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Help CenterCeramic Fire-retardant Polyolefin Insulation Material
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Ceramic fire-retardant polyolefin insulation material
Properties for Ceramic fire-retardant polyolefin insulation material
Typical |
Typical |
Typical |
|||
Density |
g/cm3 |
--- |
1.54 |
1.54 |
1.55 |
Hardness |
Shore A/D |
--- |
92/40 |
94/42 |
94/40 |
Tensile Strength |
≥MPa |
6 |
8.65 |
7.5 |
8.65 |
Elongation at break |
≥% |
100 |
152 |
162 |
110 |
Thermal Aging |
℃xh |
|
100*240 |
||
Tensile Strength |
≥MPa |
6 |
9.5 |
7.3 |
--- |
TS Change rate |
≤% |
±30 |
+10 |
-3 |
--- |
Elongation at break |
≥% |
70 |
138 |
145 |
--- |
EB Change rate |
≤% |
±30 |
-10 |
-11 |
--- |
Volume Resistivity,at |
≥Ω·m |
1.0*1010 |
3.8*1014 |
3.7*1013 |
3.3*1013 |
Dielectric Strength |
≥Mv/m |
18 |
28 |
27 |
24 |
|
Impact Brittleness Temperature |
≤ |
|
-45 |
-45 |
-45 |
15/30 |
0/30 |
0/30 |
0/30 |
||
Smoke Density |
|
|
GB/T 8323 |
||
Flaming |
≤ |
100 |
60 |
55 |
44 |
Non flaming |
≤ |
250 |
144 |
160 |
108 |
Acidity of gases evolve |
(PH)≥ |
4.3 |
6.5 |
6.2 |
6.3 |
Conductivity of gases evolved |
≤μs/mm |
10 |
1.0 |
0.5 |
0.5 |
Content of halogen acids |
≤mg/g |
5 |
0 |
0 |
0 |
Toxicity |
≤ |
2.5 |
0.3 |
0.2 |
0.6 |
environmental stress crack resistance |
≥96h |
pass |
pass |
pass |
pass |
thermal stress crack resistance |
≥96h |
pass |
pass |
pass |
pass |
Burn Properties | |||||
bending strength |
≥MPa |
--- |
5.9 |
10.5 |
9.2 |
Volume Resistivity |
≥Ω·m |
--- |
≥2.0*1018 |
≥2.0*1018 |
≥2.0*1018 |
Dielectric Strength |
≥Mv/m |
--- |
≥40 |
≥40 |
≥40 |
ceramic retention |
≥% |
--- |
80.2 |
84 |
85 |
Description for Ceramic fire-retardant polyolefin insulation material
Ceramifiable, Flame retardant and Fire retardant POE compound for low voltage cable is based on POE resin, produced and pelletized by special technology with adding special modifier, flame retardant, anti-oxidant and other special additives.
Processing Technics
The compound can be processed with conventional extruder, and the screw with a minimum 20:1
L/D and a compression ratio of 1.2~1.5 is recommended.
The following temperature profile of extruder is recommended:
Heat Zone |
Zone 1 |
Zone 2 |
Zone 3 |
Zone 4 |
Head |
Die |
Temperature ℃ |
150 |
160 |
170 |
170 |
175 |
175 |
Storage and transport
Packaging: 25kg/bag, Aluminum foil and PE membrane inside bag, and kraft paper outside bag.
Storage and transport: Avoiding in direct basked and weathering. The storage place should be in clean, cool, dry, and ventilated conditions.
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