Capillary rheometerApplication:

The instrument for rheological properties is generally called a rheometer, sometimes also called a viscometer. Among various instruments for measuring and studying the rheological properties of plastic melts, capillary rheometer is a commonly used and suitable testing instrument, which has multiple functions and a wide range of shear rate capacity. The capillary rheometer can measure the relationship between shear stress and shear rate of plastic melt in the capillary tube, and can also study the elasticity and unstable flow (including melt fracture) of the melt by changing the aspect ratio of the capillary tube under constant stress or based on the diameter and appearance of the extruded material. Thus measuring its processing behavior as a basis for selecting composite formulations, seeking optimal molding process conditions, and controlling product quality; Or provide basic data for auxiliary molding molds and plastic machinery design.

Capillary rheometer can measure performance indicators such as softening point, melting point, flow point, viscosity, viscous flow activation energy, and curing temperature of thermosetting materials of polymers. These data play an important role in studying the rheological properties of polymers.

If you are looking for a precise melt index analyzer, you may consider using a capillary rheometer. The typical melt index meter only measures the shear rate/A point on the viscosity curve can only evaluate the flowability or average molecular weight of a material,ButThe capillary rheometer can measure the changes in material viscosity with temperature and pressure.tryDuring the inspection, the temperature remains constant, and the pistonhow manyBy moving at different rates, we can understand the relationship between viscosity, shear rate, and shear force,