Anti-static bag composition and structure
Anti-static bag (silver gray bag) composites product performance by the cpp bottom material + electronic aluminized + pet fabric, which is widely used in all kinds of pc board, computer motherboard, sound card, video card, network card, and electrostatic sensitive technology electronic products packaging. The anti-static packaging materials are formed by the multilayer material composite coating, the inner layer is a heat sealing layer, the strength of the seal goods is twice higher than the general material sealing strength; intermediate layer is the high-strength mechanical layer, having excellent mechanical features; outer is the conductive layer. The materials compatible with related chemical products, good performance, and free from a chemical reaction with the packaging, and can be used directly contact packaging for related products. The moisture resistance achieves Class II; high and low temperature performance is ± 500c. It has excellent mechanical properties, pass mechanical strength, and packing and shipping drop test, meet the requirements of the packaging strength. The anti static bubble bags have a good workability, and the conductive layer using coating process, which can be processed into any shapes according to user requirements. According to the solvent migration test and aging properties test, the service life of the material is 18 years. The static bag packaging materials in China meet international standards.
Advantages and Application Scope
Anti-static bag can maximize protect electrostatic sensitive components from potential electrostatic hazards, the unique Faraday electric cage structure forms "induction hood "effect, in order to reach the efficacy of shield and anti-static for items inside the bag, the outer layer of wear-resistant metal coating and the inner layer of vinyl material, making electrostatic shielding protection to be perfect after complicated process, translucent heat-sealing bag type process, clearly identify items in the bag, the value of the surface resistance is 10 ^ 8-10 ^ 10Ω. Recommended use of anti static plastic bags: for the packaging of electronic products which have anti-static requirements, such as various types of PC board, IC integrated circuits, optical drives, hard drives, electronic components.
The main performance of the anti-static packaging materials
a. To prevent the generation of triboelectrification.
b. Avoid the effects of electrostatic field.
c. Prevent direct discharge with charged human body or in contact with a charged object
It is difficult to make a material have all of the above properties at the same time and often need to use different combinations of materials or composite in order to achieve the required purposes, where the material which can limit the electrostatic charge accumulation, or can be from external electrostatic charge by safely dissipate electrostatic charge or shielding parts can be used as ESD protective packaging materials.
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