INVESTIGADORES
CASTILLO luciana Andrea
artículos
Título:
Single polymer composite sheets from polypropylene nonwoven fabric and films. Influence of processing conditions on final properties
Autor/es:
YAMILA VAZQUEZ; LUCIANA CASTILLO; SILVIA BARBOSA
Revista:
POLYMER COMPOSITES
Editorial:
JOHN WILEY & SONS INC
Referencias:
Lugar: New York; Año: 2020 p. 1 - 10
ISSN:
0272-8397
Resumen:
Single polypropylene (PP) composites from a film/nonwoven fabric/film was obtained by hot calendering in order to develop recyclable, flexible, and low‐cost sheets. Processing temperature (Tp) influence on morphology and mechanical properties of developed single composites was analyzed. Two different values of roll temperature (140 and 150°C) were studied, keeping constant rotation speed and rolls distance. Results revealed notable differences in materials microstructure induced by a difference of only 10°C in Tp. Sheets obtained at 140°C presented a well‐defined film/nonwoven fabric/film structure, meanwhile the highest Tp led to a greater melting extent of external films which penetrate into the fabric, creating a more compact structure. Moreover, results confirmed that changes in Tp can induce a differential mechanical performance showing higher strength, and ductility in sheets processed at 150°C. Homogeneous sheets with good mechanical behavior, proper nonwoven fabric/films adhesion, and uniform thickness were obtained.