| PVC jacket compound
1.Type and application
|
Product |
Application and Cable Specification |
|
70ºC PVC jacket compound |
Used for wires and cables which working voltage less than 450/750V, and power cables which working voltage less than 26/35KV, according with PVC/ST4 standard of GB5023 and PVC/S-1 standard of GB12706. |
|
70ºC Flexible PVC jacket compound |
Used for flexible wires and cables which working voltage less than 450/750v, according with PVC/ST5 standing of GB5023 |
|
90ºC Flexible PVC jacket compound |
Used for heat resistant wires and cables which working voltage less than 450/750V. |
|
90ºC PVC jacket compound |
Used for heat resistant wires and cables which working voltage less than 450/750V. |
II、PVC jacket compound for wire and cables, based on PVC resin, is made into granula by mixing, plastification and granulation with adding plasticizer, stabilizing agent and etc.
III、Processing：
It is recommended that compound should be processed with common extruder having L/D ratio of 20
The following temperature（ºC）profile of extruder is recommended:
Zone |
Zone 1 |
Zone 2 |
Zone 3 |
Zone 4 |
Head |
Die |
|
Temperature ºC |
140 |
160 |
170 |
175 |
175 |
170 |
IV、Storage and transport
Packaging:25kg/bag, PE membrane inside bag and Kraft outside bag.
Storage and transport: Avoiding in direct sunlight and weathering. The storage place should be in clean、cool、dry、and ventilated conditions.
V、Properties
Table
Item |
Unit |
Standard Value |
|
70ºC PVC jacket compound |
70ºC Flexible PVC jacket compound |
90ºC Flexible PVC jacket compound |
90ºC PVC jacket compound |
|
Tensile Strength |
≥MPa |
15.0 |
12.5 |
12.5 |
16.0 |
|
Elongation at Break |
≥ % |
180 |
200 |
200 |
180 |
|
Impact Brittleness Temperature |
ºC |
-25 |
-30 |
-30 |
-20 |
|
Volume Resistivity, at 20ºC |
≥Ω.m |
1.0*108 |
1.0*108 |
1.0*108 |
1.0*1.09 |
|
Dielectric Strength |
≥MV/m |
18 |
18 |
18 |
18 |
|
Hot Deformation |
≤ % |
50 |
65 |
65 |
40 |
|
Thermal Stability Time at 200ºC |
≥min |
50 |
60 |
60 |
180 |
|
Thermal Stability Time
Aging Temperature
Aging Time
Tensile Strength after aging
Variation on Tensile Strength
Elongation at Break after aging
Variation on Elongation at Break
Loss of Mass |
ºC
h
≥MPa
%
≥%
%
≤g/m² |
100±2
168
15.0
±20
180
±20
23 |
100±2
168
12.5
±20
200
±20
25 |
100±2
240
12.5
±20
200
±20
25 |
135±2
240
16.0
±20
180
±20
— |
115±2
240
—
—
—
—
20 | |
Product description 
