Bulk Compressibility of Solid Pellets
D-030

Description

The barrel of a capillary rheometer is loaded with a pre-weighed sample of the material in pellet form and allowed to reach the specified temperature. This temperature must be below the melt temperature to ensure the material is in solid form. The piston is brought down onto the sample and a specified load is applied; the displacement of the piston is recorded as a function of time. By knowing the diameter of cylinder and the height of the piston, the density versus time curve is determined. Two replicates are performed.

Standards

• Unknown ComProp

Data

Bulk Modulus. This data appears in Matereality as Compressive Properties.

Replicates

Number of times this test is repeated: 2

Samples

0.5 kg of pellets

Application

Data are used to determine the compression ratio in extrusion applications. It is also used in extruder screw simulations.

Add to Cart