Datum
2022-05-19Metadata
Zur Langanzeige
Aufsatz
Effect of Cell Morphology on Flexural Behavior of Injection-Molded Microcellular Polycarbonate
Zusammenfassung
The quantitative study of the structure and properties relationship in cellular materials is mostly limited to cell diameter, cell density, skin layer thickness, and cell size distribution. In addition, the investigation of the morphology is generally carried out in two dimensions. Therefore, the
interrelation between morphological properties and mechanical characteristics of the foam structure has remained in an uncertain state. In this study, during the physical foaming process, a foam morphology is locally created by using a mold equipped with a core-back insert. The variation in morphology is obtained by modifying the mold temperature, injection flow rate, and blowing agent content in the polymer melt. X-ray microtomography (μCT) is used to acquire the 3D visualization of the cells structure. The Cell Distribution Index (CDI) is calculated to represent the polydispersity in cell size distribution. The relationship between the wide range of morphological qualities and relevant flexural properties is made explicit via a statistical model. According to the results, the morphology, particularly cell shape, characterizes the mechanism of the linear elastic deformation of the closed-cell foams. IR-thermography reveals the bending failure of cellular structures in the tensile region despite the differences in cell diameter.
interrelation between morphological properties and mechanical characteristics of the foam structure has remained in an uncertain state. In this study, during the physical foaming process, a foam morphology is locally created by using a mold equipped with a core-back insert. The variation in morphology is obtained by modifying the mold temperature, injection flow rate, and blowing agent content in the polymer melt. X-ray microtomography (μCT) is used to acquire the 3D visualization of the cells structure. The Cell Distribution Index (CDI) is calculated to represent the polydispersity in cell size distribution. The relationship between the wide range of morphological qualities and relevant flexural properties is made explicit via a statistical model. According to the results, the morphology, particularly cell shape, characterizes the mechanism of the linear elastic deformation of the closed-cell foams. IR-thermography reveals the bending failure of cellular structures in the tensile region despite the differences in cell diameter.
Zitierform
In: Materials Volume 15 / Issue 10 (2022-05-19) eissn:1996-1944Zitieren
@article{doi:10.17170/kobra-202306098192,
author={Güzel, Kübra and Zarges, Jan-Christoph and Heim, Hans-Peter},
title={Effect of Cell Morphology on Flexural Behavior of Injection-Molded Microcellular Polycarbonate},
journal={Materials},
year={2022}
}
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2023-06-09T08:26:17Z 2023-06-09T08:26:17Z 2022-05-19 doi:10.17170/kobra-202306098192 http://hdl.handle.net/123456789/14806 eng Namensnennung 4.0 International http://creativecommons.org/licenses/by/4.0/ polycarbonate cell morphology flexural properties subset regression analysis IR-thermography 540 600 670 Effect of Cell Morphology on Flexural Behavior of Injection-Molded Microcellular Polycarbonate Aufsatz The quantitative study of the structure and properties relationship in cellular materials is mostly limited to cell diameter, cell density, skin layer thickness, and cell size distribution. In addition, the investigation of the morphology is generally carried out in two dimensions. Therefore, the interrelation between morphological properties and mechanical characteristics of the foam structure has remained in an uncertain state. In this study, during the physical foaming process, a foam morphology is locally created by using a mold equipped with a core-back insert. The variation in morphology is obtained by modifying the mold temperature, injection flow rate, and blowing agent content in the polymer melt. X-ray microtomography (μCT) is used to acquire the 3D visualization of the cells structure. The Cell Distribution Index (CDI) is calculated to represent the polydispersity in cell size distribution. The relationship between the wide range of morphological qualities and relevant flexural properties is made explicit via a statistical model. According to the results, the morphology, particularly cell shape, characterizes the mechanism of the linear elastic deformation of the closed-cell foams. IR-thermography reveals the bending failure of cellular structures in the tensile region despite the differences in cell diameter. open access Güzel, Kübra Zarges, Jan-Christoph Heim, Hans-Peter doi:10.3390/ma15103634 Faser Cellulose Polypropylen Spritzgießen publishedVersion eissn:1996-1944 Issue 10 Materials Volume 15 false 3634
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