Anti static tray is a functional industrial vehicle specifically used for storing and transporting static sensitive items. Through material modification or surface treatment technology, it has static dissipation or conductivity characteristics, effectively avoiding damage caused by static electricity accumulation to precision electronic components, chemicals, etc.
1. Materials and Structure
Anti static trays often use plastic substrates such as polyethylene (PE) and polypropylene (PP), and construct a conductive network by adding additives such as carbon fiber, conductive carbon black, or metal powder. For example, when the amount of carbon black added reaches 5% -8%, the surface resistance can be stabilized in the range of 10 ⁶ -10 ⁹ Ω, which not only meets the requirements of electrostatic discharge, but also avoids the risk of high current. Some high-end trays adopt a double-layer structure design, with a wear-resistant and anti-static layer on the surface and a reinforced mechanical performance on the inner layer, balancing functionality and durability.
2. Core functions
Its core lies in introducing static charges from the surface of objects into the earth through conductive pathways. For example, after connecting the tray to the grounding system in an electronics factory, the static voltage during chip transportation can be reduced from several thousand volts to within a safe threshold. In chemical storage scenarios, the combination of pallets and copper strip grounding systems can suppress the risk of electrostatic explosion in storage areas for flammable materials such as toluene.
3. Application adaptability
Electronic manufacturing: Adapting to JEDEC standards, protecting semiconductor components from electrostatic breakdown, and increasing yield to over 99%.
Biopharmaceuticals: Low temperature resistant models can maintain charge dissipation in an environment of -30 ℃, preventing electrostatic adsorption and damage to freeze-dried vaccine bottles.
New energy transportation: The honeycomb structure design integrates graphene conductive layers to ensure that the static voltage of lithium battery packs during transportation is below 50V.
4. Performance influencing factors
The anti-static performance may deteriorate due to material aging, mechanical wear, or environmental corrosion. For example, the carbon fiber conductive layer may develop cracks after frequent forklift impacts, leading to abnormal local resistance values. Therefore, it is crucial to regularly check the surface resistance (recommended value of 10 ⁶ -10 ⁹ Ω) and the integrity of the grounding system.
As an "electrostatic barrier" in the industrial chain, anti-static trays have become an indispensable safety substrate in fields such as electronics, chemical engineering, and healthcare through the combination of material science and engineering design.
2025-03-10
