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Development of novel high Tg polyimide-based composites: Part II: Mechanical characterisation
Swerea SICOMP AB, Mölndal.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0002-5948-7525
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0002-5210-4341
2018 (English)In: Journal of composite materials, ISSN 0021-9983, E-ISSN 1530-793X, Vol. 52, no 2, p. 261-274Article in journal (Refereed) Published
Abstract [en]

In this study, the mechanical performance assessment of a newly developed carbon fibre-reinforced polyimide composite system T650/NEXIMID® MHT-R is presented. This system was subjected to a series of mechanical tests at ambient and elevated temperature (320℃) to determine basic material properties. Moreover, an additional test was conducted, using a T650/NEXIMID® MHT-R laminate in which the fibre sizing was thermally removed prior to laminate manufacturing, to investigate the effect of fibre treatment on mechanical performance. The experimental results indicated that the T650/NEXIMID® MHT-R composites along with exceptionally high Tg (360–420℃) exhibited competitive mechanical properties to other commercially available polyimide and epoxy-based systems. At elevated temperature, the fibre-dominated properties were not affected whilst the properties defined by matrix and fibre/matrix interface were degraded by approximately 20–30%. Finally, the fibre sizing removal did not affect the tensile and compressive strength, however, the shear strength obtained from short-beam shear test was deteriorated by approximately 15%. to serve as baseline for further studies.

Place, publisher, year, edition, pages
Sage Publications, 2018. Vol. 52, no 2, p. 261-274
National Category
Composite Science and Engineering
Research subject
Polymeric Composite Materials
Identifiers
URN: urn:nbn:se:ltu:diva-63439DOI: 10.1177/0021998317705706ISI: 000419136300010Scopus ID: 2-s2.0-85040032640OAI: oai:DiVA.org:ltu-63439DiVA, id: diva2:1096664
Note

Validerad;2018;Nivå 2;2018-01-19 (andbra)

Available from: 2017-05-18 Created: 2017-05-18 Last updated: 2018-01-23Bibliographically approved

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Fernberg, PatrikJoffe, Roberts

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