Micro-fabricated metal nozzle plates used for water-in-oil and oil-in-water emulsification

Geerken, Maik J. and Groenendijk, Max N.W. and Lammertink, Rob G.H. and Wessling, Matthias (2008) Micro-fabricated metal nozzle plates used for water-in-oil and oil-in-water emulsification. Journal of Membrane Science, 310 (1-2). pp. 374-383. ISSN 0376-7388

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Abstract:	In this paper the fabrication and use of micro-structured metal nozzle plates as emulsification devices is investigated and discussed. These structured metal nozzle plates were fabricated via two distinct routes. Laser ablation, performed with a femtosecond laser, was used to drill micrometer-sized holes into stainless steel and aluminum foils. Also a conventional steel mesh with an average pore size of 2.4 μm fabricated by weaving and roll compaction of micrometer-sized steel wires was investigated. The perforated metal nozzle plates were used for oil-in-water and after hydrophobization with alkylchlorosilanes for water-in-oil emulsification as well. In both cases, two types of drop formation processes were observed. The first one is the shear-induced drop formation well known for cross-flow membrane emulsification. The second is the spontaneous drop formation known from microchannel emulsification.
Item Type:	Article
Copyright:	Elsevier
Faculty:	Science and Technology (TNW)
Research Group:	Membrane Science and Technology (MST)
Link to this item:	http://purl.utwente.nl/publications/71600
Official URL:	http://dx.doi.org/10.1016/j.memsci.2007.11.008
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