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Volume 16
Issue 23
10.3390/ma16237501
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Article

Structure Analysis and Its Correlation with Mechanical Properties of Microcellular Polyamide Composites Reinforced with Glass Fibers

by
Piotr Szewczykowski
1,*,
Dariusz Sykutera
1,
Piotr Czyżewski
1,
Mieczysław Cieszko
2,
Zbigniew Szczepański
2 and
Bartosz Nowinka
1
1
Department of Manufacturing Techniques, Faculty of Mechanical Engineering, Bydgoszcz University of Science and Technology, Kaliskiego 7, 85-796 Bydgoszcz, Poland
2
Department of Mechanics of Porous Media, Faculty of Mechatronics, Kazimierz Wielki University, Chodkiewicza 30, 85-064 Bydgoszcz, Poland
*
Author to whom correspondence should be addressed.
Materials 2023, 16(23), 7501; https://doi.org/10.3390/ma16237501
Submission received: 31 October 2023 / Revised: 27 November 2023 / Accepted: 29 November 2023 / Published: 4 December 2023
(This article belongs to the Special Issue Non-Destructive Testing (NDT) of Advanced Composites and Structures)
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Abstract

Thin-walled and thick-walled microcellular moldings were obtained by MuCell® technology with nitrogen as a supercritical fluid. 2 mm thick polyamide 6 (PA6) with 30% wt. glass fiber (GF) samples were cut from automotive industrial elements, while 4 mm, 6 mm, and 8.4 mm thick moldings of PA6.6 with 30% wt. GF were molded into a dumbbell shape. The internal structure was investigated by scanning electron microscopy (SEM) and X-ray computed microtomography (micro-CT) and compared by numerical simulations for microcellular moldings using Moldex3D® 2022 software. Young’s modulus, and tensile and impact strength were investigated. Weak mechanical properties of 2 mm thick samples and excellent results for thick-walled moldings were explained. SEM pictures, micro-CT, and simulation graphs revealed the tendency to decrease the cell size diameter together with increasing sample thickness from 2 mm up to 8.4 mm.
Keywords: polymer–matrix composites; mechanical properties; porous materials; X-ray computed microtomography; numerical simulations polymer–matrix composites; mechanical properties; porous materials; X-ray computed microtomography; numerical simulations
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MDPI and ACS Style

Szewczykowski, P.; Sykutera, D.; Czyżewski, P.; Cieszko, M.; Szczepański, Z.; Nowinka, B. Structure Analysis and Its Correlation with Mechanical Properties of Microcellular Polyamide Composites Reinforced with Glass Fibers. Materials 2023, 16, 7501. https://doi.org/10.3390/ma16237501

AMA Style

Szewczykowski P, Sykutera D, Czyżewski P, Cieszko M, Szczepański Z, Nowinka B. Structure Analysis and Its Correlation with Mechanical Properties of Microcellular Polyamide Composites Reinforced with Glass Fibers. Materials. 2023; 16(23):7501. https://doi.org/10.3390/ma16237501

Chicago/Turabian Style

Szewczykowski, Piotr, Dariusz Sykutera, Piotr Czyżewski, Mieczysław Cieszko, Zbigniew Szczepański, and Bartosz Nowinka. 2023. "Structure Analysis and Its Correlation with Mechanical Properties of Microcellular Polyamide Composites Reinforced with Glass Fibers" Materials 16, no. 23: 7501. https://doi.org/10.3390/ma16237501

APA Style

Szewczykowski, P., Sykutera, D., Czyżewski, P., Cieszko, M., Szczepański, Z., & Nowinka, B. (2023). Structure Analysis and Its Correlation with Mechanical Properties of Microcellular Polyamide Composites Reinforced with Glass Fibers. Materials, 16(23), 7501. https://doi.org/10.3390/ma16237501

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