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Performance of glas...
Performance of glass fiber reinforced polyamide composites exposed to bioethanol fuel at high temperature
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- Wei, Xin-Feng (author)
- KTH,Polymera material
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- Kallio, Kai J. (author)
- Volvo Car Corp, Polymer Ctr, SE-40531 Gothenburg, Sweden.
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- Olsson, Richard (author)
- KTH,Fiber- och polymerteknologi
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- Hedenqvist, Mikael S. (author)
- KTH,Polymera material
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(creator_code:org_t)
- 2022-08-19
- 2022
- English.
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In: NPJ MATERIALS DEGRADATION. - : Springer Nature. - 2397-2106. ; 6:1
- Related links:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- 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.
Subject headings
- NATURVETENSKAP -- Biologi -- Biokemi och molekylärbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biochemistry and Molecular Biology (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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