Datum
2023-11-14Schlagwort
600 Technik 660 Chemische Verfahrenstechnik, Technische Chemie SpritzgießenFlüssigkautschukSiliconkautschukSchaumstoffWasserMetadata
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Aufsatz![](/themes/Mirage2/images/Open_Access_logo_PLoS_transparent.svg)
Bundesministerium für Wirtschaft und Energie. Grant Number: 03THW10K14
Improvement of the Cell Structure of Water-Foamed Liquid Silicone Rubber
Zusammenfassung
This article shows three different water-based physical blowing agents for liquid silicone rubber (LSR) in terms of physical, mechanical, and morphological properties depending on the manufacturing parameters and amounts of blowing agents. The compositions consist of common LSRs added with pure water, water–silicone oil emulsion, and aqueous silicone. The foaming process is initiated in an injection molding process. By subvolumetrically filling the mold, it is possible to foam the LSR during the injection molding process. This publication aims to compare different, water-based blowing agents for LSR in the injection molding process. The results show that for all foams porosities between 0.25 and 0.4 are possible. An analysis of the foam structure shows that the aqueous silicone produces a significantly more homogeneous structure than the other two blowing agents. In addition, the mechanical properties are analyzed. For this purpose, tensile tests are carried out and the Shore hardness is determined. The elasticity and mechanical properties decrease slightly. The specific tensile strength also shows a small decrease, although this may be due to either the gradient of the foam structure or chemical reactions between the blowing agents and the LSR.
Zitierform
In: Advanced Engineering Materials Volume 26 / Issue 15 (2023-11-14) eissn:1527-2648Förderhinweis
Gefördert im Rahmen des Projekts DEALBundesministerium für Wirtschaft und Energie. Grant Number: 03THW10K14
Zitieren
@article{doi:10.17170/kobra-2024082310701,
author={Marl, Svenja and Hartung, Michael and Klier, Kevin and Rüppel, Annette and Giesen, Ralf-Urs and Heim, Hans-Peter},
title={Improvement of the Cell Structure of Water-Foamed Liquid Silicone Rubber},
journal={Advanced Engineering Materials},
year={2023}
}
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2024-08-26T15:15:41Z 2024-08-26T15:15:41Z 2023-11-14 doi:10.17170/kobra-2024082310701 http://hdl.handle.net/123456789/15984 Gefördert im Rahmen des Projekts DEAL Bundesministerium für Wirtschaft und Energie. Grant Number: 03THW10K14 eng Namensnennung 4.0 International http://creativecommons.org/licenses/by/4.0/ injection molding liquid silicone rubbers silicone rubber foams water 600 660 Improvement of the Cell Structure of Water-Foamed Liquid Silicone Rubber Aufsatz This article shows three different water-based physical blowing agents for liquid silicone rubber (LSR) in terms of physical, mechanical, and morphological properties depending on the manufacturing parameters and amounts of blowing agents. The compositions consist of common LSRs added with pure water, water–silicone oil emulsion, and aqueous silicone. The foaming process is initiated in an injection molding process. By subvolumetrically filling the mold, it is possible to foam the LSR during the injection molding process. This publication aims to compare different, water-based blowing agents for LSR in the injection molding process. The results show that for all foams porosities between 0.25 and 0.4 are possible. An analysis of the foam structure shows that the aqueous silicone produces a significantly more homogeneous structure than the other two blowing agents. In addition, the mechanical properties are analyzed. For this purpose, tensile tests are carried out and the Shore hardness is determined. The elasticity and mechanical properties decrease slightly. The specific tensile strength also shows a small decrease, although this may be due to either the gradient of the foam structure or chemical reactions between the blowing agents and the LSR. open access Marl, Svenja Hartung, Michael Klier, Kevin Rüppel, Annette Giesen, Ralf-Urs Heim, Hans-Peter doi:10.1002/adem.202201898 Grant Number: 03THW10K14 Spritzgießen Flüssigkautschuk Siliconkautschuk Schaumstoff Wasser publishedVersion eissn:1527-2648 Issue 15 Advanced Engineering Materials Volume 26 false 2201898
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