Ammonium zeolite and ammonium phosphate applied as fire retardants for microcrystalline cellulose filled thermoplastic composites

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dc.authorid0000-0001-9218-5513en_US
dc.contributor.authorCavdar, Ayfer Donmez
dc.contributor.authorTorun, Sevda Boran
dc.contributor.authorErtaş, Murat
dc.contributor.authorMengeloglu, Fatih
dc.date.accessioned2021-03-20T20:12:33Z
dc.date.available2021-03-20T20:12:33Z
dc.date.issued2019
dc.departmentBTÜ, Orman Fakültesi, Orman Endüstri Mühendisliği Bölümüen_US
dc.descriptionTorun, Sevda Boran/0000-0001-5403-1150;en_US
dc.description.abstractIn this study, mechanical, thermal, fire and morphological properties of thermoplastic composites filled with fire retardants (FRs) and microcrystalline cellulose (MCC) were investigated in detail. The composites were produced through the extrusion + injection molding methods using MCC, FRs and high density polyethylene (HDPE). Based on the composites dry-weights, 10%wt. of mono ammonium phosphate (MAP), ammonium zeolite (AZ) or natural zeolite (NZ) were incorporated into polymer matrix for improving reaction of fire of the composites, and their effects on technological properties were evaluated. MAP had a positive effect on tensile and flexural moduli of the composites whilst tensile strength, elongation at break and impact strength properties of the composites were decreased. The highest tensile and flexural strength values were obtained from HDPE/MCC/AZ samples, respectively, 22.13 MPa and 29.93 MPa. The minimum value for impact strength was obtained from HDPE/M/MAP5/AZ5 composite (1.68 kJ/m(2)) whereas the maximum value for impact strengths were achieved from control HDPE composite (5.15 kJ/m(2)) and HDPE/MAP10 (3.30 kJ/m(2)). Flexural strength and flexural modulus values of all HDPE composites were higher than the requirement by the ASTM D 6662 standard for polyolefin based plastic lumber decking boards. As the MCC content increased, the initial, maximum and final degradation temperatures of HDPE composites have not been influenced greatly. Thermogravimetric and differential scanning calorimetry analyses showed that the maximum rate weight loss temperature and the crystalline features of HDPE have not been significantly influenced by addition of MCC. Limiting Oxygen Index (LOI) level and charring increased when FRs were incorporated into polymer matrix. In addition, the burning rates of HDPE/MAP10 and HDPE/MCC/MAP5/AZ5 composite were slowed down by 64% and 62%, respectively. It was found that no burning in HDPE/MCC/MAP10 was observed composite during the horizontal burning test. Especially; HDPE/MCC/MAP samples can be used for building products because they meet the CC1 (plastic materials that have a burning extent of 25 mm or less where tested at a nominal thickness of 1.5 mm, or in the thickness intended for use, in accordance with ASTM D 635) class requirements of international building code which means a model building code improved by the International Code Council. In the light of obtained results, it was specified that use of FRs improved morphological, thermal and reaction of fire of the MCC filled HDPE composites.en_US
dc.description.sponsorshipScientific Research Projects Coordination Unit of Karadeniz Technical UniversityKaradeniz Technical University [5174]en_US
dc.description.sponsorshipThis work was supported by Scientific Research Projects Coordination Unit of Karadeniz Technical University. Project number was 5174. The authors also would like to acknowledge the contribution of the COST Action FP1404.en_US
dc.identifier.doi10.1016/j.firesaf.2018.11.008en_US
dc.identifier.endpage209en_US
dc.identifier.issn0379-7112
dc.identifier.issn1873-7226
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage202en_US
dc.identifier.urihttp://doi.org/10.1016/j.firesaf.2018.11.008
dc.identifier.urihttps://hdl.handle.net/20.500.12885/614
dc.identifier.volume107en_US
dc.identifier.wosWOS:000499948100018en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorErtaş, Murat
dc.language.isoenen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofFire Safety Journalen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectMicrocrystalline celluloseen_US
dc.subjectAmmonium zeoliteen_US
dc.subjectMono ammonium phosphateen_US
dc.subjectThermoplasticen_US
dc.subjectCompositeen_US
dc.subjectFire retardanten_US
dc.titleAmmonium zeolite and ammonium phosphate applied as fire retardants for microcrystalline cellulose filled thermoplastic compositesen_US
dc.typeArticleen_US

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