High internal phase Pickering emulsions |
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| Institution: | 1. Department of Chemical Engineering, McMaster University, Hamilton L8S 4L7, Canada;2. College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China;3. Key Laboratory of Carbon Fiber and Functional Polymers (Ministry of Education), Beijing University of Chemical Technology, Beijing 100029, China;1. Department of Food Science and Technology, South China University of Technology, Guangzhou 510640, PR China;2. Department of Food Science and Engineering, Jinan University, Guangzhou 510632, PR China;3. State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, PR China |
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| Abstract: | Macroemulsions rendered stable by adsorbed colloidal particles are termed Pickering emulsions. If the volume fraction of dispersed phase exceeds around 0.75, the emulsions are named high internal phase Pickering emulsions abbreviated to HIPPEs, which present new properties and potential applications. We review here the recent progress in preparing and studying HIPPEs of both oil-in-water and water-in-oil types. This includes discussion of the range of solid particle emulsifiers, the choice of the two immiscible liquids and methods for their preparation. As a result of their high interfacial area and long-term stability, HIPPEs are being put to use in many potential applications including drug delivery, catalysis, and in the production of novel porous materials. |
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| Keywords: | Pickering emulsions Applications Colloidal particles Emulsion gels |
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