Material Comparison
Product Info
Product Name
Brand Name
Usages
Properties
Certificates
POM 988P DUPONT USA
Delrin®
Electrical tools、Automotive components
High temperature resistan、wear resistant
UL
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Plastic Datasheets
Mechanical Properties
Test Condition
Test Method
Unit
POM/DUPONT USA/988P
Notched Izod Impact Strength
缺口-40℃
ASTM D-256
J/m
5
Notched Izod Impact Strength
23℃
ASTM D-256
J/m
7
Notched Izod Impact Strength
无缺口23℃
ASTM D-256
J/m
1
Flexural Strength
23℃
ASTM D-638
Mpa
3
Heat Deflection Temperature
140kg/cm2,50℃
ASTM D-621
%
0
Tensile Strength
23℃
ASTM D-732
Mpa
6
Tensile Strength
23℃
ASTM D-1822
kJ/m²
2
Tensile Strength
-55℃
ASTM D-638
Mpa
1
Tensile Strength
100℃
ASTM D-638
Mpa
3
Tensile Strength
23℃
ASTM D-638
Mpa
6
Tensile Strength
70℃
ASTM D-638
Mpa
4
Tensile Strength
122℃
ASTM D-638
Mpa
2
Heat Deflection Temperature
23℃
ASTM D-790
Mpa
9
50%RH，23℃，106周期
ASTM D-671
Mpa
3
Tensile Strength
122℃
ASTM D-790
Mpa
7
Tensile Strength
-55℃
ASTM D-790
Mpa
4
Tensile Strength
70℃
ASTM D-790
Mpa
1
Tensile Strength
100℃
ASTM D-790
Mpa
1
Tensile Strength
23℃
ASTM D-790
Mpa
3
Tensile Strain (Break)
100℃
ASTM D-638
%
>
Tensile Strain (Break)
122℃
ASTM D-638
%
>
Tensile Strain (Break)
-55℃
ASTM D-638
%
1
Tensile Strain (Break)
23℃
ASTM D-638
%
2
Tensile Strain (Break)
70℃
ASTM D-638
%
1
Compressive Stress
23℃，10%变形
ASTM D-695
Mpa
1
Compressive Stress
23℃，1%变形
ASTM D-695
Mpa
3
Thermal Properties
Test Condition
Test Method
Unit
POM/DUPONT USA/988P
Coefficient of Linear Thermal Expansion
104-160℃
ASTM D-696
10-5m/m
1
Coefficient of Linear Thermal Expansion
60-104℃
ASTM D-696
10-5m/m
1
Coefficient of Linear Thermal Expansion
29-60℃
ASTM D-696
10-5m/m
1
Coefficient of Linear Thermal Expansion
-40-29
ASTM D-696
10-5m/m
1
Electrical performance
Test Condition
Test Method
Unit
POM/DUPONT USA/988P
Dielectric Constant
50%RH，23℃，102-106Hz
ASTM D-150
ohm-cm
3
Dielectric Strength
2.3mm
ASTM D-149
KV/mm
1
Arc Resistance
3.1mm
ASTM D-495
sec
2
Volume Resistivity
23℃，0.2%含水量
ASTM D-257
ohm-cm
≥
Physical
Test Condition
Test Method
Unit
POM/DUPONT USA/988P
Moisture Absorption
50%相对湿度
ASTM D-570
%
0
Moisture Absorption
浸渍平衡点
ASTM D-570
%
0
Moisture Absorption
24小时浸渍
ASTM D-570
%
0