Date
2021Subject
660 Chemical engineering SpritzgießenSchaumkunststoffMikrostrukturMechanische EigenschaftTreibmittelPolycarbonateMetadata
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Konferenzveröffentlichung
The Effect of Injection Molding Parameters on Microcellular Foam Morphology
Abstract
Microcellular foam injection molding with physical blowing agent (MuCell®) delivers monetary benefits, processing advantages and freedom of product design by reducing shrinkage. In conjunction with an advanced mold technology, so-called Pull and Foam method, there is great potential in controlling the foam structure of the component locally. In this study, Polycarbonate (PC) components were produced with nearly compact outer skin and a closed cellular core. To understand the relation between processing parameters and the consequential properties, blowing agent concentration, injection velocity, and mold temperature were varied. Cell size, thickness of the skin layer, distance between cells and the density of the component were correlated to the processing parameters. Reflected light-microscopy (RLM) was used for 2D structure characterization. X-ray micro-computer tomography (μCT) was utilized to gain an insight on the sphericity of cells. Therefore, merged and elongated cells were also taken into account to create microcellular foamed parts with exactly defined properties.
Citation
In: SPE (Hrsg.): SPE Foams® 2021, September 13-16, 2021. Virtual Conference. Conference Proceedings. : 2021, S. ;Citation
@inproceedings{doi:10.17170/kobra-202206216374,
author={Heim, Hans-Peter and Güzel, Kübra},
title={The Effect of Injection Molding Parameters on Microcellular Foam Morphology},
booktitle={SPE Foams® 2021, September 13-16, 2021. Virtual Conference. Conference Proceedings},
year={2021}
}
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2022-06-23T11:05:42Z 2022-06-23T11:05:42Z 2021 doi:10.17170/kobra-202206216374 http://hdl.handle.net/123456789/13952 eng Namensnennung 4.0 International http://creativecommons.org/licenses/by/4.0/ 660 The Effect of Injection Molding Parameters on Microcellular Foam Morphology Konferenzveröffentlichung Microcellular foam injection molding with physical blowing agent (MuCell®) delivers monetary benefits, processing advantages and freedom of product design by reducing shrinkage. In conjunction with an advanced mold technology, so-called Pull and Foam method, there is great potential in controlling the foam structure of the component locally. In this study, Polycarbonate (PC) components were produced with nearly compact outer skin and a closed cellular core. To understand the relation between processing parameters and the consequential properties, blowing agent concentration, injection velocity, and mold temperature were varied. Cell size, thickness of the skin layer, distance between cells and the density of the component were correlated to the processing parameters. Reflected light-microscopy (RLM) was used for 2D structure characterization. X-ray micro-computer tomography (μCT) was utilized to gain an insight on the sphericity of cells. Therefore, merged and elongated cells were also taken into account to create microcellular foamed parts with exactly defined properties. open access Heim, Hans-Peter Güzel, Kübra Spritzgießen Schaumkunststoff Mikrostruktur Mechanische Eigenschaft Treibmittel Polycarbonate publishedVersion 2021-09-13 SPE Foams® 2021, September 13-16, 2021. Virtual Conference. Conference Proceedings SPE false SPE Foams® 2021
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