Assembling kaolinite nanotube at water/oil interface for enhancing Pickering emulsion stability
Source abstract
Abstract
Abstract Emulsion has a wide range of applications. Good Pickering emulsifiers have always been sought to use for high stable emulsion. In this work, nanometer-sized kaolinite nanotube was prepared and used as emulsifier to stabilize Pickering emulsion. The emulsion stability was investigated by measuring the emulsion volume, emulsion viscosity, optical microanalysis of the emulsion droplets, and Cryoelectron microscopy of the distributed structure of emulsifier at the water/oil interface. The results showed that the emulsion droplet diameter was 60 μm, and the emulsion viscosity reached up to 3470 mPa·S. The creaming index was 76% and even up to 36% after centrifugation at 2000 rpm. The enhanced emulsion stability was ascribed to assembly and alignment of the kaolinite nanotube at the water/oil interface, forming a denser single-layer particle film to prevent the coalescence of emulsion droplets.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Pickering emulsions and particle stabilization · Proteins in Food Systems · Surfactants and Colloidal Systems
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (25)
Show source-provided references
1. Bentonite and double hydroxides as emulsifying agents10.1180/0009855013640009 ↗
2. Particles as surfactants-similarities and differences10.1016/S1359-0294(02)00008-0 ↗
3. A new method for determining platy particle aspect ratio: a kaolinite case study10.1016/j.clay.2014.05.018 ↗
4. Emulsions stabilized with solid nanoparticles: Pickering emulsions10.1016/j.colsurfa.2013.02.054 ↗
5. Effects of surfactant structure on the phase inversion of emulsions stabilized by mixtures of silica nanoparticles and cationic surfactant10.1021/la903589e ↗
6. Modification of kaolinite by grafting of siderophilic ligands to the external octahedral surface10.1016/j.clay.2013.12.020 ↗
7. Large-scale, low-cost fabrication of Janus-type emulsifiers by selective decoration of natural kaolinite platelets10.1002/anie.201106710 ↗
8. Colloid surfactants for emulsion stabilization10.1002/adma.200800484 ↗
9. Oil-in-water Pickering emulsions stabilized by phyllosilicates at high solid content10.1016/j.colsurfa.2014.09.037 ↗
10. Mechanism of kaolinite sheets curling via the intercalation and delamination process10.1016/j.jcis.2014.12.039 ↗
11. Methoxy-grafted kaolinite preparation by intercalation of methanol: Mechanism of its structural variability10.1016/j.clay.2016.12.031 ↗
12. High-yield production of mesoporous nanoscrolls from kaolinite by ultrasonic assisted exfoliation10.1016/j.micromeso.2016.12.006 ↗
13. A comparative study of synthetic tubular kaolinite nanoscrolls and natural halloysite nanotubes10.1016/j.clay.2018.12.014 ↗
14. Selective modification of kaolinite with vinyltrimethoxysilane for stabilization of Pickering emulsions10.1016/j.clay.2018.04.038 ↗
15. Insight into the self-adaptive deformation of kaolinite layers into nanoscrolls10.1016/j.clay.2016.02.015 ↗
16. Halloysite clay nanotubes for loading and sustained release of functional compounds10.1002/adma.201502341 ↗
17. Liquid exfoliation of layered materials10.1126/science.1226419 ↗
18. Release of surfactant cargo from interfacially-active halloysite clay nanotubes for oil spill remediation10.1021/la503687b ↗
19. Interfacial adsorption and surfactant release characteristics of magnetically functionalized halloysite nanotubes for responsive emulsions10.1016/j.jcis.2015.10.064 ↗
20. The effect of colloidal particles on fluid-fluid interfacial properties and emulsion stability10.1016/0001-8686(94)80039-1 ↗
21. Selective loading of 5-fluorouracil in the interlayer space of methoxy-modified kaolinite for controlled release10.1016/j.clay.2017.04.008 ↗
22. Recent studies of pickering emulsions: particles make the difference10.1002/smll.201600877 ↗
23. Chemically modified kaolinite nanolayers for the removal of organic pollutants10.1016/j.clay.2018.03.009 ↗
24. Recent advances in clay mineral-containing nanocomposite hydrogels10.1039/C5SM01277E ↗
25. Current fundamental and applied research into clay minerals in China10.1016/j.clay.2015.07.043 ↗