| Titre : |
Study on the thermal stability and combustion performance of polyurethane foams modified with manganese phytate |
| Type de document : |
texte imprimé |
| Auteurs : |
Xu Zhang, Auteur ; Dehe Yuan, Auteur ; Simiao Sun, Auteur ; Handong Li, Auteur ; Zhi Wang, Auteur ; Hua Xie, Auteur |
| Année de publication : |
2023 |
| Article en page(s) : |
p. 300-309 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Combustion
IgnifugeantsComposé chimique utilisé pour réduire l'inflammabilité. Il peut être incorporé au produit durant sa fabrication ou appliqué ultérieurement à sa surface.
Mousses plastiques
Phytate de manganèse
Polyuréthanes
Stabilité thermique
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
A new environmental friendly flame retardant manganese phytate (MnPa) was prepared by a direct precipitation method and the polyurethane foam (PUF) modified with MnPa was obtained by a one-step all-water foaming method. The thermal stability and combustion performance of the MnPa-modified PUF (MnPUF) were investigated by using thermogravimetric (TG), thermal decomposition kinetics, smoke density characterization, limiting oxygen index (LOI) and UL-94 horizontal combustion test. The results indicated that the addition of MnPa significantly improved the thermal stability and combustion performance of the modified PUF. On the basis of the thermogravimetric analysis, Flynn-Wall-Ozawa method, Kissinger method and Coats Redfern method, it could be concluded that PUF with 7.5 wt% MnPa (MnPUF3) had the highest activation energy and the best thermal stability. Smoke density analysis, LOI and horizontal combustion analysis also showed that the addition of MnPa was positively correlated with smoke suppression, LOI value and burning time. The current research results can provide a reference for the subsequent flame retardant modification of PUF. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Preparation of MnPa - Preparation of PUF - Preparation of PUF modified with MnPa - Characterization
- RESULTS AND DISCUSSION : Thermogravimetric analysis - Thermal decomposition dynamics - LOI analysis - Smoke density analysis -
UL-94 horizontal combustion test - Flame retardancy mechanism
- Table 1 : Proportion of reagents used to prepare the polyurethane foam
- Table 2 : Pyrolysis temperature parameters of four kinds of MnPUFs
- Table 3 : Thermogravimetric data of four kinds of MnPUFs at the heating rates of 5 °C and 10 °C
- Table 4 : Pyrolysis kinetic parameters of four kinds of MnPUFs at different conversion rates with Flynn-Wall-Ozawa method
- Table 5 : Pyrolysis kinetic parameters of four kinds of MnPUFs with Kissinger method
- Table 6 : Pyrolysis kinetic data of four kinds of MnPUFs with Coats Redfern method at different heating rates
- Table 7 : Horizontal combustion data of four kinds of MnPUFs |
| DOI : |
https://doi.org/10.1515/ipp-2022-4278 |
| En ligne : |
https://drive.google.com/file/d/1UMNLgDu4_I2iLD1mZrc-1_xsJJYZUfFE/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39693 |
in INTERNATIONAL POLYMER PROCESSING > Vol. 38, N° 3 (2023) . - p. 300-309
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