Plastics Group Polifil® T-20 20% Talc-Reinforced Polypropylene

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Plastics Group Polifil® T-20 20% Talc-Reinforced Polypropylene
Categories:	Polymer; Thermoplastic; Polypropylene (PP); Polypropylene with 20% Talc Filler
Material Notes:	Polifil® T series compounds are homopolymer polypropylene resins reinforced with asbestos-free talc. They possess high flex modulus, high deflection temperature, good chemical resistance and colorability, low shrinkage and yield maximum stiffness combined with characteristic impact. Applications: Automotive (underhood) applications Major appliances Electrical goods Housewares Standard processing techniques are applicable. Information provided by The Plastics Group.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.05 g/cc	1.05 g/cc	ASTM D792
Density	1.05 g/cc	0.0379 lb/in³	ASTM D792
Filler Content	20 %	20 %	ASTM D2584
	20.0 %	20.0 %	TPG WI
Water Absorption	0.000 % @Time 86400 sec	0.000 % @Time 24.0 hour	ASTM D570
Linear Mold Shrinkage	0.010 cm/cm @Thickness 1.59 mm	0.010 in/in @Thickness 0.0625 in	ASTM D955
	0.0100 cm/cm @Thickness 3.17 mm	0.0100 in/in @Thickness 0.125 in	ASTM D955
Melt Flow	8.0 - 12 g/10 min	8.0 - 12 g/10 min	230/2.16; May be specified; ASTM D1238
	8.00 - 12.0 g/10 min @Load 2.16 kg, Temperature 230 °C	8.00 - 12.0 g/10 min @Load 4.76 lb, Temperature 446 °F	ASTM D1238

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell R	97	97	ASTM D785
Hardness, Shore D	74.0	74.0	ASTM D1415
Tensile Strength at Break	31.0 MPa	4500 psi	ASTM D638
Tensile Strength	33.8 MPa	4900 psi	ASTM D638
Elongation at Break	17.0 %	17.0 %	ASTM D638
Elongation at Yield	6.00 %	6.00 %	ASTM D638
Tensile Modulus	1.93 GPa	280 ksi	ASTM D638
Flexural Strength	50.3 MPa	7300 psi	ASTM D790
Flexural Modulus	2.07 GPa	300 ksi	Tangent; ASTM D790
	2.07 GPa	300 ksi	tangent; ASTM D790
Izod Impact, Notched	0.267 J/cm	0.500 ft-lb/in	At 73°F; ASTM D256
	0.294 J/cm	0.550 ft-lb/in	ASTM D256
Izod Impact, Unnotched	3.20 J/cm	6.00 ft-lb/in	At 73°F; ASTM D256
Gardner Impact	0.565 J	0.417 ft-lb	ASTM D3029
	0.904 J @Thickness 12.7 mm	0.667 ft-lb @Thickness 0.500 in	tup; ASTM D5420

Thermal Properties	Metric	English	Comments
Deflection Temperature at 0.46 MPa (66 psi)	124 °C	255 °F	ASTM D648
	127 °C	260 °F	ASTM D648
Deflection Temperature at 1.8 MPa (264 psi)	62.8 °C	145 °F	ASTM D648
Flammability, UL94	HB	HB

Processing Properties	Metric	English	Comments
Rear Barrel Temperature	199 - 210 °C	390 - 410 °F
Middle Barrel Temperature	210 - 221 °C	410 - 430 °F
Front Barrel Temperature	221 - 232 °C	430 - 450 °F
Nozzle Temperature	227 - 232 °C	440 - 450 °F
Melt Temperature	204 - 260 °C	400 - 500 °F
Mold Temperature	10.0 - 26.7 °C	50.0 - 80.0 °F
Drying Temperature	180 - 220 °C @Time 3600 - 7200 sec	356 - 428 °F @Time 1.00 - 2.00 hour
Back Pressure	0.345 - 0.689 MPa	50.0 - 100 psi
Screw Speed	50.0 - 100 rpm	50.0 - 100 rpm

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PPOLI001 / 56905

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