Are you familiar with the melt-blown cloth static electret detection method and precautions for use? The LISUN---DC high voltage generator raises the 220V input voltage and outputs positive and negative voltages respectively.A strong electric field is generated between the positive and negative discharge electrodes, air molecules are ionized, and the positive discharge electrode sharply generates positive ions. The negative discharge electrode sharply generates negative ions, and positive and negative ions simultaneously generate static electricity to neutralize the surface of the object.When the surface of the charged object is positive potential, the negative ions will neutralize it. On the contrary, if the surface is negative potential, the positive ions will neutralize. DC corona The product can generate positive and negative ions without being grounded.The positive and negative ions acting on the surface of the object are sufficient, and the speed of neutralizing static electricity is very rapid.
1Electrostatic electret complete equipment is a processing equipment designed for non-woven filter materials to improve filtration efficiency. The electrostatic generator consists of three parts, including the electrostatic generator host, step-up transformer and electret processing frame, and melt-blown cloth process Process: polymer feeding-melt extrusion-fiber formation-fiber cooling-web formation-reinforcement into cloth. Meltblown cloth mainly uses polypropylene as the main raw material, and the fiber diameter can reach 1 to 5 microns. There are many voids, fluffy structure and good folding resistance. These ultrafine fibers with unique capillary structure increase the number and specific surface area of ??fibers per unit area. Make the melt-blown cloth have good filtering, shielding, heat insulation and oil absorption. It can be used in the fields of air, liquid filtration materials, insulation materials, absorption materials, mask materials, thermal insulation materials, oil-absorbing materials and wipes.
1The issue of protecting equipment from electrostatic discharge is very important for manufacturers and users.
With the wide application of original microelectronics, in order to improve the reliability of products and systems, it is urgent to determine the various factors of this problem and find a solution.
The accumulation of static electricity and subsequent discharge problems have become more of a concern because of uncontrolled environmental conditions and the widespread use of equipment and systems in factories and mines.
Whenever a person discharges static electricity to nearby objects, the device may be subject to electromagnetic energy. In addition, discharge may occur between metal objects near the equipment, such as between tables and chairs.
The static generator mainly generates static electricity, and the output is usually unipolar. If it is positive or negative, the output voltage can be adjusted. It is usually used in scientific research.
1The main products of LISUN include distributed photometer, integrating sphere, spectral radiometer, photometer, colorimeter, LED test instrument, conducted radiation test system, lightning surge generator, electrostatic generator, environmental test equipment, high Low temperature and humidity alternating box, waterproof tester, dustproof test box, safety tester, switch socket tester, electrical parameter table, AC and DC power supply. The electret treatment makes the filter material fibers charged, combined with the dense characteristics of melt-blown ultrafine fiber materials, so a large number of electrodes are formed between the charged fibers. The charged fibers can not only attract most of the charged particles in the environment like a magnet, but also Part of the uncharged particles can be polarized, and then some pollutants with smaller particle size can be adsorbed. Even nano-scale substances such as viruses can be electrostatically adsorbed or blocked by charge repulsion.
1Meltblown non-woven fabrics need to be added with a trace substance called "electret", which is easily charged with static electricity. Non-woven fabrics can be melted by "corona discharge" through electrostatic electret equipment. Sprayed non-woven fabrics have been charged for a long time. Electret processing. Electret refers to a dielectric material with long-term charge storage function. It has the advantages of high efficiency, low flow resistance, power consumption, and energy saving. On the basis of ensuring the physical collision barrier effect of conventional filter materials, the electrostatic adsorption effect is increased.