Melt Flow Index: Measuring Polymer Flow Characteristics

The Melt Flow Index (MFI) is a crucial parameter for evaluating the flowability of thermoplastic materials under specific conditions. It measures the rate at which molten plastic extrudes through a standardized die, providing insights into viscosity and processability. Industries such as packaging, automotive, and medical manufacturing rely on MFI testing to ensure material consistency and quality. A higher MFI indicates lower viscosity and easier processing, while a lower MFI suggests higher molecular weight and strength. Understanding MFI helps manufacturers select suitable polymers for injection molding, extrusion, and other applications, ensuring optimal performance and product durability.