Effect of Nucleating Fillers on the Structure and Properties of Polypropylene Blends

Shiwei Wang (1, 2) , Sandrine Hoppe (1) , Mingbo Yang (2)

1 LRGP - Laboratoire Réactions et Génie des Procédés
2 Sichuan Univ, Coll Polymer Sci & Engn, State Key Lab Polymer Mat Engn

The effect of three different fillers on the structure and properties of polypropylene blends were investigated. The beta nucleating agent can successfully induce beta crystal in modified iPP blends and the turning point of the properties appears at the content of 0.5 wt%. For the properties of carbon nanotube modified iPP blends, there is no turning point because of its dominant alpha-crystalline morphology. The beta NA supported carbon nanotube shows better induction ability than the single beta NA or single carbon nanotube, there is also a turning point existing at the content of 0.5 wt%.

Mots clés: beta nucleating agent; Carbon nanotube; Crystallization behaviour; Dynamic mechanical properties; Rheological properties; WALLED CARBON NANOTUBES; CRYSTALLIZATION BEHAVIOR; ISOTACTIC POLYPROPYLENE; COMPOSITES; AGENT; NANOCOMPOSITES; DISPERSION; STABILITY; ETHYLENE; MELTS

Domaines: Génie des procédés; Polymères

Shiwei Wang, Sandrine Hoppe, Mingbo Yang. Effect of Nucleating Fillers on the Structure and Properties of Polypropylene Blends. Polymer-Plastics Technology and Engineering, 2012, 51 (10), pp.998-1005. ⟨10.1080/03602559.2012.679381⟩. ⟨hal-00778378⟩