التفاصيل البيبلوغرافية
| العنوان: |
CaCO3纳米晶体稳定非水相泡沫实验研究. (Chinese) |
| Alternate Title: |
Experimental study on non-aqueous foams stabilized by CaCO3 nanocrystals. (English) |
| المؤلفون: |
张佩亮, 燕永利, 吕 博, 曹玉霞, 吴春生, 贺炳成 |
| المصدر: |
China Surfactant Detergent & Cosmetics (2097-2806); Jun2023, Vol. 53 Issue 6, p642-648, 7p |
| مصطلحات موضوعية: |
NONAQUEOUS solvents, INTERFACIAL tension, CONTACT angle, PERMITTIVITY, X-ray diffraction, FOAM |
| Abstract (English): |
Non-aqueous foams are widely used in fields such as oilfield development, functional materials, food industry and daily chemicals. The regulation of the properties of non-aqueous foams plays an important role in the development of related industries. Due to the low interfacial tension and low dielectric constant of non-aqueous solvents, foaming is difficult. Therefore, in this work, to solve the problems in non-aqueous solvent foaming, CaCO3 nanocrystals were prepared. The crystal particles were characterized by TEM, FT-IR and XRD. 1H, 1H, 2H, 2H-perfluorodecyl triethoxy silane was used to regulate the wettability of CaCO3 nanocrystals. The effects of CaCO3 nanocrystals on the foaming performance of non-aqueous solvents were studied. It was found that, with the increase of mass fraction of CaCO3 nanocrystals, the foam volume produced by CaCO3 nanocrystals with different contact angles first increased and then decreased. When the crystal mass fraction was 5%, the foaming performance of non-aqueous solvent was the best, and the foam volume could reach 120 mL. The stability of the non-aqueous foam first increased and then decreased with the increase of the contact angle of CaCO3 nanocrystals. When the contact angle was in the range from 47.5° to 73.9°, the stability of the non-aqueous foam was the best, and the draining half-life was up to 100 h. [ABSTRACT FROM AUTHOR] |
| Abstract (Chinese): |
非水相泡沫在油田开发、功能材料、食品工业和日化等领域有着广泛的应用, 对非水相泡沫性能的调控在相关行业的 发展中发挥着重要的影响。然而, 由于非水相溶剂具有的低界面张力和低介电常数, 导致其发泡难度较大。为解决非水相 溶剂发泡困难的问题, 文章通过制备CaCO3纳米晶体, 并经TEM, FT-IR及XRD等对晶体颗粒进行了表征, 采用1H, 1H, 2H, 2H-全氟癸基三乙氧基硅烷对CaCO3纳米晶体的润湿性进行了调控, 研究CaCO3纳米晶体对非水相溶剂发泡性能的影响。研 究发现：随CaCO3纳米晶体质量分数的增加, 不同接触角的CaCO3纳米晶体所产生的泡沫体积呈现先增后减的趋势, 当晶体 质量分数为5%时, 非水相溶剂发泡性能最佳, 泡沫体积最高可达到120 mL;非水相泡沫的稳定性随CaCO3纳米晶体接触角 的增加呈现先增强后减弱的趋势, 当接触角范围在47.5°~73.9°时, 非水相泡沫的稳定性最佳, 排液半衰期最高可达到100 h。. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
