Why do electrical appliance packaging foam products have anti-static properties?

Why do foam packaging products for electrical appliances have anti-static properties?

Electrical appliance foam packaging products offer protective and cushioning properties during use, as well as a degree of anti-static protection. Why do electrical appliance foam packaging products have anti-static properties? Yuwo will reveal the principle behind the anti-static electrical appliance foam packaging products.

Adding anti-static agents. Adding anti-static agents is a short-term method to improve the product's anti-static performance. In the production process of electrical appliance foam packaging products, quaternary ammonium salts and phosphate ester anti-static agents can be directly added during production to achieve a better anti-static effect. Adding conductive fillers. In the long run, adding conductive materials is a way to improve the anti-static performance of electrical appliance foam packaging products. Its application principle is: By adding conductive materials, the entire raw material of the electrical appliance foam packaging product forms a stable conductive path, thus achieving a good anti-static effect in future use. Generally, carbon black is used as the conductive material. Both methods can increase the anti-static effect of electrical appliance foam packaging products to a certain extent, but sometimes one method may not be able to meet the user's anti-static performance requirements. In this case, the user can use both anti-static methods simultaneously. Generally, adding conductive materials and anti-static agents simultaneously during the processing of electrical appliance foam packaging products can achieve a good anti-static effect.

Electrical appliance foam packaging, simply put, is packaging made of foam. The commonly referred to electrical appliance foam packaging mainly refers to packaging products commonly known as "foam" produced by using expanded polystyrene (EPS) raw materials through molding and thermal processing. Expanded polystyrene is an ideal packaging material. It can be processed into various shapes and thicknesses according to the needs of the molding process. Under high loads, the material absorbs energy and dissipates energy through deformation to achieve cushioning and shock absorption, and also has insulation and heat insulation functions. EPS packaging products are generally white, and the color can be produced according to requirements. Main features: Light weight. Part of the space of EPS packaging products is replaced by gas, with 300-600 million independent sealed bubbles per cubic decimeter. Therefore, it is several to tens of times larger than plastic. It has the ability to absorb impact loads. When EPS packaging products are subjected to impact loads, the gas in the foam is trapped and compressed, thereby consuming and dissipating external energy. The bubble body gradually terminates the impact load with a smaller negative acceleration, thus having good shock absorption effect. Good thermal insulation performance. The thermal conductivity is the weighted average of the thermal conductivity of pure EPS (108cal/M.H.℃) and the thermal conductivity of air (about 90cal/M.H.℃). Good sound insulation performance. The sound insulation of EPS products is mainly achieved through two methods: one is to absorb sound energy, reduce reflection and transmission; the other is to eliminate resonance and reduce noise. Good aging resistance and corrosion resistance. Except for long-term exposure to high-energy radiation, there is no obvious aging phenomenon. It can withstand a variety of chemical substances, such as dilute acids, dilute alkalis, methanol, lime, asphalt, etc. Anti-static performance. Due to the low conductivity of EPS products, it is easy to generate self-charging during friction, which will not affect general user products. For high-precision electronic products, especially modern electrical large-scale integrated circuit structure components, anti-static EPS products should be used.