IROGRAN® A 85 P 4441

Polyether-based Thermoplastic Polyurethane

Product Description:
IROGRAN® A 85 P 4441 is a polyether-based Thermoplastic Polyurethane (TPU) for extrusion and injection molding applications. Key features are excellent hydrolysis and microbial resistance, excellent wear performance, robust processing and matte surface.
MAIN APPLICATIONS:
Thick wall technical parts, thin wall extrusion profiles, thick wall extrusion profiles, cable jacketing and film and sheet.

Details

At Jan.2016: US / EAIME / APAC MTS / MTS / MTS finished 08.10.2016
Properties Key NORM Value Unit
Hardness (after 3 sec.) M ASTM D 2240 87 Shore A
Hardness (after 3 sec.) M ASTM D 2240 39 Shore D
Density M ASTM D 792 1.11 g/cm³
Tensile strength E ASTM D 412 6960 psi
Elongation @ break E ASTM D 412 580 %
Tensile stress @ 100% elongation E ASTM D 412 980 psi
Tensile stress @ 300% elongation E ASTM D 412 1560 psi
Tear strength E ASTM D 624 480 pli
Flexural modulus @ 23°C M ASTM D 790 7580 psi
Flexural modulus @ -29°C M ASTM D 790 15270 psi
Abrasion M ISO 4649 48 mm³
Bayshore rebound resilience M ASTM D 2632 44 %
Compression set at 22h @ 23°C M ASTM D 395 28 %
Compression set at 22h @ 70°C M ASTM D 395 83 %
Mold shrinkage M ASTM D 955 0.5 %
Softening range low E Huntsman TMA 155 °C
Softening range high E Huntsman TMA 169 °C
Glass transition temperature (DSC) E ASTM D 3418 -41 °C
Vicat softening point VST/A120 M ASTM D 1525 83 °C
  • M = Injection molded parts to meet DIN & ASTM requirements. Parts at room temperature aged prior to testing.

  • E = Extruded film cut to ASTM requirements. Parts at room temperature aged prior to testing.

Processing Parameters

Melt Volume Rate [190°C / 21,6kg] ISO 1133-1  =  65 cm³/10min

Processing Parameter:   Extrusion
Temperature Profile °C
Feed Zone: 25 - 40
Barrel: 175 - 185
Die Head: 185 - 195
Nozzle: 170 - 200
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