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Time-dependent properties of newly developed multiscale UHMWPE composites
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Maskinelement.ORCID-id: 0000-0001-6224-1473
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Materialvetenskap.ORCID-id: 0000-0001-5550-2962
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Materialvetenskap. Institue of Structural Engineering and Reconstruction, Riga Technical University, LV 1658, Riga, Latvia.ORCID-id: 0000-0001-8050-2294
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Materialvetenskap.ORCID-id: 0000-0002-5210-4341
Vise andre og tillknytning
2022 (engelsk)Inngår i: Polymer testing, ISSN 0142-9418, E-ISSN 1873-2348, Vol. 105, artikkel-id 107400Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Ultra-high molecular-weight polyethylene (UHMWPE) composites reinforced with Graphene Oxide (GO), Nanodiamonds (ND), and Short Carbon Fibres (SCF) are characterised for their mechanical performance in tensile and short-term creep tests. A methodology to separate and analyse the materials’ viscoelastic (VE) and viscoplastic (VP) responses is applied and evaluated. The results show a clear dependence of the performance on size scale/morphology of the reinforcements. All composites show time-dependent VP responses that can be expressed by Zapas model and fit the experimental data with high accuracy. The analysed VE strains and creep compliance curves reveal the nonlinear stress-dependent VE behaviour of all composites at all tested creep stresses. Combining multiscale reinforcements results in an improvement that surpasses that of individual reinforcements. The results of this work offer valuable input for the design and selection of polymer-based materials in demanding applications where prolonged use under service conditions is critical to their performance.

sted, utgiver, år, opplag, sider
Elsevier, 2022. Vol. 105, artikkel-id 107400
Emneord [en]
UHMWPE, Multiscale, Nanocomposite, Creep, Tensile, Stiffness
HSV kategori
Forskningsprogram
Maskinelement; Polymera kompositmaterial
Identifikatorer
URN: urn:nbn:se:ltu:diva-87818DOI: 10.1016/j.polymertesting.2021.107400ISI: 000724138000001Scopus ID: 2-s2.0-85118901220OAI: oai:DiVA.org:ltu-87818DiVA, id: diva2:1609280
Forskningsfinansiär
The Kempe FoundationsEU, Horizon 2020
Merknad

Validerad;2021;Nivå 2;2021-11-24 (beamah)

Tilgjengelig fra: 2021-11-08 Laget: 2021-11-08 Sist oppdatert: 2023-09-04bibliografisk kontrollert

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Vadivel, Hari ShankarAl-Maqdasi, ZainabPupure, LivaJoffe, RobertsEmami, Nazanin

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