Design and Experiment of T-Shape Glass Micro-Nozzle for Preparation of Microcapsules

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Abstract:

In order to study the fabrication of T-shape combined micronozzle used for preparation of microcapsules, a gravity based apparatus for glass micronozzle was designed. A novel method for glass micro hole was proposed. The impact law of pull force, coil temperature, delay time, coil width on pull process, heating time, feed distance on forge process, and heating area on micro hole fabrication process were experimentally researched. Sealed by UV optical glue, a kind of T-shape combined glass micronozzle was prepared. Orderly core oil emulsion in sodium alginate solution and core oil, poly microsphere (PS) and glass microsphere microcapsules were prepared based on combined pulse dispensing with the T-shape micro-nozzle. Results showed that the T-shape combined glass micronozzle had the advantage of simple structure, low cost, good bio-chemical and optical character and the T-shape micronozzle could be used to produce multiphase liquid flowing and dispensing. It is promising to be applied wildly in other areas.

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Advanced Materials Research (Volumes 887-888)

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101-107

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February 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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