Cone calorimeter study of polyethylene flame retarded with expandable graphite and intumescent fire-retardant additives

dc.contributor.authorKruger, Hermanus Joachim
dc.contributor.authorFocke, Walter Wilhelm
dc.contributor.authorMhike, Washington
dc.contributor.authorTaute, A.T. (Albertus)
dc.contributor.authorRoberson, Albert
dc.contributor.authorOfosu, Osei
dc.date.accessioned2015-07-04T07:27:30Z
dc.date.available2015-07-04T07:27:30Z
dc.date.issued2014-06
dc.description.abstractPolyethylene was flame retarded with two intumescent-type additives, 3,5-diaminobenzoic acid phosphate and ethylenediamine phosphate, which differ with respect to their decomposition onset temperatures, along with varying ratios of two grades of expandable graphite, also differing with respect to their onset temperatures for exfoliation. Hot-pressed sheet specimens were subjected to evaluation in a cone calorimeter. Although the best char yields were obtained with formulations containing the higher decomposition temperature intumescent, 3,5-diaminobenzoic acid phosphate, the overall best performance was realized using the lower decomposition temperature intumescent, ethylenediamine phosphate, when compounded together with the low exfoliation temperature expandable graphite. These results are attributed to the formation, at the burning surface, of a more cohesive char with better thermal and mass transfer barrier properties.en_ZA
dc.description.librarianhb2015en_ZA
dc.description.sponsorshipSouth African Research Chairs Initiative of the Department of Science and Technology (DST) and the National Research Foundation (NRF).en_ZA
dc.description.urihttp://jfs.sagepub.comen_ZA
dc.identifier.citationKruger, HJ, Focke, WW, Mhike, W, Taute, A, Roberson, A & Ofosu, O 2014, 'Cone calorimeter study of polyethylene flame retarded with expandable graphite and intumescent fire-retardant additives', Journal of Fire Sciences, vol. 32, no. 6, pp. 498-517.en_ZA
dc.identifier.issn0734-9041 (print)
dc.identifier.issn1530-8049 (online)
dc.identifier.other10.1177/0734904114538755
dc.identifier.urihttp://hdl.handle.net/2263/46293
dc.language.isoenen_ZA
dc.publisherSageen_ZA
dc.rights© 2014 by Sage Publicationsen_ZA
dc.subjectExpandable graphiteen_ZA
dc.subjectExfoliationen_ZA
dc.subjectIintumescent flame retardanten_ZA
dc.subjectThermal analysisen_ZA
dc.subjectCone calorimeteren_ZA
dc.titleCone calorimeter study of polyethylene flame retarded with expandable graphite and intumescent fire-retardant additivesen_ZA
dc.typePostprint Articleen_ZA

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