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Performance of glass fiber reinforced polyamide composites exposed to bioethanol fuel at high temperature
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Fibre- and Polymer Technology, Polymeric Materials.ORCID iD: 0000-0001-7165-793x
Volvo Car Corp, Polymer Ctr, SE-40531 Gothenburg, Sweden..
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Fibre- and Polymer Technology.ORCID iD: 0000-0001-5454-3316
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Fibre- and Polymer Technology, Polymeric Materials.ORCID iD: 0000-0002-6071-6241
2022 (English)In: NPJ MATERIALS DEGRADATION, ISSN 2397-2106, Vol. 6, no 1, article id 69Article in journal (Refereed) Published
Abstract [en]

The increasing use of bioethanol fuel, as a promising carbon-neutral alternative to petroleum-based gasoline, has raised concerns on compatibility issues between bioethanol and the polymer components used in the automotive fuel system. Here, the performance of two commercial glass-fiber reinforced polyamide composites (polyamide 12 (PA12) and an aromatic highly-biobased polyamide (polyphthalamide, PPA)) exposed to a mixture of ethanol and gasoline (E25 fuel), was investigated at high temperature (120 degrees C). The polyamide matrices showed a fast and remarkably high fuel uptake. The sorbed fuel had a strong plasticizing effect on both materials, as revealed by the large decrease in the glass transition temperature and a 60% decrease in stiffness and strength. The PPA, however, sustained degradation better than the PA12, which experienced swelling-induced surface cracking and oxidation-induced embrittlement. The results suggest that care should be taken when using polyamide composites in ethanol-based fuel applications at this high temperature level.

Place, publisher, year, edition, pages
Springer Nature , 2022. Vol. 6, no 1, article id 69
National Category
Biochemistry and Molecular Biology
Identifiers
URN: urn:nbn:se:kth:diva-317200DOI: 10.1038/s41529-022-00278-6ISI: 000842474900003Scopus ID: 2-s2.0-85136957748OAI: oai:DiVA.org:kth-317200DiVA, id: diva2:1694927
Note

QC 20220912

Available from: 2022-09-12 Created: 2022-09-12 Last updated: 2022-09-12Bibliographically approved

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Wei, Xin-FengOlsson, RichardHedenqvist, Mikael S.

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CiteExportLink to record
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