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[Chemical Knowledge]：Exploring the causes of static electricity generated by plastic friction

Read： 610 Time：14months ago Source：Transform the World with Simplicity

The composition of the plastic material should be understood. Plastics are usually composed of a variety of organic substances, which in the system can usually be seen as a long chain of carbon and hydrogen. In these materials, there are usually some covalent bonds and some ionic bonds. In high-quality high-grade plastics, most ionic bonds are usually clustered together, which means that these ionic bonds are far away from all other ionic bonds, which means that they have a certain spatial stability. This characteristic of

plastic materials is one of the causes of friction and static electricity. When two relatively soft plastic friction, due to the frequency and heat generated by the friction, the chemical bonds stacked together to collide, chemical changes occur, and some signal transfer occurs. This chemical change is not systematically concentrated on the ionic bond, but occurs due to the influence of the contact surface and friction. This chemical change results in the formation of a large number of ions with different charge values. When the ion moves in the ionic bond, it will accumulate in a specific area in a short time. The ion content at this region is significantly increased and the sign of the charge becomes electronegative. Therefore, according to the first law of electricity, objects in this region will exhibit a locally negatively charged state. The electrostatic properties of

plastic materials also depend on the imbalance of the charge distribution. Many complex effects can be explained as the result of uneven distribution, such as the role of lithium-ion batteries, and the structure and interaction of high-molecular substances. For example, when your hair and comb rub, the interaction will form a current with opposite direction. In this way, the places with the most friction are positively charged, while the others are negatively charged. When there is a conductor between these areas, the current will start to flow, and the obvious electrostatic discharge phenomenon can be seen. This is why people in the dry season wearing nylon, plastic clothes will be postal, because nylon, plastic clothes will make the surface of the clothes with a suspended charge, these charges can be excited by the electric field lead to electrostatic discharge.

Finally, the method of preventing static electricity generated by plastic friction is also worthy of our attention. In life, items can be made by using materials with good conductivity, so that items and the surrounding environment are less affected by static electricity. After mastering the basic knowledge of static electricity, we can also select the appropriate static eliminator to achieve the effect of eliminating static electricity.
static electricity generated
plastic friction is a universal phenomenon, we can effectively prevent it by understanding the chemical properties of plastics and the imbalance of charge distribution.

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