1) When mixing black antistatic rubber compound, the structure of carbon black is easily damaged after mechanical shearing, and the plasticity is increased. As a result, the antistatic property (ie, electrical conductivity) is impaired, so that the kneading can reach a uniform dispersion degree. Be careful to prevent refining. The plasticity of the rubber compound should be controlled at 0.4~0.45.
2) The hot-smelting time of the film-out type should not be too long, and the pitch should not be too small. The reason is the same as above.
3) The deeper the vulcanization cross-linking, the smoother the electrostatic path and the better the electrostatic discharge effect.