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Development of novel high T-g polyimide-based composites. Part II: Mechanical characterisation
Luleå University of Technology, Sweden.ORCID-id: 0000-0002-1594-2688
RISE - Research Institutes of Sweden, Material och produktion, SICOMP. Luleå University of Technology, Sweden.
Luleå University of Technology, Sweden.
2018 (engelsk)Inngår i: Journal of composite materials, ISSN 0021-9983, E-ISSN 1530-793X, Vol. 52, nr 2, s. 261-274Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

In this study, the mechanical performance assessment of a newly developed carbon fibre-reinforced polyimide composite system T650/NEXIMID (R) 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 (R) 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 (R) MHT-R composites along with exceptionally high T-g (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%.

sted, utgiver, år, opplag, sider
2018. Vol. 52, nr 2, s. 261-274
Emneord [en]
Polymer-matrix composites, high-temperature properties, mechanical testing, resin transfer moulding
HSV kategori
Identifikatorer
URN: urn:nbn:se:ri:diva-33732DOI: 10.1177/0021998317705706Scopus ID: 2-s2.0-85040032640OAI: oai:DiVA.org:ri-33732DiVA, id: diva2:1197808
Tilgjengelig fra: 2018-04-14 Laget: 2018-04-14 Sist oppdatert: 2019-06-18bibliografisk kontrollert

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