Tri-Component Melt Extrusion Laboratory

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The Wilson College of Textiles houses a state-of-the-art tri-component melt-spinning line with capability to extrude three distinct polymer components simultaneously.

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Plates for the spin-pack can be made to order for your custom filament design including: islands-in-the-sea, segmented pie, sheath-core-core, etc. Specifications are listed below.

Tri-component Melt Extruder (dryers not yet assembled)

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SIZE AND PERFORMANCE TABLE PER EXTRUDER

Extruder A

Extruder B

Extruder C

Screw Diameter[mm (inch)]

18 (¾)

18 (¾)

25 (1)

Metering Pump Capacity [cc/rev]

0.6

0.6

1.8

Pump Throughput [kg/hr (lb/hr)]

3 (6.6), PET

3 (6.6), PET

8 (17.6), PET

BASIC SPECIFICATIONS

  • Fiber extrusion up to 350 °C
  • Screw length/diameter ratio: 30:1 L/D
  • Three melt pumps, thermally isolated
  • Laminar quench air flow rate from 0 to 2.54 m/sec (500 ft/min) at 12 °C
  • Fume exhaust
  • Metered spin finish
  • Godet speed range from 0 to 2,000 m/min
  • Godet temperature range from ambient to 200 °C
  • Leesona tension controlled winder
  • Complete modern instrumentation and controls with data logging

Spinneret and Tri-component Filaments Entering the Laminar Flow Quench

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Cross-sections of Tri-component Filaments from Various Extruder Flow Rates

PP(sheath)–PP(core)–PP(core)

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PP(sheath)-PE(core)-PP(core)

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This state-of-the-art tri-component melt extruder is available for research and product development purposes. Talk to us about scheduling a trial.

For more information or to schedule a trial, please contact:

Dr. Jon P. Rust
Box 8301, NC State University
Raleigh, NC  27695-8301
jrust@ncsu.edu
919.515.6564

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