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Ensinger PEI

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MTI ThermoStran® TPU-40G Long Glass Fiber Compound
Categories: Polymer; Thermoplastic; Polyurethane, TP; Thermoplastic Polyurethane (TPUR), Glass Fiber Reinforced

Material Notes: ThermoStran® is custom designed long fiber thermoplastic compound (LFC) engineered to meet specific end use requirements. Continuous fibers are pultruded to yield pellets with fibers equivalent to the pellet length. Fiber / pellet length = 0.5 inches. Properties reported are dry as molded.

Processing information:

Mold Temperature: Higher mold temperatures are recommended for smoother surface appearance.
Nozzle: Shortest length possible and 0.25 inch diameter or larger is recommended.
Gates: Gates should be as large as possible and located to eliminate knit line and advantageously align fiber.
Runners: Full round runners with 0.25 inch diameter and no sharp corners.
Construction Material: Tool steels can be heat treated and polished to increase hardness and wear resistance. A-2 and D-2 steels can be hardened to Rockwell 60 C scale for longer life.
Plating: Electroless nickel plating may offer additional wear protection.

Information provided by MTI Thermoplastic Composites, Division of Montsinger Technologies, Inc.

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.52 g/cc
Filler Content 40 %Long Glass Fiber
 
Mechanical PropertiesOriginal ValueComments
Tensile Strength, Ultimate 27000 psi
Tensile Modulus 1.70e+6 psi
Flexural Strength 44000 psi
Flexural Modulus 1500 ksi
Izod Impact, Notched 8.00 ft-lb/in
 
Thermal PropertiesOriginal ValueComments
Deflection Temperature at 1.8 MPa (264 psi) 210 °F
 
Processing PropertiesOriginal ValueComments
Rear Barrel Temperature 420 °F
Middle Barrel Temperature 460 °F
Front Barrel Temperature 480 °F
Nozzle Temperature 480 °F
Melt Temperature 460 - 500 °F
Mold Temperature 150 °F
Drying Temperature 180 °F
Dry Time 4 hour
Dew Point -20.0 °F
Injection Pressure 12000 psi
Screw Speed 50 - 75 rpm
 
Descriptive Properties
Nozzle ID0.25 Inches
Screw Design20:1 L/D

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