Material Comparison
Product Info
Product Name
Brand Name
Usages
Properties
Certificates
POM 988P DUPONT USA
Delrin®
packing、Automotive components
High temperature resistan、wear resistant
UL
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Plastic Datasheets
Mechanical performance
Test Condition
Test Method
Unit
POM/DUPONT USA/988P
Ezo impact test
缺口-40℃
ASTM D-256
J/m
5
Ezo impact test
23℃
ASTM D-256
J/m
7
Ezo impact test
无缺口23℃
ASTM D-256
J/m
1
Elastic coefficient
23℃
ASTM D-638
Mpa
3
Load deformation amount
140kg/cm2,50℃
ASTM D-621
%
0
Shear strength
23℃
ASTM D-732
Mpa
6
Tensile impact 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
Flexural deformation strength
23℃
ASTM D-790
Mpa
9
Flexural fatigue endurance limit
50%RH，23℃，106周期
ASTM D-671
Mpa
3
Flexural coefficient
122℃
ASTM D-790
Mpa
7
Flexural coefficient
-55℃
ASTM D-790
Mpa
4
Flexural coefficient
70℃
ASTM D-790
Mpa
1
Flexural coefficient
100℃
ASTM D-790
Mpa
1
Flexural coefficient
23℃
ASTM D-790
Mpa
3
Tensile deformation at the rupture point
100℃
ASTM D-638
%
>
Tensile deformation at the rupture point
122℃
ASTM D-638
%
>
Tensile deformation at the rupture point
-55℃
ASTM D-638
%
1
Tensile deformation at the rupture point
23℃
ASTM D-638
%
2
Tensile deformation at the rupture point
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 performance
Test Condition
Test Method
Unit
POM/DUPONT USA/988P
Linear coefficient of thermal expansion
104-160℃
ASTM D-696
10-5m/m
1
Linear coefficient of thermal expansion
60-104℃
ASTM D-696
10-5m/m
1
Linear coefficient of thermal expansion
29-60℃
ASTM D-696
10-5m/m
1
Linear coefficient of 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
Anti arc
3.1mm
ASTM D-495
sec
2
Volume resistivity
23℃，0.2%含水量
ASTM D-257
ohm-cm
≥
Basic performance
Test Condition
Test Method
Unit
POM/DUPONT USA/988P
Water absorption rate
50%相对湿度
ASTM D-570
%
0
Water absorption rate
浸渍平衡点
ASTM D-570
%
0
Water absorption rate
24小时浸渍
ASTM D-570
%
0