Effect of expansion temperature on the properties of expanded graphite and modified linear low density polyethylene / Xiuyan Pang in INTERNATIONAL POLYMER PROCESSING, Vol. 37, N° 3 (2022)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. 37, N° 3 (2022) . - p. 271-286 Titre : Effect of expansion temperature on the properties of expanded graphite and modified linear low density polyethylene Type de document : texte imprimé Auteurs : Xiuyan Pang, Auteur ; Wenyu Zhang, Auteur ; Yafang Meng, Auteur ; Meifang Ma, Auteur ; Jianzhong Xu, Auteur Année de publication : 2022 Article en page(s) : p. 271-286 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation Combustion Composites -- Propriétés mécaniques Formulation (Génie chimique) Graphite Ignifugeants Composé chimique utilisé pour réduire l'inflammabilité. Il peut être incorporé au produit durant sa fabrication ou appliqué ultérieurement à sa surface. Matières plastiques -- Additifs Mesure Polyéthylène basse densité linéaire Thermocinétique Index. décimale : 668.9 Polymères Résumé : To study the influence of expansion temperature on the properties of expanded graphite (EBG), EBG300, EBG600, and EBG900 were prepared by heating expandable graphite (EG) at 300, 600, and 900 °C, respectively. Furthermore, the influence of these EBGs on the combustion performance and physical-mechanical properties of linear low density polyethylene (LLDPE) were investigated. The expansion volumes of EBG300, EBG600, and EBG900 increase with the rise of temperature, and a four-stage ordered structure of “graphite worm” gradually forms. The thermal stability increases gradually for EBG300, EBG600, and EBG900. On the contrary, the thermal conductivity decreases in sequence. However, the incorporation of EBG900 promotes the formation of a continuous network structure and makes the modified LLDPE to present the best heat transmission. The addition of 30 wt% of these EBGs significantly improves LLDPE’s flame retardancy and high-temperature thermal stability. The total heat release, the peak value of heat release rate, and the fire growth index of 70LLDPE/30EBG300 reduce by 69, 91, and 87% respectively, while the effective fire performance index improves seven times. The addition of these additives reduces the tensile strength and elongation at break, the larger the EBG size, the more obvious the effect. Note de contenu : - EXPERIMENTAL : Raw materials - Sample preparation - Measurements and characterization - RESULTS AND DISCUSSION : Influence of expansion temperature on EBG properties - Influence of EG, EBG300, EBG600, and EBG900 on LLDPE properties - Table 1 : Formulation of the modified LLDPE composites - Table 2 : Thermal conductivity of EG, EBG300, EBG600, and EBG900 - Table 3 : Density and thermal conductivity of the LLDPE composites - Table 4 : LOI, UL-94 level, EFF, and SE - Table 5 : CCT results for the LLDPE composites - Table 6 : TG/DTG data for the LLDPE composites DOI : https://doi.org/10.1515/ipp-2022-0003 En ligne : https://drive.google.com/file/d/1N7jAae7A2BdgIJsnfodxCA9GoerFh_GO/view?usp=shari [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37906 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
23738	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 1 / 1)