Radiation Crosslinking Low Smoke Halogen-Free Flame Retardant Polyolefins For Locomotive Cables At
Product Name, Model Type and Usage
| Product model |
Product name |
Characteristics And Uses |
|---|---|---|
|
SH8515-125 |
Radiation Crosslinking Low Smoke Halogen-Free Flame Retardant Polyolefin Cable Material for Locomotive Wire at 125 ℃ |
Fire-resistant oil, mineral oil. Halogen-free material for locomotive line. |
Product introduction
SH8515-125 is a kind of irradiated cross-linked low smoke halogen-free cable material with excellent resistance to mineral oil and fuel oil. It is mainly used for sheathing and insulation of various wires and cables with high oil resistance, such as locomotive wires.
SH8515-125 meets the requirements of GB 12528.11, EN50264 and other product standards, and meets the requirements of RoHS and REACH. SH8515-125 is a green flame retardant material.
Product characteristics
·Excellent oil resistance ·Low smoke emission and low corrosivity
·Excellent mechanical properties ·Good extrusion performance
Processing Guidelines
The best extrusion effect can be obtained by using 1:1.2 low compression ratio screw and PE/PVC screw.
Recommended processing temperature:
| position | 1area | 2area | 3area | 4area | 5area | nose | die port |
|---|---|---|---|---|---|---|---|
| temperature（℃） | 120 | 135 | 145 | 155 | 160 | 165 | 160-165 |
The melt temperature should be controlled between 160 and 175 C, and the maximum temperature should not exceed 180 C.
If the material is stored in humid environment, drying treatment is recommended. The drying temperature is 80 C and the drying time is 1 - 2 hours.
Storage and Packaging
It should be stored in a dry and ventilated warehouse.
The products are packed in 25kg paper-plastic composite bags or 500kg container bags.
It can also be packed according to user's requirements.
Technical characteristics
| physical property |
unit |
SH8515-125 typical value |
test method |
|---|---|---|---|
|
density |
g/cm3 |
1.44 |
GB/T 1033.1 |
|
low temperature embrittlement temperature（-40℃）number of failures |
个 |
0 |
GB/T 5470 |
|
thermal deformation（125℃×4h） |
% |
6 |
GB/T 8815 |
|
|
|
|
|
|
mechanical properties |
unit |
SH8515-125 typical value |
test method |
|
tensile strength |
MPa |
14 |
GB/T 1040 |
|
elongation at break |
% |
195 |
GB/T 1040 |
|
thermal aging properties158℃×7days |
|
|
GB/T 2951.12 |
|
tensile strength change rate |
% |
+14 |
|
|
max change of elongation at break |
% |
-10 |
|
|
thermal extension 20N/cm2 200℃×15min |
|
|
GB/T 2951.21 |
|
elongation under load |
% |
15 |
|
|
permanent deformation |
% |
0 |
|
|
mineral oil resistanceIRM902 100℃×70h |
|
|
GB/T 2951.21 |
|
tensile strength change rate |
% |
-25 |
|
|
max change of elongation at break |
% |
-33 |
|
|
combustible oil RM903 70℃×168h |
|
|
GB/T 2951.21 |
|
tensile strength change rate |
% |
-27 |
|
|
max change of elongation at break |
% |
-34 |
|
|
|
|
|
|
|
electrical performance |
unit |
SH8515-125 typical value |
test method |
|
20℃ volumetric resistivity |
Ω·m |
5.7×1012 |
GB/T 1410 |
|
dielectric strength |
MV/m |
27 |
GB/T 1408.1 |
|
|
|
|
|
|
combustion performance |
unit |
SH8515-125 typical value |
test method |
| oxygen index |
% |
36 |
GB/T 2406 |
|
acid gas |
|
|
GB/T 17650.2 |
|
conductivity |
us/mm |
0.96 |
|
|
PH value |
- |
5.7 |
|
|
maximum smoke density Dm |
|
|
ASTME662 |
|
smoking method |
- |
67 |
|
|
smoke-free method |
- |
192 |
|
|
toxicity index |
- |
1.1 |
NES713 |
