What is the electrostatic strength?
1) related to the resistance of the object:
When an object has a certain amount of net positive or net negative charge, it can be said to carry static electricity. Static electricity will slowly decrease over time. The length of this period is related to the resistance of the object. Two extreme examples are plastics and metals. In general, the resistance of plastics is very high, and it is possible to maintain static electricity for a long time, and the resistance of the metal is very low, and the grounded metal has a very short electrostatic charge time. The unit of static electricity is expressed in volts. The voltage in an object is determined by two factors: the charge of the object and the capacitance of the object. If the power of an object is given, the lower the capacitance, the higher the voltage and vice versa. Plastics generally have very low capacitance, so very little power can generate very high voltages. On the contrary, the capacitance of the metal is very high, so more electricity only produces a lower voltage. This is the reason why the problem of static electricity generated by using plastics is more important in practical applications. High voltages can attract dust, cause an operator to be shocked, or cause changes in object properties.
2) Relevant to the humidity of the air:
Because the moisture in the air is a conductor, static humidity is prevented when the humidity of the air is high. When the relative humidity of the air is above 65-70%, the surface of the object tends to form a very thin film of water. The water film can dissolve the CO2 in the air, so that the surface resistivity is greatly reduced, and the static charge is less likely to accumulate. If the relative humidity of the surrounding air drops to 40 to 50%, the static electricity is not easily dissipated, and it is possible to form a high potential.
1. Anti-static material, here is a big category, if there are many products in the subdivision. Take a few common examples, anti-static overalls, gloves, tools, tables, table mats, anti-static bags / trays, floors and more.
2. Static neutralization class, there are also many here, mainly various ion fan / ion wind gun / ion bar, etc.
3. Electrostatic measurement/testing, such as wrist strap/ankle strap/workwear/workbench grounding tester, human body comprehensive resistance tester, ion balance tester, electrostatic discharge tester, etc.