Overview of materials for Polystyrene, Flame Retardant

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Overview of materials for Polystyrene, Flame Retardant
Categories:	Polymer; Thermoplastic; Polystyrene (PS); Polystyrene, Flame Retardant
Material Notes:	This property data is a summary of similar materials in the MatWeb database for the category "Polystyrene, Flame Retardant". Each property range of values reported is minimum and maximum values of appropriate MatWeb entries. The comments report the average value, and number of data points used to calculate the average. The values are not necessarily typical of any specific grade, especially less common values and those that can be most affected by additives or processing methods.
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Physical Properties	Original Value	Comments

Density	0.950 - 1.20 g/cc	Average value: 1.13 g/cc Grade Count:118
Water Absorption	0.000 - 0.300 %	Average value: 0.0824 % Grade Count:37
Moisture Absorption at Equilibrium	0.0400 - 0.300 %	Average value: 0.123 % Grade Count:6
Particle Size	90.0 - 1600 µm	Average value: 1070 µm Grade Count:4
Maximum Moisture Content	0.0100	Average value: 0.0100 Grade Count:5
	0.200 - 0.200 @Temperature 120 - 120 °C	Average value: 0.200 Grade Count:2
	0.200 - 0.200 @Time 299 - 299 sec	Average value: 0.200 Grade Count:2
Linear Mold Shrinkage	0.00200 - 0.00800 cm/cm	Average value: 0.00512 cm/cm Grade Count:89
Linear Mold Shrinkage, Transverse	0.00200 - 0.00600 cm/cm	Average value: 0.00350 cm/cm Grade Count:3
Melt Flow	2.50 - 25.0 g/10 min	Average value: 9.61 g/10 min Grade Count:112
Spiral Flow	34.0 - 56.0 cm @Temperature 220 - 260 °C	Average value: 45.8 cm Grade Count:5

Mechanical Properties	Original Value	Comments
Hardness, Rockwell L	45.0 - 94.0	Average value: 61.1 Grade Count:8
Hardness, Rockwell M	55.0 - 65.0	Average value: 59.2 Grade Count:6
Hardness, Rockwell R	83.0 - 110	Average value: 94.7 Grade Count:18
Tensile Strength, Ultimate	12.4 - 48.3 MPa	Average value: 26.1 MPa Grade Count:63
Tensile Strength, Yield	14.0 - 55.0 MPa	Average value: 26.6 MPa Grade Count:79
Elongation at Break	1.00 - 80.0 %	Average value: 40.7 % Grade Count:109
Elongation at Yield	1.00 - 5.00 %	Average value: 2.69 % Grade Count:16
Modulus of Elasticity	1.38 - 3.45 GPa	Average value: 2.12 GPa Grade Count:31
Flexural Yield Strength	25.5 - 82.7 MPa	Average value: 39.9 MPa Grade Count:72
Flexural Modulus	1.40 - 17.7 GPa	Average value: 2.28 GPa Grade Count:103
Izod Impact, Notched	0.107 - 1.71 J/cm	Average value: 1.01 J/cm Grade Count:81
	0.600 - 0.800 J/cm @Temperature 0.000 - 0.000 °C	Average value: 0.468 J/cm Grade Count:4
	0.392266 - 0.490332 J/cm @Temperature -30.0 - -30.0 °C	Average value: 0.468 J/cm Grade Count:5
	0.392266 - 0.490332 J/cm @Thickness 3.20 - 6.40 mm	Average value: 0.468 J/cm Grade Count:5
Izod Impact, Notched (ISO)	5.00 - 11.0 kJ/m²	Average value: 7.04 kJ/m² Grade Count:24
Charpy Impact Unnotched	2.00 - 10.0 J/cm²	Average value: 6.11 J/cm² Grade Count:13
	4.00 - 8.00 J/cm² @Temperature -30.0 - -30.0 °C	Average value: 5.71 J/cm² Grade Count:7
Charpy Impact, Notched	0.200 - 1.20 J/cm²	Average value: 0.682 J/cm² Grade Count:16
Tensile Creep Modulus, 1 hour	1600 - 2200 MPa	Average value: 1930 MPa Grade Count:3
Tensile Creep Modulus, 1000 hours	1200 - 1600 MPa	Average value: 1400 MPa Grade Count:4

Electrical Properties	Original Value	Comments
Electrical Resistivity	1.00e+12 - 1.00e+16 ohm-cm	Average value: 7.90e+15 ohm-cm Grade Count:39
Surface Resistance	1.00e+12 - 1.00e+15 ohm	Average value: 1.04e+14 ohm Grade Count:22
Dielectric Constant	2.00 - 3.00	Average value: 2.42 Grade Count:17
Dielectric Strength	17.7 - 160 kV/mm	Average value: 69.6 kV/mm Grade Count:15
Dissipation Factor	0.000400 - 0.00500	Average value: 0.00110 Grade Count:15
Arc Resistance	60.0 - 180 sec	Average value: 120 sec Grade Count:5
Comparative Tracking Index	225 - 600 V	Average value: 363 V Grade Count:18
Hot Wire Ignition, HWI	7.00 - 30.0 sec	Average value: 21.1 sec Grade Count:5
High Amp Arc Ignition, HAI	60.0 - 120 arcs	Average value: 116 arcs Grade Count:5
High Voltage Arc-Tracking Rate, HVTR	10.0 - 25.4 mm/min	Average value: 17.7 mm/min Grade Count:5

Thermal Properties	Original Value	Comments
CTE, linear	50.0 - 100 µm/m-°C	Average value: 80.4 µm/m-°C Grade Count:14
Hot Ball Pressure Test	75.0 - 85.0 °C	Average value: 80.3 °C Grade Count:13
Deflection Temperature at 0.46 MPa (66 psi)	70.0 - 96.1 °C	Average value: 84.6 °C Grade Count:20
Deflection Temperature at 1.8 MPa (264 psi)	60.0 - 91.0 °C	Average value: 79.0 °C Grade Count:80
Vicat Softening Point	80.0 - 219 °C	Average value: 94.2 °C Grade Count:93
Heat Distortion Temperature	78.9 - 94.0 °C	Average value: 84.2 °C Grade Count:6
UL RTI, Electrical	50.0 °C	Average value: 50.0 °C Grade Count:5
UL RTI, Mechanical with Impact	50.0 °C	Average value: 50.0 °C Grade Count:5
UL RTI, Mechanical without Impact	50.0 °C	Average value: 50.0 °C Grade Count:5
Flammability, UL94	V-2 - 5VA	Grade Count:110
Oxygen Index	26.0 %	Average value: 26.0 % Grade Count:6
Glow Wire Test	650 - 960 °C	Average value: 879 °C Grade Count:21

Processing Properties	Original Value	Comments
Processing Temperature	160 - 250 °C	Average value: 243 °C Grade Count:23
Nozzle Temperature	200 - 232 °C	Average value: 213 °C Grade Count:9
Melt Temperature	160 - 300 °C	Average value: 217 °C Grade Count:61
Mold Temperature	10.0 - 80.0 °C	Average value: 46.2 °C Grade Count:53
Drying Temperature	60.0 - 90.0 °C	Average value: 70.6 °C Grade Count:49
Injection Pressure	60.0 - 103 MPa	Average value: 82.1 MPa Grade Count:4

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 go back to viewing the property data in MatWeb's normal format.

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