PP and PE polyolefin sheets, due to their low density, good heat resistance, high thermal deformation temperature, excellent chemical compatibility, good tensile strength and wear resistance, balanced hardness and impact resistance, easy availability of raw materials, and low cost, are widely used as packaging materials in various industries. However, as non-polar high molecular materials with high crystallinity and low surface energy, they are good insulators with surface resistivity exceeding 10^14 Ω/□ (ohms/square). They are prone to static charge buildup, which can damage electronic products, and they easily attract dust, making them unsuitable for clean rooms with purification requirements. Therefore, they are generally not suitable for packaging electronic components, printed circuit boards (PCBs), and other products that require anti-static properties, as well as for environments with anti-static and purification demands.

To address the aforementioned issues, the existing technology generally adopts the following measures and methods:

(1) The incorporation of low molecular weight antistatic agents, such as surfactants, into the manufacturing of plastic antistatic film has the following drawbacks: a. The antistatic effect is achieved slowly as the surfactants slowly precipitate to the surface and absorb moisture from the atmosphere, making it ineffective immediately; b. The addition of antistatic agents to plastic raw materials can cause slippage and backflow during extrusion, leading to unstable plastic extrusion, poor thickness stability, and surface smoothness of the film; c. The antistatic agents are significantly affected by humidity, with poor or even no antistatic effect in most northern regions of China due to dry weather and low humidity; d. After precipitating on the surface, the antistatic agents are washed away by water, reducing their effectiveness and durability, and their precipitation can easily contaminate products they come into contact with, leading to poor product quality; e. Most importantly, the surface resistivity of the film produced by this method can only reach 10^9 Ω/□, which does not meet the higher requirements for antistatic performance.

(2) By adding intrinsic conductive polymers (ICP) or intrinsic dielectric dissipative polymers (IDP) to plastic raw materials, plastic antistatic sheet materials can be manufactured. However, although this method produces plastic sheets with long-lasting and effective antistatic properties and is unaffected by environmental temperature, the surface resistivity can only reach above 10^8 Ω/□ and cannot be stabilized at a lower level. Moreover, manufacturing antistatic sheet materials using this method requires a significant amount of expensive intrinsic conductive or dielectric dissipative high molecular weight polymers, often 10-30%, leading to high costs. Therefore, this method is only chosen in specific industries with special usage requirements.

(3) By adding conductive carbon black, nanotubes, carbon fiber, conductive metal powders, etc. to plastics, anti-static plastic sheet materials can be produced. Although this method achieves anti-static effects with plastic sheets having a surface resistivity as low as 103 to 109 Ω/□, the film often requires the addition of fine powdery inorganic substances totaling over 10%, which increases the difficulty of forming and processing the plastic sheet, affects its strength, reduces its toughness, can cause sparks upon electrical contact, and can only be produced in black, failing to meet the demand for colorful finishes.

(4) The manufacturing of antistatic plastic sheeting by applying an antistatic liquid to the surface of plastic sheets offers a cost-effective solution for achieving good antistatic properties. However, this mature process is primarily used for polar high polymer materials with high surface energy, such as polyester (PET), poly(PS), and poly(PVC) antistatic sheeting. For non-polar high polymer materials like PP and PE olefins, which have lower surface energy, applying antistatic liquid typically results in low adhesion, making it prone to peeling off during friction or cleaning, thereby losing its antistatic effectiveness.