The impact of guanidine carbonate incorporation on the molecular structure of polyacrylonitrile precursor fiber stabilized by a multistep heat treatment strategy

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dc.authoridTUNCEL, Kemal Sahin/0000-0001-5095-6543
dc.authoridKARACAN, ISMAIL/0000-0001-5131-6601
dc.authoridRAHMAN, MD. MAHBUBOR/0000-0001-7104-9459
dc.authoridDemirel, Asst. prof. Tuba/0000-0002-5760-3705
dc.contributor.authorTuncel, Kemal Sahin
dc.contributor.authorRahman, Md Mahbubor
dc.contributor.authorDemirel, Tuba
dc.contributor.authorKaracan, Ismail
dc.date.accessioned2024-12-24T19:24:21Z
dc.date.available2024-12-24T19:24:21Z
dc.date.issued2022
dc.departmentSiirt Üniversitesi
dc.description.abstractThermal-oxidative stabilization of the polyacrylonitrile (PAN) precursor was performed employing a multi-step heat treatment strategy in an air circulating furnace. In this approach, the applied temperature was gradually increased from 200 degrees C to 250 degrees C employing several stages for different stabilization durations. Fifteen percent guanidine carbonate (GC) was found as optimum to incorporate with the PAN precursor fibers to accelerate the thermal-oxidative stabilization process. Characterization techniques, including X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), tensile strength, volume density, linear density, fiber thickness, and burning test have been performed to monitor the changes in PAN structure. Test results of the stabilized samples were compared with the reference sample results to demonstrate the accelerating effect of GC integration. Findings showed that GC pretreatment enhanced and accelerated the cyclization of nitrile groups in the PAN polymer structure and allowed the quicker formation of a thermally stable structure. The analysis of the experimental results revealed that GC integration and employing the multi-step heat treatment strategy helps greatly to cut the overall PAN-based carbon fiber production cost.
dc.identifier.doi10.1002/pen.25908
dc.identifier.endpage1095
dc.identifier.issn0032-3888
dc.identifier.issn1548-2634
dc.identifier.issue4
dc.identifier.scopus2-s2.0-85124583234
dc.identifier.scopusqualityQ2
dc.identifier.startpage1081
dc.identifier.urihttps://doi.org/10.1002/pen.25908
dc.identifier.urihttps://hdl.handle.net/20.500.12604/5928
dc.identifier.volume62
dc.identifier.wosWOS:000755107700001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWiley
dc.relation.ispartofPolymer Engineering and Science
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241222
dc.subjectcarbon fibers
dc.subjectguanidine carbonate
dc.subjectmulti-step heat treatment
dc.subjectpolyacrylonitrile
dc.subjectthermal analysis
dc.titleThe impact of guanidine carbonate incorporation on the molecular structure of polyacrylonitrile precursor fiber stabilized by a multistep heat treatment strategy
dc.typeArticle

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