ENSACO® Conductive Carbon Black for polymer ... - Timcal Graphite
ENSACO® Conductive Carbon Black for polymer ... - Timcal Graphite
ENSACO® Conductive Carbon Black for polymer ... - Timcal Graphite
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Typical applications <strong>for</strong> <strong>ENSACO®</strong> <strong>Conductive</strong> <strong>Carbon</strong> <strong>Black</strong><br />
Power cables<br />
and accessories<br />
N<strong>Conductive</strong> carbon black is used in semicon<br />
compounds <strong>for</strong> conductor and insulator shields.<br />
NThe requirements <strong>for</strong> those compounds are<br />
besides processing, a sufficient electrical conductivity,<br />
a smooth or even supersmooth surface<br />
finish, and high purity.<br />
NFor strippable or easy strippable compounds<br />
these requirements are added to a specific adhesion<br />
strength between the insulating layer and<br />
the insulator shield. These strippable or easy<br />
strippable layers have to peeled of by hand or<br />
using a specific peeling device.<br />
NTypical <strong>polymer</strong> compositions are polyolefins<br />
or co<strong>polymer</strong>s; <strong>for</strong> strippable compounds quite<br />
often blends of EVA and NBR are used.<br />
Typical EVA/NBR strippable compounds<br />
Levaprene 450<br />
Perbunan NT 8625<br />
Rhenogran P60<br />
N-472<br />
E 210<br />
E 250<br />
N-550<br />
Antilux 654<br />
Zn Stearate<br />
Rhenovin DDA-70<br />
Rhenofit TAC/CS<br />
Percadox BC-408<br />
Viscosity ML (4+1)<br />
Rheometer@180 t90%<br />
Mechanical properties<br />
Non aged (diff. aged)<br />
Tensile strength MPa<br />
Elongation at break %<br />
Modulus 100% MPa<br />
Shore A<br />
Peel strength hot air 100°C N<br />
after 3 days N<br />
after 21 days N<br />
Volume resistivity (Ohm.cm)<br />
Compound<br />
N-472<br />
90<br />
10<br />
3<br />
40<br />
40<br />
10<br />
1<br />
1.4<br />
4.3<br />
5<br />
56<br />
3.6<br />
16.5 (-19)<br />
215 (-58)<br />
11<br />
87 (+7)<br />
7<br />
5<br />
5<br />
210<br />
Compound<br />
ENSACO 210<br />
90<br />
10<br />
3<br />
40<br />
40<br />
10<br />
1<br />
1.4<br />
4.3<br />
5<br />
44<br />
3.6<br />
16.9 (-15)<br />
180 (-50)<br />
12.2<br />
90 (+4)<br />
3<br />
4<br />
3<br />
6600<br />
Typical EEA/EBA semicon compounds<br />
EEA<br />
EBA<br />
E 250<br />
Peroxide<br />
Mixing cond. L/D15; Feed BC; Truput 30<br />
Resistivity @ RT<br />
Resistivity @ 90°C<br />
<strong>Carbon</strong> black dispersion:
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