Far East New Materials’ 70 Degree flexible PVC cable insulating compound (J-70) refers to insulating material for wire and cable. It is produced from PVC as base material and auxiliary materials, such as plasticizer and stabilizer, after being mixed, plasticized and granulated. It is applicable for insulating layer of instrument communication cable, 0.6-1KV and below cable.
I. Basic Performances
Item
Standards
Unit
Test Result
Item Conclusion
Tensile Strength
≧15.0
MPa
18.9
Qualified
Elongation at Break
≧150
%
292
Qualified
After Air-oven Heat Aging (100°C, 168h)
Tensile Strength
≥15.0
MPa
18.3
Qualified
Variable Rate of Tensile Strength
≦+20
≥-20
%
-3
Qualified
Elongation at Break
≧150
%
278
Qualified
Variable Rate of Elongation at Break
≦+20
≥-20
%
-5
Qualified
Thermal Ageing Quality Loss
≦20
g/m²
6
Qualified
Thermal Deformation (120°C, 1h)
≦40
%
22
Qualified
Low-temperature Impact Embrittlement (-15°C)
≦15/30
Nr.
0/30
Qualified
Thermal Stability Time (200°C)
≥60
min
>60
Qualified
Volume Resistivity (20°C)
≧1.0×1012
Ω. m
2.1×1012
Qualified
Volume Resistivity (70°C)
≧1.0×109
Ω. m
4.6×109
Qualified
Dielectric Strength
≧20
MV/m
28
Qualified
II. Proposed Process Conditions
Temperature of machine body:150°C-180°C
Temperature of machine head:185°C
Temperature of extrusion die: 190°C
III. Packing and Storage
The product is adopted with outer packing (composite bag) together with inner packing (plastic bag) with weight per bag of 25kg. It is moisture-proof and well packed during storage and transportation.