| Revista: | Polimeros (Sao Carlos) |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000313986 |
| ISSN: | 1678-5169 |
| Autors: | Rocha, Sonia D.F1 Ciminelli, Virginia S.T2 |
| Institucions: | 1Universidade Federal de Minas Gerais, Departamento de Engenharia Quimica, Belo Horizonte, Minas Gerais. Brasil 2Universidade Federal de Minas Gerais, Departamento de Engenharia Metalurgica e de Materiais, Belo Horizonte, Minas Gerais. Brasil |
| Any: | 2001 |
| Període: | Jul-Sep |
| Volum: | 11 |
| Número: | 3 |
| Paginació: | 116-120 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Nota breve o noticia |
| Enfoque: | Experimental, analítico |
| Resumen en inglés | The present work investigates the use of magnesium hydroxide, produced by magnesia hydration, as a fire retardant in polymers. The hydration was carried out in an autoclave, at temperature of 130°C for 1 hour, and the product was further submitted to cominution in a jet mill. The solids were characterized with regard to their chemical composition, particle size distribution, surface area and morphology. The performance evaluation of the hydroxide as a flame retardant for a copolymer of nylon 6-6,6 was carried out according to the UL94 specifications for vertical burning tests. V-0 flammability rating at 1.6 mm (60% magnesium hydroxide-filled nylon composite) and at 3.2 mm (40% magnesium hydroxide filled nylon composite) were achieved. Mechanical properties were maintained at the desired values. These results indicate that the hydroxide obtained from magnesia hydration can be successfully employed as a fire retardant for nylon 6-6,6 |
| Disciplines | Ingeniería |
| Paraules clau: | Ingeniería de materiales, Ingeniería química, Retardantes de fuego, Hidróxido de magnesio, Nylon 6-6,6 |
| Keyword: | Engineering, Chemical engineering, Materials engineering, Fire retarder, Magnesium hydroxide, Nylon 6-6,6 |
| Text complet: | Texto completo (Ver HTML) |
