Rheological Behavior and Extrudate Swell of Polypropylene/Silicon Carbide Composites

Apaipan Rattanapan; Nuttaphong Sornsuwit; Rapeephun Dangtungee

doi:10.4028/www.scientific.net/AMR.747.595

Paper Titles

Oxygen Storage Capacity of Ce_xZr_1-xO₂ (0.4≤x≤0.8) Solid Solution Using Thermogravimetric Analysis
p.579

Sintering and Mechanical Properties of Injection Molded Low Cost Ti Alloys
p.583

Fabrication of High Resolution Microstructures Using Micro Hot Embossing with a Precision Rapid Tooling
p.587

Space-Charge-Limited Bipolar Currents at High Fields in Polymer/C₆₀ Diodes: A Simple Model Description
p.591

Rheological Behavior and Extrudate Swell of Polypropylene/Silicon Carbide Composites
p.595

Enhancement on Stability of Nanosized Titanium Dioxide in Silicone Suspension Using Diblock Copolymer: Influence of Dispersant Structure
p.599

Ba_0.9 A_0.1TiO₃ (A = Al and Mg) Powders Synthesized by Solid State Reaction Technique and their Dielectric Properties
p.603

Natural Rubber-Toughened Polystyrene: Effects of Mixing Procedure and Maleic Anhydride Content on Impact Property and Phase Morphology
p.607

The Sequential Analysis of Film Deformation Behavior during Successive Biaxial Stretching Process
p.611

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 747Rheological Behavior and Extrudate Swell of...

Rheological Behavior and Extrudate Swell of Polypropylene/Silicon Carbide Composites

Abstract:

The rheological behavior and extrudate swell of polypropylene (PP)/silicon carbide (SiC) composites were investigated. Polypropylene-grafted-maleic anhydride (PP-g-MA) was introduced into blending system as a compatibilizer. The effect of silicon carbide loading and surface modification on the rheological behavior of PP/SiC composites were studied using a capillary rheometer and SEM analysis. The results showed that the composites exhibit pseudoplastic behavior as the shear stress and extrudate swell increased with increasing shear rate, while shear viscosity decreased. Moreover, an increasing elongation rate leads to reduce elongation viscosity. The addition of PP-g-MA in PP/SiC composites has significantly decreased the apparent shear stress, apparent shear viscosity and percentage of extrudate swell.