Effects of collagen fiber addition on the combustion and thermal stability of natural rubber / Weixing Xu in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 2 (Année 2020)  

[article]  inJOURNAL OF LEATHER SCIENCE AND ENGINEERING > Vol. 2 (Année 2020) . - 10 p. Titre : Effects of collagen fiber addition on the combustion and thermal stability of natural rubber Type de document : texte imprimé Auteurs : Weixing Xu, Auteur ; Xintao Wu, Auteur ; Qilin Wen, Auteur ; Shuangyang Li, Auteur ; Yongjiao Song, Auteur ; Bi Shi, Auteur Année de publication : 2020 Article en page(s) : 10 p. Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caoutchouc Caractérisation Charges (matériaux) Collagène Combustion Inflammabilité Polymères à silane modifié Polymères ignifuges Réaction de couplage Stabilité thermique Thermocinétique Wet-blue (tannage) Peau tannée au chrome (le chrome donne une couleur bleue) Index. décimale : 678 Elastomères et produits élastomères Résumé : Collagen fiber (CF) and silane coupling agent-modified collagen fiber (MCF) were used as flame retardant filler for natural rubber (NR) modification. The combustion phenomena and properties of composites blended with different dosages of CF or MCF were compared to elucidate the flame retardant mechanism of the composites. The flame retardancy of NR can be enhanced effectively by increasing nitrogen content (the nitrogen content of CF is about 18%), creating air pockets, and structuring the flame retardant network in the composites. MCF failed to structure a flame retardant network in the composite, indicating that its modification effects of MCF are weaker than those of CF. When CF dosage was 30 wt%, the composite can achieve the best flame retardancy, with limited oxygen index of 29.4% and without smoke and dripping during burning. This study demonstrated a new method for the flame retardant modification of NR. Note de contenu : - EXPERIMENTAL : Materials - Preparation of collagen fiber powder - Preparation of modified collagen fiber powder - Preparation of the CF/NR and the MCF/NR composites - Characterizations - RESULTS AND DISCUSSION : Effect of CF dosage on the flammability of CF/NR composites - Effect of MCF dosage on the flammability of MCF/NR composites - Flame retardant mechanism of NR modified with CF - Table 1 : Pretreatment processes of wet-blue split - Table 2 : The LOI and combustion phenomena of NR and the CF/NR composites - Table 3 : The LOI and combustion phenomena of the MCF/NR composites - Table 4 : The thermal conductivity of NR, C-30 and MC-30 DOI : https://doi.org/10.1186/s42825-020-00040-1 En ligne : https://link.springer.com/content/pdf/10.1186/s42825-020-00040-1.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37460 [article]

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