Block copolymer 02-MK
Cable composition of propylene - ethylene block copolymer resistant to copper ions
Block copolymer 02 - MK
Application area:
The composition is intended for production by extrusion of cable and wire insulation, resistant to high ambient temperatures and copper, which is resistant to petroleum products.
Brief information about the composition:
Composition 02 - MK is made on the basis of a propylene - ethylene block copolymer with the introduction of special additives that improve the thermal stability of the composition in the presence of copper ions.
An example of a composition designation when ordering and in other documentation:
Block copolymer 02 - MK TU 2211 - 001 - 36295287 - 2017
Composition quality indicators
|
No. |
The name of indicators |
unit of measurement |
Normative value |
|
1 |
Melt flow rate, within |
g / 10min |
0.3 ÷ 4.0 |
|
2 |
The spread of the values of the melt flow rate within the batch, no more |
|
10 |
|
3 |
Mass fraction of volatile substances, no more |
|
0.1 |
|
4 |
Number of inclusions, no more |
PC |
3 |
|
five |
Tensile yield point, not less |
MPa |
24.0 |
|
6 |
Elongation at break, not less |
|
500 |
|
7 |
Vicat softening temperature at a load of 10N, not less |
° C |
148 |
|
eight |
Frost resistance, not higher |
° C |
minus 55 |
|
nine |
Specific volumetric electrical resistance, not less |
Ohm × cm |
1.5 10 16 |
|
ten |
Electric strength at a frequency of 50 Hz, not less |
kV / mm |
38 |
|
eleven |
Change in mass after holding in transformer oil at 115 ° C for 24 hours on specimens 2 mm thick, no more |
% |
25 * |
* - the norm for a modified composition with increased resistance to oil products
Reference indicators
|
No. |
The name of indicators |
unit of measurement |
Normative value |
|
1 |
Brittleness temperature, not higher |
° C |
minus 50 |
|
2 |
The tangent of the angle of dielectric losses at a frequency of 1 × 10 6Hz, no more |
|
4.0 10 - 4 |
|
3 |
Dielectric constant at a frequency of 1 × 10 6Hz, no more |
|
2,3 |
|
4 |
Cracking resistance, not less |
h |
500 |
|
five |
Resistance to thermal oxidative aging at 150 ° С, not less |
h |
2000 |
|
6 |
Resistance to thermal oxidative aging in the presence of copper ions at 150 ° C, not less |
h |
1000 |
Technical documentation:
The composition is produced according to TU 2211 - 001 - 36295287 - 2017 "Cable composition of a block copolymer of propylene with ethylene, resistant to copper ions"
