Carbon Black / N220
N220 is a fine, active carbon black used for industrial rubber goods. N 220 imparts to rubber and has a high wear resistance and tear strength with a relatively low modulus. Used for tire treads, retreading as well as high-quality industrial rubber goods and high grade conveyor belts.
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CHEMICAL AND PHYSICAL PROPERTIES OF N220 CARBON BLACK |
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GRADE |
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ASTM TEST |
N-220 |
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Iodine absorption |
g/kg |
D 1510 |
121±5 |
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DBP absorption |
ml/100g |
D 2424 |
114±5 |
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CTAB surface area |
m2/kg |
D 3765 |
111±5 |
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Heating loss |
@ 125 °C |
D 1509 |
1.00 |
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Ash content |
% max |
D 1506 |
1.00 |
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Sieve residue N 35 |
% max |
D 1514 |
0.001 |
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Sieve residue N 325 |
% max |
D1514 |
0.10 |
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Fine Content |
% max |
D 1508 |
7 |
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Pour density |
kg/m3 |
D 1513 |
345±30 |
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Sulphur content |
% max |
D 1619 |
1.10 |
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Colour strength |
% |
D 3265 |
115±5 |
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DBP absorption after pressing |
ml/100g |
D 3493 |
100±5 |
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pH value |
|
D 1512 |
7-10 |
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Toluol extract |
% min |
D 1618 |
90 |
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Pellet hardness |
g |
D 3303 |
15-100 |