non-aqueous systems, nano-SiO2 particles were prepared and characterized by TEM, FT-IR and XRD. Then the wettability of nano-SiO2 particles was modified with 3-glycidyloxypropyl trimethoxysilane （GPTMS）, and the effects of nano-SiO2 particles of different wettability on the foaming performance of non-aqueous solvents were studied. The results showed that the contact angle of the particles could be regulated in the range from 34.7° to 116° by GPTMS modification. The surface tension of different solvents could be effectively reduced and the viscosity of the solvent systems was increased. When the mass fraction of particles was 7% and the particle size was 10 nm, the foam volume for non-aqueous solvents first increased and then decreased with the increase of the contact angle of nano-SiO2 particles, and the foam stability also first increased and then decreased with the increase of the contact angle of nano-SiO2 particles. In the formamide system, when the contact angle of particles was 92.3°, the foam volume could reach up to 12 mL, and the foam stability could reach 63 days. In the benzyl acetate system, when the contact angle of particles was 79.5°, the foam volume could reach up to 7 mL, and the foam stability could reach 47 days. In the decane system, when the contact angle of particles was 60.3°, the foam volume could reach up to 4 mL, and the foam stability could reach 8 days.

Key words: non-aqueous foam, nano-SiO2 particle, wettability, foaming performance, stability

中图分类号: 

  • O648.2