Introduction to anti-static plastic bags
The main form of electrostatic hazards in the electronics industry is the sudden failure and potential failure of components caused by electrostatic discharge, which in turn causes the performance of the entire machine to decline or fail. Therefore, the main purpose of electrostatic protection and control should be to control electrostatic discharge, that is, to prevent the occurrence of electrostatic discharge or reduce the energy of electrostatic discharge to below the damage threshold of all sensitive devices.
In principle, electrostatic protection should be carried out from two aspects: controlling the generation of static electricity and controlling the dissipation of static electricity. Controlling the generation of static electricity mainly involves controlling the process and the selection of materials in the process; controlling the dissipation of static electricity mainly involves quickly and safely discharging and neutralizing static electricity; the result of the combined effect of the two is that the static electricity level may not exceed the safety limit, achieving the purpose of electrostatic protection.
The following will introduce several types of anti-static bags in the electronics industry and their characteristics:
1) Shielded anti-static sealed bags
It is made of polyethylene and anti-static agents imported from Germany, and is blown by special machinery. It is easy to package and closes with a pinch of fingers. It can reduce the complicated packaging procedures for you and can be used for the packaging of electronic components, PC boards, etc. The surface resistance value is 109-1011Ω.
2) PE red antistatic bag
This antistatic bag is the best packaging material for printed circuit boards, which can reliably release the static electricity generated by printed circuit boards and avoid damage. The technical indicators are as follows: in line with MIL-B-81705B; internal and external surface resistance 103~≤1011Ω; static discharge time <2 seconds
3) Antistatic shielding bag
In order to make plastics shield electromagnetic waves, plastics should be metalized with antistatic agents, which has a good shielding effect. Surface resistance: 106Ω-109Ω
4) Antistatic bubble bag
Antistatic bubble bags and bubble sheets can prevent products from being damaged by collision or static electricity during production, handling and transportation. This bag is suitable for the packaging of electronic products that are sensitive to static electricity.
5) Antistatic moisture-proof bag
Suitable for the transportation and packaging of high-tech electronic products such as PCBs and ICs that are sensitive to static electricity. It has antistatic and moisture-proof functions. The inner and outer layers of the anti-static moisture-proof bag are made of transparent anti-static materials, and the middle layer is an aluminum foil with excellent barrier and conductivity, so it has good anti-static, moisture-proof and electromagnetic shielding properties, and its appearance is silvery white. It is mainly used in the packaging of electronic products that are sensitive to static electricity and need to be moisture-proof and anti-electromagnetic interference.