Date
2022-03-03Subject
600 Technology 660 Chemical engineering HinterspritzenEigenverstärkungVerbundwerkstoffPolypropylenMechanische EigenschaftMetadata
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Influences on the mechanical properties of SRCs in a combined compacting and back injecting process
Abstract
In this research paper, the effects of the combined compacting and back-injection process to produce back-injected self-reinforced composites on the mechanical properties of the self-reinforced composites (SRCs) are investigated. For this purpose, the parameters barrel temperature, time of injection and holding pressure were varied for the back injection. Tensile and bending tests were carried out on the SRCs. The results show that the mechanical properties depend to a large extent on the process parameters. The measured tensile strength varies between approx. 186 and 86 MPa, the stiffness between approx. 3500 and 2000 MPa. The flexural strength is measured between approx. 75 and 5 MPa, the flexural modulus between approx. 5480 and 650 MPa. Flexural tests are more suitable for evaluation of the consolidation, as tensile tests cannot evaluate the adhesion of the fabric layers to each other in the SRCs. Microscopic examinations show that consolidation by the back-injected melt can lead to smaller cross-sections in the SRCs compared to an area that was not back-injected. At high barrel temperatures, melting of individual fabric layers can occur, which explains, among other things, the drop in the mechanical properties of the SRCs.
Citation
In: International Polymer Processing Band 37 / Heft 2 (2022-03-03) , S. 141-151 ; eissn:2195-8602Additional Information
Originally published at https://doi.org/10.1515/ipp-2021-4151Citation
@article{doi:10.17170/kobra-202402239651,
author={Jakob, Fabian Simon and Pollmeier, Joshua and Heim, Hans-Peter},
title={Influences on the mechanical properties of SRCs in a combined compacting and back injecting process},
journal={International Polymer Processing},
year={2022}
}
0500 Oax 0501 Text $btxt$2rdacontent 0502 Computermedien $bc$2rdacarrier 1100 2022$n2022 1500 1/eng 2050 ##0##http://hdl.handle.net/123456789/15635 3000 Jakob, Fabian Simon 3010 Pollmeier, Joshua 3010 Heim, Hans-Peter 4000 Influences on the mechanical properties of SRCs in a combined compacting and back injecting process / Jakob, Fabian Simon 4030 4060 Online-Ressource 4085 ##0##=u http://nbn-resolving.de/http://hdl.handle.net/123456789/15635=x R 4204 \$dAufsatz 4170 5550 {{Hinterspritzen}} 5550 {{Eigenverstärkung}} 5550 {{Verbundwerkstoff}} 5550 {{Polypropylen}} 5550 {{Mechanische Eigenschaft}} 7136 ##0##http://hdl.handle.net/123456789/15635
2024-04-08T15:09:03Z 2024-04-08T15:09:03Z 2022-03-03 doi:10.17170/kobra-202402239651 http://hdl.handle.net/123456789/15635 Originally published at https://doi.org/10.1515/ipp-2021-4151 eng Urheberrechtlich geschützt https://rightsstatements.org/page/InC/1.0/ back-injection hot compaction self-reinforced SRC SR-PP 600 660 Influences on the mechanical properties of SRCs in a combined compacting and back injecting process Aufsatz In this research paper, the effects of the combined compacting and back-injection process to produce back-injected self-reinforced composites on the mechanical properties of the self-reinforced composites (SRCs) are investigated. For this purpose, the parameters barrel temperature, time of injection and holding pressure were varied for the back injection. Tensile and bending tests were carried out on the SRCs. The results show that the mechanical properties depend to a large extent on the process parameters. The measured tensile strength varies between approx. 186 and 86 MPa, the stiffness between approx. 3500 and 2000 MPa. The flexural strength is measured between approx. 75 and 5 MPa, the flexural modulus between approx. 5480 and 650 MPa. Flexural tests are more suitable for evaluation of the consolidation, as tensile tests cannot evaluate the adhesion of the fabric layers to each other in the SRCs. Microscopic examinations show that consolidation by the back-injected melt can lead to smaller cross-sections in the SRCs compared to an area that was not back-injected. At high barrel temperatures, melting of individual fabric layers can occur, which explains, among other things, the drop in the mechanical properties of the SRCs. open access Jakob, Fabian Simon Pollmeier, Joshua Heim, Hans-Peter doi:10.1515/ipp-2021-4151 Hinterspritzen Eigenverstärkung Verbundwerkstoff Polypropylen Mechanische Eigenschaft publishedVersion eissn:2195-8602 Heft 2 International Polymer Processing 141-151 Band 37 false
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Urheberrechtlich geschützt