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Mitsui TPX® DX820 Methylpentene Copolymer

Category Polymer , Thermoplastic , Polymethylpentene (PMP)
Manufacturer Mitsui Chemicals America
Trade Name TPX®
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Mitsui TPX® DX820 Methylpentene Copolymer.pdf
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Material Notes:
TPX® is a 4-methylpentene-1 based polyolefin with a unique combination of transparency, heat and chemical resistant qualities. TPX is used in a wide variety of applications, including: medical equipment, laboratory ware, small appliances, ovenware, baking cartons, release paper, wire and cable coating, and a number of industrial uses. TPX is manufactured and marketed solely by Mitsui Chemicals, Inc.Applications: Injection Molded Items: Blood test cellsMedical instrumentsLaboratory wareCoffee maker partsCosmetic containersExtrusion Molded Items: Sight glass (pipes, sheets)Baking cartons (food containers)Release paperWire and cable coatingFilmsMolding Method: Paper coatingInformation provided by Mitsui.
Physical Properties Metric English Comments
Density 0.833 g/cc
0.0301 lb/in³
ASTM D1505
Water Absorption 0.010 %
0.010 %
24 hours; ASTM D570
Melt Flow 180 g/10 min

@Load 5.00 kg,
Temperature 260 °C
180 g/10 min

@Load 11.0 lb,
Temperature 500 °F
ASTM D1238
Mechanical Properties Metric English Comments
Hardness, Rockwell R 80
80
ASTM D785
Tensile Strength at Break 17.2 MPa
2490 psi
5mm/min; ASTM D638
Tensile Strength, Yield 22.6 MPa
3280 psi
5mm/min; ASTM D638
Elongation at Break 20 %
20 %
MPC method, 5mm/min
Modulus of Elasticity 1.28 GPa
186 ksi
Tangent; ASTM D790
Flexural Strength 35.3 MPa
5120 psi
2mm/min; ASTM D790
Flexural Stiffness 896 MPa
130000 psi
Olsen Stiffness; ASTM D747
Thermal Properties Metric English Comments
CTE, linear 117 µm/m-°C

@Temperature 20.0 °C
65.0 µin/in-°F

@Temperature 68.0 °F
ASTM D696
Specific Heat Capacity 1.97 J/g-°C
0.471 BTU/lb-°F
ASTM C351
Thermal Conductivity 0.167 W/m-K
1.16 BTU-in/hr-ft²-°F
BS 874A
Melting Point 240 °C
464 °F
MPC Method
Vicat Softening Point 173 °C
343 °F
ASTM D1525
Optical Properties Metric English Comments
Transmission, Visible 80 %
80 %
Mfr. indicates clear but does not quantify
Electrical Properties Metric English Comments
Volume Resistivity >= 1.00e+16 ohm-cm
>= 1.00e+16 ohm-cm
ASTM D257
Dielectric Constant 2.12

@Frequency 100 - 1.00e+6 Hz
2.12

@Frequency 100 - 1.00e+6 Hz
ASTM D150
Dielectric Strength 65.0 kV/mm
1650 kV/in
ASTM D149
Descriptive Properties Value Comments
Appearance Colorless transparent
Rate of Burning 2.54 cm/min
ASTM D635
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