N660 is the main variety in the N600 series of carbon blacks, because it has the high constant elongation stress of high-density furnace black, the good processability of fast-pressed furnace black, the high elasticity of semi-reinforced furnace black and the flexural resistance of fine particle furnace black. Because it is widely used, it is also called general furnace black. Compared with semi-reinforced furnace black, N660 has a higher structure, slightly finer particles, and is easy to disperse in the rubber compound. The rubber compound has higher tensile strength and constant elongation stress, and has small deformation, low heat generation, and good elasticity. Resistant to flexing, but slightly lower elongation.
N660 is widely used, suitable for tire cords, high-speed conveyor belts, cables, shoes and other calendered products.
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