| Titre : | Thin films of intumescent flame retardant - polyacrylamide and exfoliated graphene oxide fabricated via layer - by - layer assembly for improving flame retardant properties of cotton fabric (2012) |
| Auteurs : | Guobo Huang, Auteur ; Jianguo Yang, Auteur ; Jianrong Gao, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 51 N° 38, Septembre 2012) |
| Article en page(s) : | pp. 12355-12366 |
| Note générale : | Industrial chemistry |
| Langues : | Anglais |
| Tags : | Flame retardant Thin film |
| Résumé : | A novel intumescent flame retardant-polyacrylamide (IFR-PAM) was prepared by the copolymerization of N1-(5,5-dimethyl-1,3,2-dioxaphosphinyl-2-yl)-acrylamide (DPAA) and acrylamide and was used to prepare various IFR-PAM/ graphene oxide (GO) thin films via layer-by-layer (LbL) assembly as a flame retardant coating system for cotton fabric Films assembled with IFR-PAM and GO nanosheets show linear growth as a function of the number of bilayer deposited. Higher hydrophobe DPAA content of IFR-PAM results in much thicker assemblies due to hydrophobic association. The results from X-ray diffraction (XRD), atomic force microscopy (AFM), and scanning electronic microscopy (SEM) indicate that the IFR-PAM/ GO ultrathin films with high homogeneity and orientation are formed by LbL assembly driven by hydrogen interaction. The thermogravimetric analysis (TGA) results indicate that the IFR-PAM/GO coating improves the thermal stability of cotton fabric. Cone calorimeter testing shows that the IFR-PAM/GO-coated fabrics become less flammable with lower peak heat release rate (PHRR) and longer time to ignition (TTI). SEM images demonstrate that the surface of the IFR-PAM/GO-coated fabrics is covered by a layer of continuous and compact char after combustion. |
| ISSN : | 0888-5885 |
| En ligne : | http://cat.inist.fr/?aModele=afficheN&cpsidt=26399687 |
