The effect of 3D structure design on fire behavior of polyethylene terephthalate glycol containing aluminum hypophosphite and melamine cyanurate

0533744 - ÚTAM 2022 RIV US eng J - Journal Article
Zárybnická, Lucie - Mácová, Petra - Machová, Dita - Rychlý, J. - Viani, Alberto
The effect of 3D structure design on fire behavior of polyethylene terephthalate glycol containing aluminum hypophosphite and melamine cyanurate.
Journal of Applied Polymer Science. Roč. 138, č. 12 (2021), č. článku 50072. ISSN 0021-8995. E-ISSN 1097-4628
Institutional support: RVO:68378297
Keywords : degradation * flame retardance * manufacturing * thermal properties
OECD category: Polymer science
Impact factor: 3.057, year: 2021
Method of publishing: Limited access
https://doi.org/10.1002/app.50072

Effect of the shape of 3D printed samples on fire behavior of polyethylene terephthalate glycol (PET-G) and PET-G additivated with a mix of aluminum hypophosphite (AHP) and melamine cyanurate as flame retardant, was investigated. The additives improved fire performance (e.g., maximum average rate of heat emission, total oxygen consumption, heat release rate indices) irrespective of structural complexity, favoring carbonaceous char formation. However, at increasing structural complexity, they promoted higher release of smoke, compared to neat PET-G, because of a change in the prevalent retardation mechanism, which became dominated by the flame inhibition action of AHP. Consequently, the synergistic effect obtained combining the two additives, was hindered. Impact of product design on mechanisms of fire retardation helps in devising engineering solutions aimed at meeting required level of fire-safety performance, which should be tailored to the specific product.
Permanent Link: http://hdl.handle.net/11104/0312039