| |
2Y
|
2Y
|
2X
|
O2Y
|
|
LDPE
|
HDPE
|
VPE
|
|
|
Low density
Polyethylene
|
High density
Polyethylene
|
Cross Linked
Polyethylene
|
Foamed
Polyethylene
|
|
Density g/cm3
|
0.92-0.94
|
0.94-0.98
|
0.92
|
≈0.65
|
|
Breakdown Voltage KV/mm (20oC)
|
70
|
85
|
50
|
30
|
|
Specific Volume Resistivity Ω cm (20oC)
|
1017
|
1017
|
1012-1016
|
1017
|
|
Dielectric Constant 50 Hz (20oC)
|
2.3
|
2.3
|
4-6
|
≈1.55
|
|
Dielectric Loss Factor (tan δ)
|
2 x 10-4
|
3 x 10-4
|
2x 10-3
|
5 x 10-4
|
|
Working
Temperature
|
Permanent oC
|
-50 +70
|
-50 +00
|
-35 +90
|
-40 +70
|
|
Short Time oC
|
+100
|
+120
|
+100
|
+100
|
|
Melt Temperature +oC
|
105-110
|
130
|
-
|
105
|
|
Flame Resistance
|
Flammable
|
Flammable
|
Flammable
|
Flammable
|
|
Oxygen Index LOI (% O2)
|
≤22
|
≤22
|
≤22
|
18-30
|
|
Heating Value H0 MJ.kg-1
|
42-44
|
42-44
|
42-44
|
42-44
|
|
Thermal Conductivity W.K-1.m-1
|
0.3
|
0.4
|
0.3
|
0.25
|
|
Corrosive Gases In Case Of Fire
|
No
|
No
|
No
|
No
|
|
Radiation Resistance max Mrad
|
100
|
100
|
100
|
100
|
|
Tensile Strength N/mm2
|
10-20
|
20-30
|
12.5-20
|
8-12
|
|
Elongation At Break %
|
400-600
|
500-1000
|
300-400
|
350-450
|
|
Shore Hardness
|
43-50 (D)
|
60-63 (D)
|
40-45 (D)
|
-
|
|
Abrasion Resistance
|
Medium
|
Good
|
Medium
|
-
|
|
Water Absorption %
|
0.1
|
0.1
|
0.1
|
-
|
|
Halogen Free
|
Yes
|
Yes
|
Yes
|
Conditional
|
|
Weather Resistance
|
Medium
(Black: Good)
|
Medium
(Black: Good)
|
Good
|
-
|
|
Cold Resistance
|
Good
|
Good
|
Good
|
Good
|