Name | ANTISTATIC AGENT |
Synonyms | Zelec TY ANTISTATIC AGENT |
Use | Applications for PVC plastics, polyvinyl chloride, ABS, PMOS, ethylene chloride, vinyl acetate copolymer as antistatic agent |
Antistatic agent, also known as antistatic additive, is to eliminate the harm of static electricity. A small amount of chemical substances are mixed into insulating materials to increase the conductivity and hydrophilicity of the material, reduce the volume resistance and surface resistance, and promote charge leakage. This added chemical substance is called antistatic agent (also called conductive agent, electrostatic elimination agent, etc.). This product can increase the dielectric surface conductivity and volume conductivity, to prevent the generation of static electricity chemical agents. The hazards of static electricity are all over the industrial and mining enterprises. It not only affects the product quality, but also generates sparks due to the excessive strength of the static electric field, which ignites flammable vapor, gas or mixture of dust and air, causing major explosion accidents. When the dielectric electricity reaches a certain charge density, the different parts of the processed dielectric material will interact with each other, which will affect the normal production process. This is the process interference caused by electrostatic force. Weak current caused by static electricity, long-term flow through the human body, or instantaneous discharge to the human body will damage the health of the human body.
Antistatic agents can be divided into two types according to their properties: hygroscopic type and surface active type. Hygroscopic antistatic agent has moisture absorption or moisturizing properties, can form a layer of water film on the surface of the dielectric; belong to this category of polysiloxane, polyol amine, ethylene glycol, glycerin, sorbitol and inorganic salts (calcium chloride, lithium chloride, magnesium chloride). Surface active dosage form antistatic agent, its molecules in the liobile part firmly attached to the dielectric surface, hydrophilic part from the air to absorb moisture, thus forming a thin conductive layer on the surface of the resin, play the role of eliminating static electricity. According to the method of use, antistatic agents can be divided into external antistatic agents and internal antistatic agents. In the mining, mineral processing and metallurgical industries, in order to prevent the electrostatic effect generated by the processing of mineral powder and metal powder, external antistatic agents are generally used; surface coating antistatic agents used in the production process of synthetic fibers are also used externally. The antistatic agent added in the manufacturing process of synthetic resin film and molded products is an internal antistatic agent. In the case of spraying (external use) antistatic agent on the surface of the material, after the conductive layer formed on the surface is removed due to friction or washing, the antistatic effect will be significantly reduced; and the surface conductive layer formed by the internal antistatic agent, although It may also be lost, but because new antistatic agent molecules will move from the inside to the surface soon, it can still produce antistatic effect, so it can maintain the antistatic effect for a long. External antistatic agents include surfactants, silicon compounds, etc. In addition to surfactants, internal antistatic agents have other inorganic substances, such as filling metal powder, carbon black and other substances in solid dielectrics, which can improve their volume conductivity to achieve antistatic effect.