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Ensinger PEI

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Borealis HJ320MO Polypropylene
Categories: Polymer; Thermoplastic; Polypropylene (PP)

Material Notes: HJ320MO is a polypropylene homopolymer intended for injection molding. Its very high melt flow makes it especially suitable for thin-wall packaging and products with long flow length. This grade is characterized by the unique combination of very high flow, excellent stiffness and excellent organoleptic properties. This grade is designed for high-speed injection molding and contains nucleating and antistatic additives. Components molded from this grade show good ejectability and combine excellent stiffness with good transparency and gloss, very good color, excellent organoleptic properties and good impact strength at ambient temperatures. Applications: thin wall containers, closures, and products with thicker wall sections requiring short cycle time.

Information provided by Borealis AG

Key Words: PP
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Physical PropertiesOriginal ValueComments
Density 0.910 g/ccISO 1183
Linear Mold Shrinkage 0.010 - 0.020 cm/cm
Melt Flow 55 g/10 min
@Load 2.16 kg,
Temperature 230 °C
ISO 1133
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell R 107ISO 2039-2
Tensile Strength, Yield 38.0 MPa50mm/min; ISO 527-2
Elongation at Yield 7.5 %50mm/min; ISO 527-2
Tensile Modulus 1800 MPa1mm/min; ISO 527-2
Charpy Impact, Notched 2.00 kJ/m²
@Temperature 23.0 °C
ISO 179/1eA
 
Thermal PropertiesOriginal ValueComments
Deflection Temperature at 0.46 MPa (66 psi) 115 °CISO 75-2
 
Processing PropertiesOriginal ValueComments
Melt Temperature 210 - 250 °C
Mold Temperature 30.0 - 40.0 °C
Hold Pressure 20.0 - 50.0 MPa
 
Descriptive Properties
Injection Velocityhigh

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PBOREA498 / 108757

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