The static electricity on the textile surface can disap […]
The static electricity on the textile surface can disappear through the following three ways: (1) disappear through the air (mist); (2) disappear along the surface; (3) disappear through the textile body.
(1) Static electricity through the air mainly depends on the flying of charged particles with opposite electrodes in the air to neutralize the static electricity on the surface of the insulator or allow the charged particles to gain kinetic energy and fly away. Using the principle of discharge, a high-voltage corona static eliminator is made. This method has been applied in the production of chemical fiber.
(2) The speed at which static electricity disappears along the surface of the insulator depends on the surface resistivity of the insulator. Increasing the humidity of the air can form a continuous water film on the surface of the hydrophilic insulator, and the dissolution of carbon dioxide and other impurities in the air greatly improves the conductivity of the surface of the insulator. The method to further eliminate static electricity on the surface of the insulator is to use antistatic agents, mainly ionic or non-ionic surfactants.
(3) The leakage rate of static electricity through the insulator mainly depends on the resistivity of the insulator. Generally speaking, when the resistivity of the polymer is less than 107Ω•m, the electrostatic charge will leak out quickly. In order to increase the volume conductivity of the polymer, it is more convenient to add carbon black, metal powder or conductive fiber.
