Abstract
Polypropylene nanocomposites were melt blended and analyzed for both high shear and low shear rheology. Rheological characterization carried out at high shear rates showed lower viscosity values for the nanocomposites compared to the neat polypropylene. Complex viscosity values at low shear rates have shown an increasing trend on increasing nanoclay content. Zero-shear viscosity was found to increase with nanoclay loading. Steady rate sweep test results showed shear thinning of polypropylene and nanocomposites occurring in three steps. First normal stress difference showed higher values for 5 phr nanocomposite up to intermediate shear rate and subsequently lower values. Extensional viscosity experiments were carried out at different strain rates of 0.001, 0.01, 0.1 and 1 s−1. Polypropylene nanoclay samples showed better strain-hardening behavior compared to that in neat polypropylene. Polypropylene nanocomposites blown films prepared at different nip-roll speeds were characterized for their tensile properties and film in-homogeneity.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
