Conductive Macromolecule Raw Material for Cable Sheath
Product introduction Type: WDHS2072
We take macromolecular material as a carrier and add conductive carbon black, antioxidants, and processing aids to make conductive macromolecule raw material for cable sheath by mixing devices.
Application: perforation ground wire sheath of railway integrated grounding system and other related areas.
Mechanical and physical performance of this conductive polymer for cable sheath
No.
Item
Unit
Performance requirement
Typical value
Test method
1
Tensile strength
MPa
≥10.0
13.0
GB/T2951
2
Elongation at break
%
≥250
400
3
After air oven aging
(100℃±2℃ 168h)
Tensile strength change rate
Change rate of elongation at break
≤±25
±20
4
Impact brittleness temperature
(-40℃±2℃ 3min)
Invalid coefficient
≤15
0
GB/T5470
5
Thermal shrinkage rate
(100℃±2℃ 4h repeat for 5 times)
≤5
6
Environmental stress cracking resistance (reagent concentration of 10%, soak time of 48h)
7
Environmental protection (content of hazardous substances)
Conform with technical specifications for conductive macromolecule sheath of perforation ground wire
The electrical performance of this conductive polymer for cable sheath
Indicator
Volume resistivity of this conductive macromolecule sheath (20℃)
Before aging
Ω.cm
≤0.7
0.6
GB/T3048.3
After air oven aging (100℃168h)
Requirements: Dry it at 60℃ before use.
Recommended processing temperature: 180℃~220℃
Packaging: Paper-plastic bag with moisture-proof lining; it weighs about 25 kg/bag.
Storage: Guard against moisture and fire. The storage period is one year; dry it at 60℃ for 2 hours before use when stored for over one year