The unassuming static electricity forecast (March 18)

1. How is static electricity generated?

Static electricity can be generated when any two objects of different materials come into and then separate, such as hair and a comb, a carpet and slippers, clothes and the body, or a balloon and a cat. The common method of static electricity is friction. Since air is also composed of atoms, it can be said that static electricity can be generated at any time and anywhere in people's lives.

. Hazards of static electricity?

Danger of contact with hydrogen:

Hydrogen is a highly active flammable gas, and a small spark can ignite it. Static arcs can puncture and ignite hydrogen balloons, so there is a huge safety hazard when hydrogen balloons encounter static electricity discharge!

Danger of contact with dust:

For dust to, three conditions must be met: sufficient oxygen, a source of fire, and the most important condition is that the combustible dust must form a dust cloud of a concentration. So why can static electricity sparks cause a dust cloud to explode?

For example, if there are three dust particles in a space, and the distance between the is very far, if static electricity ignites one of the dust particles, the heat it emits cannot ignite the other two dust particles. If this space is filled with dust particles, the distance between the particles will be greatly shortened, and if one of them is ignited, the heat released can easily affect the surrounding dust, causing the cloud to burn.

3. How to prevent static electricity

To deal with static electricity, we can take two approaches: "prevention" and "discharge".Prevention" means we should try to use pure cotton products as the fabric for clothes and home decor, avoid using synthetic fiber carpets and furniture with plastic as the surface to prevent friction from generating electricity. We should also stay away from appliances such as televisions and refrigerators to prevent induction from generating electricity. "Discharge" means need to increase humidity so that local static electricity is easy to discharge. After turning off the TV and leaving the computer, you should immediately wash your hands and face to the static electricity on the skin surface into the water. In winter, you should use high-moisture cosmetics as much as possible. Use a humidifier regularly Some people like to keep ornamental fish and water lilies indoors, which is also a good way to regulate indoor humidity.

4. Applications of static electricity:

Static can be used for dust removal, electrostatic spraying, flocking, photocopying, and air purification.

Static electricity dust removal: can remove coal dust from smokeStatic electricity photocopying: can quickly and conveniently copy books, materials, and documents.