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Mechanical performance of novel high Tg polyimide matrix carbon fibre-reinforced laminates
Luleå tekniska universitet, Swerea SICOMP AB, Swerea SICOMP AB, Box 271, 941 26, Piteå.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.
2015 (English)Conference paper, Presentation (Refereed)
Abstract [en]

In this study, an assessment of the mechanical performance 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 temperature in order to determine the tensile, compressive, flexural and interlaminar shear properties. Moreover, an additional testing campaign was conducted, using a T650/NEXIMID® MHT-R laminate in which the sizing had been thermally removed prior to manufacturing, in order to investigate the effect of fiber treatment on the mechanical performance. The experimental results indicated that the T650/NEXIMID® MHT-R composites along with exceptionally high Tg (~370-420ºC) exhibited very good elastic properties in comparison with other polyimide and epoxy-based systems and, although slightly lower than the best results from literature, promising strength values. Finally, the thermal removal of the sizing did not affect the tensile, compression and flexural properties, however the interlaminar shear strength was significantly deteriorated.

Place, publisher, year, edition, pages
Keyword [en]
high temperature composites, mechanical properties, Polyimide, Materials science - Construction materials
Keyword [sv]
Teknisk materialvetenskap - Konstruktionsmaterial
Research subject
Polymeric Composite Materials
URN: urn:nbn:se:ltu:diva-35432Local ID: 9f81d0bb-2e2d-45ef-8012-72b392c49dfcOAI: diva2:1008685
International Conference on Composite Materials : 19/07/2015 - 24/07/2015
Godkänd; 2015; 20150818 (joffe)Available from: 2016-09-30 Created: 2016-09-30Bibliographically approved

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