Synthesis and properties of novel high thermally stable polyimide-chrysotile composites as fire retardant materials

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dc.authoridSEÇKİN, Turgay/0000-0001-8483-7366
dc.authoridKoytepe, Suleyman/0000-0002-4788-278X
dc.authorwosidKöytepe, Süleyman/AAA-4168-2021
dc.authorwosidSEÇKİN, Turgay/ABG-7537-2020
dc.contributor.authorSeckin, Turgay
dc.contributor.authorYildirim, Ayber
dc.contributor.authorKoytepe, Suleyman
dc.date.accessioned2024-08-04T20:39:58Z
dc.date.available2024-08-04T20:39:58Z
dc.date.issued2014
dc.departmentİnönü Üniversitesien_US
dc.description.abstractNovel high thermally stable polyimide-chrysotile (PI-Chr) composites were synthesized. Firstly, Chrysotile (Chr) was modified with 3-aminopropyltriethoxysilane (APS). Poly(amic acid) solution was synthesized from pyromellitic dianhydride (PMDA) and 4,4'-diaminodiphenyl ether. Then, PI-Chr composites were prepared from poly(amic acid) solution and different ratios of modified Chr. Prepared PI-Chr composites were characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray spectroscopy and thermal analysis techniques. Thermal analysis results showed that the PI-Chr composites have higher decomposition temperatures in comparison with the pure PIs. A 10% weight loss belonging to PI-Chr composites was observed between 489 degrees C and 536 degrees C in air atmosphere, but this value was 468 degrees C in air for pure PIs. The glass transition temperatures (T(g)s) of the PI-Chr composites were 373 degrees C-38 degrees C, depending upon the amount of the Chr. PI-Chr composites exhibited improved thermal stability. The activation energies (E(a)s) of the thermal degradation reaction were calculated using the Kissinger method for pure PI and composites. The E(a)s of the PI-Chr composites were found to be 77 and similar to 117 kJ/mol. The fire retardant properties of Chr in the PI matrix were also tested by the total heat release test. The introduction of Chr in the composites leads to a slight increase in fire retardant properties thermal stability.en_US
dc.identifier.doi10.1515/polyeng-2013-0255
dc.identifier.endpage802en_US
dc.identifier.issn0334-6447
dc.identifier.issn2191-0340
dc.identifier.issue9en_US
dc.identifier.scopus2-s2.0-84913607615en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage793en_US
dc.identifier.urihttps://doi.org/10.1515/polyeng-2013-0255
dc.identifier.urihttps://hdl.handle.net/11616/96614
dc.identifier.volume34en_US
dc.identifier.wosWOS:000345654900002en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherWalter De Gruyter Gmbhen_US
dc.relation.ispartofJournal of Polymer Engineeringen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectchrysotileen_US
dc.subjectcompositeen_US
dc.subjectfire retardancy propertiesen_US
dc.subjectKissinger methoden_US
dc.subjectpolyimideen_US
dc.titleSynthesis and properties of novel high thermally stable polyimide-chrysotile composites as fire retardant materialsen_US
dc.typeArticleen_US

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