About the technical application of antistatic non-woven fabrics

Strictly speaking, non-woven fabrics are not anti-static, but in order to ensure that non-woven fabrics play an anti-static role in certain applications, we have to change certain characteristics of non-woven fabrics so that they can be anti-static. The most commonly used features are the addition of antistatic masterbatches or antistatic agents in the production process. Today we will talk about the technical application of antistatic non-woven fabrics in detail. Antistatic agents play many roles in the production, processing and use of non-woven textiles and synthetic resin films, especially preventing the occurrence and accumulation of static electricity, and overcoming the electric charges generated by the friction of non-woven textiles. In today's electronic information technology The meaning is greater. Antistatic finishing agent is a general term for substances used to suppress the amount of static electricity generated on the surface of materials with good electrical insulation properties such as synthetic resin, or to eliminate the amount of accumulated static electricity. The antistatic finishing agent developed by modern chemical industry has been widely used in non-woven textiles and plastic products. It plays a very good role in restraining the generation, accumulation and dissipation of static electricity. In addition to metal ions such as sodium and potassium, the cation part of the counterion of non-woven fabrics is also used with alkyl alcohol amines such as triethanolamine. It mainly includes higher alkyd esters (salts), aliphatic sulfonates, and higher acid phosphates (salts). As additives and antistatic finishing agents in the processing of synthetic non-woven fabrics, there are anionic, cationic, nonionic and amphoteric surfactants. Among them, anionic antistatic agents have good thermal stability and are mostly used in the production and processing of non-woven textiles. At present, the most used external antistatic finishing agent. It is used for surface spraying in the production and processing of non-woven fabrics; antistatic finishing agents mainly refer to metal powders and inorganics such as carbon, polysiloxane compounds, surfactants, etc. For example, the antistatic properties of non-woven fabrics can be improved by blending or copolymerizing hydrophilic polyethylene glycol, sodium alkyl sulfonate, etc. with polymers. Generally, the specific resistance of non-woven textiles is more than 1013Ωcm. Through the moisture absorption modification method and finishing with antistatic finishing agent, the non-woven textiles can reach the antistatic level. Usually, non-woven fabrics that reach this specific resistance level under standard conditions (relative humidity 65%, 20°C) are called antistatic non-woven fabrics. The ability of non-woven textiles to leak static charges is related to the specific resistance of non-woven textiles. In order to prevent the electrostatic voltage from drying to an unpleasant level, the specific resistance of non-woven textiles should be less than 1010Ωcm. Non-woven textiles are naturally charged when they are rubbed. How to make the electrostatic charge leak out quickly to avoid electrostatic damage? Therefore, composite materials such as antistatic conductive non-woven fabrics, films, and sheets are used to shield electromagnetic waves, prevent electrostatic effects, and reduce electrostatic disasters. This not only damages semiconductor devices, but can also cause accidents. We know that static electricity can cause electronic equipment or office automation equipment integrated circuits (IC) to malfunction, damage the storage, especially to electromagnetic waves (EMI) and electrostatic induction (ESD) interference. The above is a summary of the technical application of antistatic non-woven fabrics. If you don't understand, you can directly contact the relevant personnel of Fujian Non-woven Co., Ltd.