Fabrication and factors of stabilization of pickering emulsion based on TiO2-SA-Arg nanoparticles

Lei Li, Qiaoling Zhang*, Youzhi Liu, Bing Wei, Jiaxin Guo, Yujie Feng

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

3 引用 (Scopus)

摘要

Salicylate (SA) and arginine (Arg) were modified on the surface of nano TiO2 by impregnation method, FT-IR, XRD, BET, TEM, dynamic light scattering(DLS), TG and contact angle measurement were employed to characterized the structures and properties of the modified particles. The results show that the modified particles are sheet mesoporous nanoparticles with mixed crystal structure. The particles have weakening hydrophilic surface and less reunion in water compared with the unmodified particles. The effect of emulsification time, the pH value and the electrolyte concentration of the aqueous phase, the amount of solid particles, the oil phase volume fraction and standing temperature on structure and stability of nitrobenzene/water emulsion of Pickering emulsion was studied. The results show that, the emulsion has the best stand stability when the pH value of aqueous phase is 3~5 or the electrolyte concentration is 0.05~0.2 mol/L; the creaming index of emulsion is increased with the solid particle concentration increasing; the phase inversion occurs when the oil phase volume fraction is 40%. The critical micelle concentration of solid particles (CMC) value was determined and the result shows that modified particles have similar amphiphilic properties of polymer.

源语言英语
页(从-至)162-170
页数9
期刊Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering
32
8
DOI
出版状态已出版 - 1 8月 2016
已对外发布

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Li, L., Zhang, Q., Liu, Y., Wei, B., Guo, J., & Feng, Y. (2016). Fabrication and factors of stabilization of pickering emulsion based on TiO2-SA-Arg nanoparticles. Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering, 32(8), 162-170. https://doi.org/10.16865/j.cnki.1000-7555.2016.08.030