000171289 001__ 171289
000171289 005__ 20260520092808.0
000171289 0247_ $$2doi$$a10.1007/s10965-022-03381-z
000171289 0248_ $$2sideral$$a132598
000171289 037__ $$aART-2022-132598
000171289 041__ $$aeng
000171289 100__ $$0(orcid)0000-0002-3125-5802$$aPuértolas, José Antonio$$uUniversidad de Zaragoza
000171289 245__ $$aInfluence of mechanical blending method and consolidation temperature on electrical properties of the prepared graphene nanoplatelet/UHMWPE composite
000171289 260__ $$c2022
000171289 5060_ $$aAccess copy available to the general public$$fUnrestricted
000171289 5203_ $$aThe high performance of ultra-high molecular weight polyethylene (UHMWPE) has led to its use in aerospace, industrial and medical applications. Reinforced with conductive fllers, it has been used to develop conductive polymer composites through the formation of a segregated structure. For assessing the infuence of processing conditions on electrical properties, coatings based on graphene nanoplatelet (GNP)/UHMWPE composites at a GNP content of 0.1 to 8 wt% were prepared, by two diferent mechanical blending methods, i.e., using a ball mill (BM) or blade mixer (BL), followed by a hot-compression process at diferent consolidation temperatures, 175 ºC or 240 ºC. Percolation thresholds at 0.5 wt% and 3.0 wt% were observed with the aforementioned mechanical techniques, respectively, with a jump in conductivity exceeding ten orders of magnitude. The use of the highest consolidation temperatures provided a decrease of the percolation threshold to 0.3 wt% in the composites prepared by ball mill, while maintain the same critical content by using the blade mixer technique. Images obtained by optical and scanning electron microscopy allowed to associate the former behavior to the diferent relative position of GNP and UHMWPE powder: the ball mill faked the GNPs onto the surface while the blade mixer embedded the GNPs into voids in the fbrillary structure. Lock-in thermography (LIT) revealed on the surface of the composite manufactured by ball milling a better distribution of the graphene and the corresponding electrical paths, compared with the composites prepared by blade mixer.
000171289 536__ $$9info:eu-repo/grantAgreement/ES/DGA-FSE/RIS3-LMP21-18$$9info:eu-repo/grantAgreement/ES/DGA-FSE/T48-17R
000171289 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000171289 590__ $$a2.8$$b2022
000171289 591__ $$aPOLYMER SCIENCE$$b44 / 85 = 0.518$$c2022$$dQ3$$eT2
000171289 592__ $$a0.429$$b2022
000171289 593__ $$aMaterials Chemistry$$c2022$$dQ2
000171289 593__ $$aPolymers and Plastics$$c2022$$dQ2
000171289 593__ $$aOrganic Chemistry$$c2022$$dQ3
000171289 594__ $$a4.2$$b2022
000171289 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000171289 700__ $$aMartínez Morlanes, María José
000171289 700__ $$0(orcid)0000-0002-4502-7990$$aPascual, Francisco Javier
000171289 700__ $$aMorimoto, Takahiro
000171289 7102_ $$15001$$2065$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Cienc.Mater. Ingen.Metal.
000171289 773__ $$g30, 1 (2022), 21 [15 pp]$$pJ. Polym. Res.$$tJOURNAL OF POLYMER RESEARCH$$x1022-9760
000171289 8564_ $$s4364403$$uhttps://zaguan.unizar.es/record/171289/files/texto_completo.pdf$$yPostprint
000171289 8564_ $$s2394599$$uhttps://zaguan.unizar.es/record/171289/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000171289 909CO $$ooai:zaguan.unizar.es:171289$$particulos$$pdriver
000171289 951__ $$a2026-05-20-08:31:37
000171289 980__ $$aARTICLE