Phillips Sumika Marlex® CHN-200 Thermoplastic Polyolefin

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Phillips Sumika Marlex® CHN-200 Thermoplastic Polyolefin (discontinued **)
Categories:	Polymer; Thermoplastic; Polyolefin
Material Notes:	Thermoplastic Polyolefin, High Stiffness, Talc-Filled Applications: Automotive Interiors Conditioning after Molding: 48 hr at 23°C Nominal Shrinkage: 0.9-1.1% Drying conditions Temperature: 80-100°C Time: 2 hours minimum, 4 hours maximum Device: Desiccant Dryer Moisture content: 0.1 wt% max. Molding Temperatures Rear Temperature: 145-200°C Middle Temperature: 210-235°C Front and Nozzle Temps: 210-235°C Stock Temperature: 191-246°C Mold Temperature: 23-50°C Processing conditions Suggested shot size: 50-70% First stage injection pressure: Maximize Screw Speed: 30-60% Packing pressure: Minimize Back Pressure: 50-150 psi Other molding considerations: Melt temperature above 260°C may cause resin degradation and changes to resin properties. To improve dispersion of color concentrates use a screw with a mixing zone or mixing nozzle. Phillips Sumika Polypropylene Company has been shut down, as announced in 2011.
Key Words:	Information Provided by Chevron Phillips Chemical
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Physical Properties	Original Value	Comments

Density	1.04 g/cc	ISO 1183
Linear Mold Shrinkage	0.0090 - 0.011 cm/cm
Melt Flow	22 g/10 min @Temperature 230 °C	ISO 1133

Mechanical Properties	Original Value	Comments
Hardness, Rockwell R	93	ISO 2039
Tensile Strength, Yield	25.0 MPa	50 mm/min; ISO 527
Flexural Modulus	2550 MPa	2.0 mm/min; ISO 178
Izod Impact, Notched (ISO)	5.50 kJ/m²	ISO 180
	2.50 kJ/m² @Temperature -40.0 °C	ISO 180

Thermal Properties	Original Value	Comments
Deflection Temperature at 0.46 MPa (66 psi)	123 °C	ISO 75
Deflection Temperature at 1.8 MPa (264 psi)	65.0 °C	ISO 75

**
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