[ Chinese wardrobe net ] The climate is dry in autumn and winter. People often encounter static electricity in their daily life. For example, when you open the faucet at home, touch the door handle and pull the window, etc., you will feel the tingling of electric shock. So how does static electricity come about? What effect does it have on the human body? How can I reduce the damage to the human body?
The cause of static electricity - friction and contact
â— The friction between the human body and the clothes it wears, between the clothes and the clothes, and between the human body and the clothes and the air causes the human body, clothing and air to be electrostatically charged.
â— Various indoor polymer materials, wall surfaces and floors are made of various polymer materials. The charge accumulated on the air flow also affects the body's charge distribution.
â— The static charge generated by various household appliances (especially TV sets, computer monitors, etc.) also affects the body's charge accumulation.
Static electricity generation conditions - dry air
Experiments have shown that in the weather with air humidity below 30%, the insulation resistance of the air increases, and the charge on the human body is not easily released by friction, and voltages of thousands to tens of thousands of volts can be generated. Although the human body has a high electrostatic voltage. However, due to the small current, the human body will not be damaged by electric shock.
The effect of static electricity on people
The human body is composed of cells, and the cells maintain normal substance and energy exchange through the cell membrane (the potential difference between the inside and outside of the cell membrane). When the voltage of the human body rises, it will affect the permeability of the cell membrane, which will affect the human body function in severe cases. Studies have shown that electrostatic interference can change the normal potential difference of the human body surface and affect the normal electrophysiological process of the heart muscle. Long-lasting static electricity can change the pH of the blood, resulting in a decrease in serum calcium. Causes itchy skin. Pigmentation and so on. Excessive static electricity often causes anxiety, headache, chest tightness, difficulty breathing, and coughing.
To prevent the generation of static electricity, the following aspects should be paid attention to in life.
1. Choose soft cotton textile underwear, underwear, try not to wear chemical fiber clothing.
2. Avoid using chemical fiber carpets and other plastic textures in your home as much as possible.
3. Pay attention to maintaining a certain indoor humidity. It is best to use a humidifier during the dry season. You can also put a basin of water or place some flowers in the room to avoid static electricity.
4. Drivers, in the autumn and winter of static electricity, should try not to use the remote control car lock, but use the key to open the door.
5. Use skin care products with good moisturizing properties to ensure adequate skin moisture.
6. Eat more fresh vegetables and fruits, maintain the normal electrolyte balance of the human body, and maintain the normal membrane potential of the cells.
After the human body generates static electricity, the static electricity can be released in the following ways.
1. Use alternatives to avoid human tip discharge. The tip end portion of the object has a large curvature and a high charge surface density, which facilitates charge release. Therefore, we should avoid using the human body (such as the fingertips) as a tip to discharge, in order to avoid the shock of electric shock. In your life, try not to directly touch your fingertips with objects that may cause static electricity, such as metal gates, aluminum alloy windows, faucets, etc., but first grasp a bunch of keys with a large area and then touch the tip of the key. The static electricity on your body will be thrown away and will not be shocked. You can also use small metal devices (such as keys), cotton rags, etc. to touch the door that can cause static electricity, and remove the static electricity from the door handle, faucet, seat back, bed rail, etc., and then touch it by hand.
2. Another way to avoid tip discharge is to increase the contact area. In the case where it is necessary to contact the metal material, the palm surface can be contacted first to increase the discharge area, so that the human body does not feel the discharge process.
3. Increase the discharge time and reduce the inrush current. The same amount of electricity is released over a longer period of time, and the human body feels less intense. For example, when the hair is not combed, immerse the comb in the water for a period of time. After the static electricity is removed, the hair can be combed. The water on the comb can also absorb some of the charge, reducing the amount of static electricity on the hair.
4. Bathing and changing clothes frequently can effectively eliminate the static electricity accumulated on the surface of the human body.
5. After watching the TV and running out of the computer, you should wash your face and wash your face immediately, so that the static charge on the surface of the skin is released in the water.
6. Rest can be barefoot, which is conducive to the static discharge of body surface accumulation.
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