以表面活性剂醇醚糖苷(AEG)和纳米膨润土颗粒(NPT-2)为乳化剂,制备了油酸甲酯乳状液,考察了AEG与NPT-2的配比对乳液体系稳定性和乳液粒径的影响,并通过表面张力和zeta电位测量对二者复配稳定乳液的机理进行了讨论.结果表明,单一使用表面活性剂AEG或者纳米膨润土颗粒NPT-2均不能得到稳定的油酸甲酯乳状液,将二者复配则乳液的稳定性有显著提高.固定AEG量逐渐增加NPT-2乳液粒径先增大后又减小,固定NPT-2量逐渐增加AEG,乳液体系粒径逐渐变小；AEG与NPT-2复配前后体系的表面张力曲线“滞后”现象及zeta电位的升高表明,AEG分子在纳米颗粒NPT-2上发生了吸附,协同稳定乳状液.
参考文献
| [1] | SHEN Zhong.Colloid and Surface Chemistry[M].Beijing:China Light Industry Press,2000:478-499(in Chinese).沈钟.胶体与表面化学[M].北京:中国轻工业出版社,2000:478-499. |
| [2] | ZHAO Guoxi,ZHU Buyao.Principles of Surfactant Action[M].Beijing:China Light Industry Press,2003:562-587 (in Chinese).赵国玺,朱步瑶.表面活性剂作用原理[M].北京:中国轻工业出版社,2003:562-587. |
| [3] | Binks B P,Lumsdon S O.Influence of Particle Wettability on the Type and Stability of Surfactant-Free Emulsions[J].Langmuir,2000,16:8622-8631. |
| [4] | Ashby N P,Binks B P.Pickering Emulsions Stabilised by Laponite Clay Particles[J].Phys Chem Chem Phys,2000,2:5640-5646. |
| [5] | Binks B P,Clint J H,Whitby C P.Rheological Behavior of Water-in-Oil Emulsions Stabilized by Hydrophobic Bentonite Particles[J].Langmuir,2005,21:5307-5316. |
| [6] | Lan Q,Liu C,Yang F,et al.Synthesis of Bilayer Oleic Acid-coated Fe3O4 Nanoparticles and Their Application in pHresponsive Picketing Emulsions[J].J Colloid Interface Sci,2007,310:260-269. |
| [7] | Lagaly G,Reese M,Abend S.Smectites as Colloidal Stabilizers of Emulsions:Ⅱ.Rheological Properties of Smectite-laden Emulsions[J].Appl Clay Sci,1999,14:83-103. |
| [8] | Tambe D E,Sharma M M. Factors Controlling the Stability of Colloid-Stabilized Emulsions:Ⅲ.Measurement of the Rheological Properties of Colloid-Laden Interfaces[J].J Colloid Interface Sci,1995,171:456-462. |
| [9] | Binks B P,Rodrigues J A,Frith W J. Enhanced Stabilization of Emulsions due to Surfactant-induced Nanoparticle Flocculation[J].Langmuir,2007,23:3626-3636. |
| [10] | Gosa K L,Uricanu V.Emulsions Stabilized with PEO-PPO-PEO Block Copolymers and Silica[J].Colloids Surf A,2002,197:257-269. |
| [11] | Binks B P,Lumsdon S O.Stability of Oil-in-Water Emulsions in a Low Interfacial Tension System[J].Langmuir,2000,16:2539-2547. |
| [12] | Binks B P,Lumsdon S O.Transitional Phase Inversion of Solid-Stabilized Emulsions Using Particle Mixtures[J].Langmuir,2000,16:3748-3756. |
| [13] | Wang J,Yang F,Li C,et al.Double Phase Inversion of Emulsions Containing Layered Double Hydroxide Particles Induced by Adsorption of Sodium Dodecyl Sulfate[J].Langmuir,2008,24:10054-10061. |
| [14] | YANG Xiuquan,ZUO Anbao,WANG Hu,et al.Surface Active Agent Alkylethoxyglucoside and Its Preparation Method:CN,1651129[P].2005-8-10(in Chinese).杨秀全,左安宝,王虎,等.表面活性剂醇醚糖苷及其制备方法:中国,1651129[P].2005-08-10. |
| [15] | ZUO Anbao,YANG Xiuquan,CHENG Yumei,et al.Preparation and Properties of Glucoside Product of Fatty Alcohol Ethoxylates[J].J China Surfactant Deterg Cosmet,2006,369(1):59-61 (in Chinese).左安宝,杨秀全,程玉梅,等.醇醚多糖苷产品的制备及性能测试[J].日用化学工业,2006,36(1):59-61. |
| [16] | Binks B P,Desforges A,Duff D G.Synergistic Stabilization of Emulsions by a Mixture of Surface-active Nanoparticles and Surfactant[J].Langmuir,2007,23:1098-1106. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%