油醇聚氧乙烯醚类化合物在D相乳化技术中的研究
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摘要
以甘油(通用保湿剂)水溶液为水相,太阳花油为油相,油醇聚醚-10、20、30为乳化剂进行D相乳化探究,并绘制出相应相图。结果表明油醇聚醚-10在该条件下并不能实现D相乳化,而油醇聚醚-20与油醇聚醚-30在一定范围内可以顺利实现D相乳化;该组合对常见天然植物油脂也能得到相同结果。通过与普通乳化方法进行对比实验,发现以太阳花油作为油相,甘油水溶液作为水相,油醇聚醚-30作为乳化剂,通过D相乳化技术可以制备乳液粒径分布均匀且微细的乳液(d=1～4μm),而且能量需求更小。进一步的实验发现,多元醇对D相乳化过程中乳化剂的亲水亲油平衡性起着两向调节作用,这与其对相应非离子乳化剂的浊点升高或降低作用密切相关。
D-phase emulsification was studied with glycerin(universal humectant)-water solution as the aqueous phase, sunflower seed oil as the oil phase and Oleth-10, 20 and 30 as the emulsifiers, and the corresponding phase diagrams were drawn. The results showed that the D-phase emulsification of Oleth-10 could not be realized under the condition, while the D phase emulsification of Oleth-20 and Oleth-30 could be achieved within a certain range.The same results were also obtained for common natural vegetable oils. Compared with the ordinary emulsification method, it was found that the micro-emulsion with sunflower oil as the oil phase, glycerol-water solution as the water phase, Oleth-30 as the emulsifier, can be prepared via the D-phase emulsification technology,the emulsion particle size distribution was more uniform and fine(d=1～4 μm), and the energy demand was smaller. Further experiments showed that polyols play a bidirectional role in regulating the hydrophilic and lipophilic balance of emulsifiers during the D-phase emulsification process, which was closely related to the effects of polylols on increasing or decreasing the cloud points of the corresponding non-ionic emulsifiers.
D-phase emulsification was studied with glycerin(universal humectant)-water solution as the aqueous phase, sunflower seed oil as the oil phase and Oleth-10, 20 and 30 as the emulsifiers, and the corresponding phase diagrams were drawn. The results showed that the D-phase emulsification of Oleth-10 could not be realized under the condition, while the D phase emulsification of Oleth-20 and Oleth-30 could be achieved within a certain range.The same results were also obtained for common natural vegetable oils. Compared with the ordinary emulsification method, it was found that the micro-emulsion with sunflower oil as the oil phase, glycerol-water solution as the water phase, Oleth-30 as the emulsifier, can be prepared via the D-phase emulsification technology,the emulsion particle size distribution was more uniform and fine(d=1～4 μm), and the energy demand was smaller. Further experiments showed that polyols play a bidirectional role in regulating the hydrophilic and lipophilic balance of emulsifiers during the D-phase emulsification process, which was closely related to the effects of polylols on increasing or decreasing the cloud points of the corresponding non-ionic emulsifiers.
引文
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[2]Kabalnov A S,Shchukin E D.Ostwald ripening theory:Applications to fluorocarbon emulsion stability[J].Advances in Colloid&Interface Science,1992,38(92):69-97.
[3]Hiromichi Sagitani,Friberg S.Microemulsion systems with a nonionic cosufactant[J].Journal of Dispersion Science&Technology,1980,1(2):14.
[4]Sagitani H.Making homogeneous and fine droplet O/W emulsions using nonionic surfactants[J].Journal of the American Oil Chemists’Society,1981,58(6):738-743.
[5]Bellocq A M,Biais J,Bothorel P,et al.Microemulsions[J].Advances in Colloid&Interface Science,1984,20(3):167-272.
[6]Bourrel M,Schechter R S.Microemulsions and related systems[M].1988.
[7]Liaw J W,Tsai S W,Lin H H,et al.Wavelength-dependent Faraday-Tyndall effect on laser-induced microbubble in gold colloid[J].Journal of Quantitative Spectroscopy and Radiative Transfer,2012,113(17):2234-2242.
[8]Gooch J W.Encyclopedic dictionary of polymers[M].2014.