| Titre : |
Effects of zinc borate on the flame retardancy performance of aluminum diethylphosphinate in polyamide-6 and its composites |
| Type de document : |
texte imprimé |
| Auteurs : |
O. Polat, Auteur ; Cevdet Kaynak, Auteur |
| Année de publication : |
2019 |
| Article en page(s) : |
p. 59-71 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Borate de zinc
Caractérisation
Composites -- Analyse
Composites à fibres courtes
Compoundage
Diéthylphosphinate d'aluminium
Essais de comportement au feu
IgnifugeantsComposé chimique utilisé pour réduire l'inflammabilité. Il peut être incorporé au produit durant sa fabrication ou appliqué ultérieurement à sa surface.
Matières plastiques -- Additifs
Mélanges (chimie)
Moulage par injection-compression
Polyamide 6
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
In this study, the flame retardancy contribution of zinc borate when used together with a traditional flame retardant (aluminum diethylphosphinate compound) was investigated for neat polyamide-6 and for 15 wt% short glass fiber reinforced composite. Melt mixing with twin-screw extrusion was the compounding method while injection and compression molding were the shaping methods of specimens. Three different flammability tests (limiting oxygen index, UL-94 vertical burning, mass loss calorimetry) indicated that many flame retardancy parameters could be improved significantly by replacing a certain amount of aluminum diethylphosphinate with zinc borate. For example, using aluminum diethylphosphinate alone resulted in only 32 % suppression in the value of the peak heat release rate for neat polyamide-6, while it was 82 % (more than two-fold) when used together with zinc borate. It was revealed by evolved gas analyses, char analyses, x-ray diffraction and thermogravimetry that the main contribution of zinc borate to aluminum diethylphosphinate was in terms of a barrier mechanism via formation of additional boron phosphate inorganic content in the barrier layer. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Compounding and shaping - Characterization and testing
- RESULTS AND DISCUSSION : LOI and UL-94 - MLC - Mechanisms - TGA - XRD - EGA - Tensile tests |
| DOI : |
10.3139/217.3579 |
| En ligne : |
https://drive.google.com/file/d/1bxFlifBjCLVFwbU5IPO4shrANrsITLt_/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31912 |
in INTERNATIONAL POLYMER PROCESSING > Vol. XXXIV, N° 1 (03/2019) . - p. 59-71
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