[article]
| Titre : |
Waterborne polyurethane/O-MMT nanocomposites for flame retardant leather finishing |
| Type de document : |
texte imprimé |
| Auteurs : |
Zhang Xiuli, Auteur ; Chen Yi, Auteur ; Haojun Fan, Auteur ; Bi Shi, Auteur |
| Année de publication : |
2010 |
| Article en page(s) : |
p. 77-83 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Cetyltrimethylammonium bromide (CTAB) and 3-aminopropyltriethoxy-silane (APTES) were used as modifiers to prepare a reactive and organophilic montmorillonite (O-MMT), then from this waterborne polyurethane (WPU/O-MMT nanocomposite dispersions for leather flame retardant finishing were prepared through in-situ intercalation polymerization. Qualitative evidence of the presence of chemically-attached APTES on O-MMT is confirmed by FT-IR and an exfoliated structure of O-MMT in WPU matrix is confirmed by X-ray diffraction (XRD). The SEM analysis reveals that the O-MMT platelets are homogeneously dispersed throughout the polymer matrix when the O-MMT content is lower than 4wt%, whereas over 4wt%, inhomogeneous dispersion of the O-MMT platelets is observed. Performance study indicates that the incorporation of O-MMT,on one hand, is capable of enhancing the thermal stability and mechanical properties of WPU efficiently ; on the other hand, enhancing the flame retardancy of finished leathers. From the analysis of vertical flame and oxygen index (OI) test,the nanocomposite with 4wt% O-MMT loading shows the optimum flame retardant effect, the OI value increases by 3.6 units. |
| En ligne : |
https://drive.google.com/file/d/1x0drpUMfrC-nn_fURNs-hjm2CrVZqRPh/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9184 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 94, N° 2 (03-04/2010) . - p. 77-83
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Waterborne polyurethane/O-MMT nanocomposites for flame retardant leather finishing in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 94, N° 2 (03-04/2010)
