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Global EPP POM C Acetal Copolymer

Category Polymer , Thermoplastic , Acetal (POM) , Acetal Copolymer, Unreinforced
Manufacturer Global EPP
Trade Name POM
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Global EPP POM C Acetal Copolymer.pdf
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Material Notes:
Polyacetals are highly crystalline thermoplastics, characterised by their high mechanical strength, rigidity and impact resistance. Acetal absorbs very little moisture, enabling the product to maintain constant physical properties in a variety of changing environments. POM exhibits excellent dimensional stability and is ideally suited to close tolerance mechanical parts.Key characteristics:High mechanical strength and rigidityHigh impact strength and creep resistanceExcellent dimensional stability and machinabilityLow moisture absorptionGood electrical insulating and dielectric propertiesNo centreline porosity in copolymer grades Suitable for food contactThe copolymer grade is the ideal combination of strength, stiffness and wear resistance. It absorbs very little moisture, is easily machinable and is genuinely porosity-free, making it the preferred grade for food contact and medical applications. The product exhibits an elevated resistance to hydrolysis, strong alkalis and thermal-oxidative degradation when compared to acetal homopolymer.
Physical Properties Metric English Comments
Density 1.41 g/cc
0.0509 lb/in³
Test Method A; ISO 1183:1987
Water Absorption 0.20 %

@Temperature 23.0 °C,
Time 86400 sec
0.20 %

@Temperature 73.4 °F,
Time 24.0 hour
Immersion; ISO 62:1999 (modified)
Moisture Absorption at Equilibrium 0.10 %
0.10 %
50% RH; ISO 62:1999
Water Absorption at Saturation 0.90 %
0.90 %
ISO 62:1999
Mechanical Properties Metric English Comments
Hardness, Shore D 83
83
ISO 868:2003
Tensile Strength at Break 70.0 MPa
10200 psi
Sample Type 1B, 50mm/min; ISO 527-1/2:1993
Elongation at Break >= 15 %
>= 15 %
Sample Type 1B, 50 mm/min; ISO 527-1/2:1993
Modulus of Elasticity 3.10 GPa
450 ksi
Sample Type 1B, 50 mm/min; ISO 527-1/2:1993
Flexural Strength 80.0 MPa
11600 psi
1.5 mm/min; ISO 178:2001
Flexural Modulus 2.60 GPa
377 ksi
1.5 mm/min; ISO 178:2001
Compressive Strength 110 MPa
16000 psi
Sample Type B, 5 mm/min; ISO 604:2002
Compressive Modulus 2.60 GPa
377 ksi
Sample Type A, 1 mm/min; ISO 604:2002
Izod Impact, Notched (ISO) 7.20 kJ/m²
3.43 ft-lb/in²
Sample Type A; ISO 180:2000
Coefficient of Friction, Dynamic 0.25

@Pressure 1.75 MPa
0.25

@Pressure 254 psi
31.4 m/min
Limiting Pressure Velocity 0.100 MPa-m/sec
2860 psi-ft/min
Thermal Properties Metric English Comments
CTE, linear 92.0 µm/m-°C

@Temperature 23.0 - 55.0 °C
51.1 µin/in-°F

@Temperature 73.4 - 131 °F
ISO 11359-2:1999
Thermal Conductivity 0.310 W/m-K
2.15 BTU-in/hr-ft²-°F
ISO 8301:1991
Melting Point 170 °C
338 °F
Maximum Service Temperature, Air 90.0 °C
194 °F
Continuous
140 °C
284 °F
Intermittent
Deflection Temperature at 0.46 MPa (66 psi) 160 °C
320 °F
ISO 75
Deflection Temperature at 1.8 MPa (264 psi) 110 °C
230 °F
ISO 75
Glass Transition Temp, Tg -60.0 °C
-76.0 °F
ISO 11359-2:1999
Flammability, UL94 HB
HB
IEC 60695-11-10:2003-08
Electrical Properties Metric English Comments
Volume Resistivity 1.00e+15 ohm-cm
1.00e+15 ohm-cm
IEC 60093:1980-01
Surface Resistance 1.00e+13 ohm
1.00e+13 ohm
IEC 60093:1980-01
Dielectric Constant 3.8

@Frequency 1.00e+6 Hz
3.8

@Frequency 1.00e+6 Hz
IEC 60250:1969-01
Dielectric Strength 16.5 kV/mm
419 kV/in
IEC 60243-1:1998-01
Dissipation Factor 0.0050

@Frequency 100 Hz
0.0050

@Frequency 100 Hz
IEC 60250:1969-01
Comparative Tracking Index 600 V
600 V
IEC 60112:2003-01
Descriptive Properties Value Comments
Color White, Black, and others
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