Extrusion capillary rheometer is a device used to measure shear stress rate under high stress. It can measure the fluidity and curing speed of thermosetting materials, draw stress-strain curves and plasticization curves of thermoplastic materials, and measure the temperature of softening point, melting point, and flow point. It can also measure the viscosity and viscosity-flow activation of polymer melts and study the process conditions of melt spinning.

It is used to measure the relationship between shear stress and shear rate of polymer melt in capillary, directly observe the appearance of extrudate, study the elasticity and instability of melt by changing aspect ratio, and measure the state change of polymer. The study of polymer rheological properties can not only provide the best process conditions for processing and data for plastic machinery design parameters, but also obtain useful data on structure and molecular parameters in material selection and raw material modification. It has more simulated processing modes and a wider shear rate range.

Product Features

●Select internationally renowned brand (GEFRAN) melt pressure sensor, high test data accuracy.

●Select capillary die to test material viscosity curve.

●Select capillary die with different aspect ratios to test material real viscosity curve.

●High-performance servo motor, wide range of speed regulation, more stable speed.

●Based on self-developed special software with powerful functions and good human-computer interaction.

●Humanized structure design, more convenient operation.

●Optional narrow slit die to test the rheological properties of materials under special flow fields. 

●Optional laser diameter gauge to record the extrudate diameter in real time and study the extrusion swell behavior of the material.

Application Range

●Apparent/real viscosity curve test

●Extrusion expansion behavior measurement and analysis.

●Research and development of new products and new formulas.

●Optimization of production process parameters.