Anti-static workbench anti-static principle knowledge
We all know that the unbalanced electron distribution is caused by the electrons deviating from the orbit by external force. Any two objects of different materials are contacted and then separated, which can generate static frictional electrification and rarely heard of contact electrification. In essence, triboelectricity is a process of contact and separation causing an imbalance of positive and negative charges. Friction is a process of constant contact and separation. The other body gets some remaining electrons and becomes negatively charged, so triboelectricity is essentially contact separation electrification. If the charge of the anti-static shelf is difficult to neutralize during the separation process, the charge will accumulate and the object will be charged with static electricity. In daily life, various objects may generate static electricity due to movement or friction.
Another common type of electrification is induction electrification. When a charged object approaches an uncharged object on the antistatic workbench, negative and positive electricity will be induced at both ends of the uncharged conductor respectively. When two different objects are in contact with each other, one object loses some charge, such as electrons transfer to another object to make it positively charged. Usually when peeling a plastic film from an object is a typical "contact separation" electrification, the static electricity generated by taking off clothes in daily life is also "contact separation" electrification. Except that objects can be electrified when they are separated after contact, when a charged object approaches an uncharged object, negative and positive electricity will be induced at both ends of the uncharged conductor respectively.
As we all know, anti-static workbenches are composed of molecules, which are composed of atoms, and the atoms are composed of negatively charged electrons and positively charged protons. Under normal conditions, the number of protons and electrons of an atom are the same, and the positive and negative balances are balanced, so it appears uncharged to the outside.