Artículo
Effect of montmorillonite on the crystallization and thermal degradation of poly(propylene-coethylene- co-1-butene) nanocomposites
Fecha de publicación:
07/2016
Editorial:
Sage Publications
Revista:
Journal of Thermoplastic Composite Materials
ISSN:
0892-7057
e-ISSN:
1530-7980
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Polymeric nanocomposites based on poly(propylene-co-ethylene-co-1-butene) (PEBC) were elaborated by melt mixing using an organophilic montmorillonite (o-MMT) and maleated PEBC (PEBCg) as compatibilizer. The effect of clay concentration, PEBCg:o-MMT ratio, and grafting degree of the compatibilizer were studied. X-ray diffraction and scanning electron microscopy show formation of partially intercalated structures in all compatibilized composites with well-distributed small tactoids. According to the differential scanning calorimetry results, the anhydride groups of the compatibilizer have a marginal nucleating effect, while the o-MMT causes a slight decrease in the crystallization temperature of the polymer. PEBC presents the largest activation energy of crystallization (Eα), while the composites show lower Eα than their matrices. It is also observed that the rate of degradation of PEBC is not affected by the presence of PEBCg. The nanoclay, on the other hand, retards the decomposition process of the polymeric matrix in about 40°C and augments its rate of degradation approximately four times.
Palabras clave:
Nanocomposites
,
Propylene Copolymer
,
Montmorillonite
,
Thermal Behavior
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(PLAPIQUI)
Articulos de PLANTA PILOTO DE INGENIERIA QUIMICA (I)
Articulos de PLANTA PILOTO DE INGENIERIA QUIMICA (I)
Citación
Riechert, Verónica Mariel; Failla, Marcelo Daniel; Quinzani, Lidia Maria; Effect of montmorillonite on the crystallization and thermal degradation of poly(propylene-coethylene- co-1-butene) nanocomposites; Sage Publications; Journal of Thermoplastic Composite Materials; 30; 6; 7-2016; 741-761
Compartir
Altmétricas