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Method for spraying of free standing 3D structures with MFC: Creation and development of a method
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Chemical Sciences.
2016 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Metod för sprayning av fristående 3D-strukturer med MFC : Framtagning och utveckling av en metod (Swedish)
Abstract [en]

The main scope of this work was to investigate whether it is possible to produce free standing 3D structures by the means of spraying and using MFC as raw material. This was carried out by diluting MFC into a consistency of 2% and spraying it onto a male mould. During the trials, several different devices and procedures were investigated in order to find a possible solution. The results from the laboratory trials showed that it is possible to create trays of MFC that could suitable as a detail for packaging. The important thing was to pre-heat the mould before spraying, build the tray in layers, where spraying should be carried out in a 45° angle, with single sweeps while rotating the mould in the beginning of the process, and to use a drying method, were the drying could be focused on the wet parts at the same time as it could avoid those who already had been dried, to dry the sample between each layer of MFC until the wet surface disappeared. Exactly how many sweeps per layer that should be sprayed after the first drying does not matter much, the important thing was that the layers do not become too thick. Because then, too much moisture was trapped inside the samples which made them burst during the drying.

Place, publisher, year, edition, pages
2016. , 42 p.
Keyword [en]
MFC, spraying, 3D structures
National Category
Chemical Engineering
URN: urn:nbn:se:kau:diva-43551OAI: diva2:941947
External cooperation
Stora Enso RCK
Subject / course
Chemical Engineering
Educational program
Engineering: Chemical Engineering (300 ECTS credits)
Available from: 2016-06-27 Created: 2016-06-23 Last updated: 2016-06-27Bibliographically approved

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