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About Static Electricity - Static Removers (Ionizers)

About Static Electricity

Generating principle of static electricity

The number of electrons is fixed that can exist on each orbit around atomic nucleus. The innermost orbit has 2 electrons, the second has 8, and the third has 18. Sodium (Na) has 11 electrons, but the innermost and second orbits are full. Therefore, the last electron travels in the outer orbit. This state is electrically stable because it has the same number of protons (positive) and electrons (negative).

When two materials come into close contact, negative electrons move freely from molecule to molecule between the two.
One material receives electrons and is charged negatively.
The other material loses electrons and is charged positively.
Then, static electricity is produced.

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Type of electrification

Contact electrification

Electrification that occurs when two objects are simply brought into contact with each other.

Frictional electrification

Electrification that occurs due to friction.

Rolling electrification

Electrification that occurs when a solid of revolution rolls over another object.

Separation electrification

Electrification that occurs due to the separation of contact sides. When the separation speed is faster, the amount of electrification becomes greater.

Ejection electrification

Electrification that occurs due to friction when high pressure gas or liquid is ejected from nozzles.

Induction charging

Electrification that occurs due to electrostatic induction.
When an electrically charged material is brought close to another material, ions of opposite polarity to the electrified material cluster on the surface and electrification occurs.

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Factors that determine the amount of electrification

Contact dimensions

As contact dimensions become larger, the amount of static electricity becomes greater.

Pressure

As pressure becomes higher, the amount of static electricity becomes greater.

Frictional

As the amount of friction becomes greater, the amount of static electricity becomes greater.

Temperature

There are no significant changes. However, when temperature is higher, the resistance value becomes smaller (insulator).

Humidity

When humidity becomes higher, the amount of static electricity becomes smaller.

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Related Products

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  • static_e.pdfDownload

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