Pigments and Their Application as Pickering Emulsion StabilizersJournal: Journal of Chemical Reviews (Vol.4, No. 3)
Publication Date: 2022-06-21
Authors : Samuel Olalekan Olusanya;
Page : 200-221
Keywords : colour; pigment; Optical properties; Particles;
Pigments are chemical compounds in the particulate form with colour imparting ability. The colour of pigments depends on their chemical structure. They are widely used as colourants by many industries in their formulation however it is sometimes not clear if the pigment particles reside at the interface or not. Coloured emulsions and foams are an essential class of dispersed systems where significant development is still needed, specifically in terms of different strategies to impart colour itself. Investigating the behaviour of pigment particles at fluid−fluid interfaces will help understand the microstructure of pigment-containing products. This is particularly important in an industrial context meaning that formulations containing pigments and interfaces may be simplified and possibly the colour of different products can easily be tuned to suit customer choice. In this review article, a brief account of pigment chemistry is provided, and a short literature review on pickering emulsions stabilized by pigment particles is given.
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