Elongation-Tester-D-MELT

D-Melt

The D-Melt enables the determination of melt index and elongation viscosity in one measurement. This combination is particularly interesting as a quick test in quality control (QC) for processing process of polymers.

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The melt index measurement is an internationally standardized procedure, which is used to determine the flowability of polymer melts. The sample is plasticized in a heated test barrel and afterwards extruded through a capillary with a test piston and a defined weight on top. Meanwhile the MVR-value (melt volume-flow rate) is calculated form the feed rate of the test piston. With the melt density it can be converted to the MFR-value (melt mass-flow rate) in g/10min.
The D-MELT makes it possible to also determine the MElt Elongation value (ME-value), a measure of the melt elasticity. Both measurements, ME and MVR, are done with just one filling of the test barrel. The ME-measurement is completed before the start of the standard-confirming MVR-measurement.
The ME-value is the force in the extruded strand at a certain draw-down ratio. This new combined method realizes the opportunity to determine a significant characteristic value of the extrusion behavior of your product in a quick, easy and cost-effective way. The D-MELT system and the ME-value are therefore ideal for continuous process monitoring or the inspection of incoming goods.

Highlights
  • Determination of melt index and melt elasticity in one measurement
  • Speed range from 0 bis 44,8 m/min (D-Melt Haul-Off)
  • Characteristic single value as result of the Haul-Off measurement
  • Forde and velocity are graphically displayed during measurement
  • Force and velocity during measurementcan also be recorded
  • Uncomplicated and predefined measuring principle
  • free definable velocity profile
  • Operation and data recording via PC software D-MELT Console (Optional MFRHost and Rheotens E)
  • Precise, high-resolution force sensor

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