Black polyethylene material for wire and cable is a polyethylene-based pellet material which is produced by mixing, plasticizing and granulating with accessory ingredients such as carbon black and antioxidant.
1. Model, Name and Application of Products
|
Model |
Name |
Application |
|
NDH |
Environmental-cracking resistant, low-density polyethylene black sheathing compound |
Sheath of communication cable, control cable, signal and power cable, which are required to be highly resistant to environmental cracking |
|
LDH |
Linear and low-density polyethylene black sheathing compound |
|
MH |
Medium-density polyethylene black sheathing compound |
Sheath of communication cable, fiber optic cable, submarine cable and power cable |
|
GH |
High-density polyethylene black sheathing compound |
|
NDJ |
Weather-resistant, low-density polyethylene
black insulated compound |
Insulation of overhead cable or other similar cables with rated voltages up to and including 1kV |
|
NLDJ |
Weather-resistant, linear low-density polyethylene black insulated compound |
|
NMJ |
Weather-resistant, and medium-density polyethylene black insulated compound |
Insulation of overhead cable or other similar cables with rated voltages up to and including 1kV |
|
NGJ |
Weather-resistant, and high-density polyethylene black insulated compound |
2. Executive Standard
GB/T 15065-2009
3. Processing
A single screw extruder is used in the processing with the length-diameter ratio of screw L/D≥20. The recommended reference processing temperatures are shown below:
|
Sections |
Section 1 |
Section 2 |
Section 3 |
Section 4 |
Extrusion head |
Extrusion die |
|
Temperatures/℃ |
160±10 |
170±10 |
180±10 |
190±10 |
195±10 |
200±10 |
4. Packaging, Transportation and Storage
Packaging: The net weight per bag is (25±0.2) kg with the inner polyethylene film bag and the outer craft paper composite bag.
Transportation and storage: No exposure to sunshine and rain during transportation.
It should be stored in the clean, cool, dry and ventilated warehouse.