Based on the principles of ESD protection and the conductivity of materials (according to their resistivity), ESD protection materials can be roughly divided into the following types:

1.

Static dissipative material: a material with a surface resistivity equal to or greater than 10 ^ 5 Ω/square， but less than 10 ^ 12 Ω/square,

and a volume resistivity equal to or greater than 10 ^ 4 Ω· cm ，but less than 10 ^ 11 Ω· cm.

2.

Conductive material: A material with a surface resistivity of less than 10 ^ 5 Ω/square and a volume resistivity of less than 10 ^ 4 Ω. cm.

3.

Electrostatic shielding and electromagnetic shielding materials: Shielding materials are conductive materials with low electrical resistivity, with a surface resistivity equal to or less than 10 ^ 4 Ω/square, and generally do not generate static electricity when rubbed on the surface.

They can be used to shield radio frequency and low-frequency electromagnetic fields, but due to their low resistance, they are prone to static induction and discharge in the electrostatic field, which can damage the product. Therefore, a layer of electrostatic dissipation material is usually composite inside the shielding material (such as metal foil).

The advantage of PE anti-static plastic bags is that using a regular PE plastic bag production line, as long as a certain proportion of anti-static agent is added to the raw material ratio, the products produced will have anti-static function.