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Assessment of the Properties of two High-Temperature Thermosetting Polyimides
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0002-5948-7525
Nexam Chemical AB.
2022 (English)In: ECCM 2022 - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability / [ed] Vassilopoulos, Anastasios P.; Michaud, Véronique, EPFL Lausanne, Composite Construction Laboratory , 2022, Vol. 6, p. 8-15Conference paper, Published paper (Other academic)
Abstract [en]

A novel thermosetting polyimide, NEXIMID R300, is introduced and compared with the commercial MHT-R in terms of fracture toughness, thermal properties and ageing behaviour. The new R300 formulation has an altered chemical composition compared to the MHT-R, resulting in a reduced cross-linking density, and was presented as a less susceptible to cracking and a more processable alternative during composite manufacturing with resin transfer moulding. The study uses fracture toughness with single edge notched beam setup, DSC, dilatometry, weight loss measurements and optical microscopy for investigation of the neat resin properties of both material. A slight increase in fracture toughness and a decrease in glass transition temperature for the R300 formulation is observed.

Place, publisher, year, edition, pages
EPFL Lausanne, Composite Construction Laboratory , 2022. Vol. 6, p. 8-15
Keywords [en]
Ductile fracture, Glass transition, Polyimides, Resin transfer molding, Resins, Thermosets, Ageing behavior, Chemical compositions, Composite manufacturing, Cross-linking density, DSC, Highest temperature, Processable, Property, Resin-transfer molding, Thermosetting polyimides, Fracture toughness
National Category
Composite Science and Engineering
Research subject
Polymeric Composite Materials
Identifiers
URN: urn:nbn:se:ltu:diva-96908Scopus ID: 2-s2.0-85149412073OAI: oai:DiVA.org:ltu-96908DiVA, id: diva2:1756946
Conference
20th European Conference on Composite Materials (ECCM20), Lausanne, Switzerland, June 26-30, 2022
Note

ISBN för värdpublikation: 978-2-9701614-0-0

Available from: 2023-05-15 Created: 2023-05-15 Last updated: 2023-05-15Bibliographically approved

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Petkov, ValeriFernberg, Patrik

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