Plastic antistatic agent profile

Plastics are widely used in modern society, polymer composite materials, it has a high surface resistivity (25 ℃, RH60%, resistance 1017Ω). Therefore, when the friction charged, the static electricity easily removed and retained by the conductive surface of the plastic. Since the presence of static electricity, not only affects the appearance of plastic products (cleaning, etc.), but the main thing is the impact of the manufacture and use of plastics. To this end, plastic anti-static agent, its role is to reduce the plastic surface and the surface resistivity polymer charge density, so as to achieve the purpose of electrostatic hazards released. In general, the resistance of the plastic is very large, it is charged by friction or contact with, easy to trigger a variety of electrostatic effects, such as discharge, shock, dust and damage absorption appearance, IC short circuit. In order to avoid this effect are generally used antistatic agent.

Typically, in order to prevent generation of static electricity plastics, the following methods are mostly used,Character LCD Display one normal humidity environment to maintain and use, suitable for addition to the motor; the second is applied to the surface of plastic low-molecular type antistatic agent; Third, the use of carbon , filtered and the permanent conductive antistatic agent; Fourth, in the conductive polymer material to improve its molecular structure. In addition to using the plastic antistatic agents, but also used in the fiber, paper, paints, inks, petroleum products, etc. These products are often static adhesion of stains situation.

From the comparison of various anti-static technology point of view, in addition to static physical means, material characteristics are not changed, but the equipment expensive, can only be applied in some shapes; for product surface treatment method is simple, but the lack of durability; conductive paint coating, can be used in complex shapes, 240x64 lcd module and is applicable to a wide range of materials, equipment, costs less, but the price is high, the risk of peeling, and uniform coated film is difficult; metallised there are no partial peeling, but Application materials are limited and costly equipment, resulting in environmental pollution problems.

Within the method of adding an antistatic agent, a surfactant (low molecular weight antistatic agent), cheap, easy to operate, easy to change but the material surface characteristics, friction, easily washed off, and is not colored; add permanent antistatic agent (hydrophilic polymer), electrical conductivity, good stability, but the price is high, the added amount is greater, and will be subject to the physical properties of plastics.