What are the characteristics of plastic
1. Light specific gravity
The specific gravity of plastic is about 0.9-2.3. Compared with metal materials, its weight is only 1/2 of the same volume of aluminum, 1/5 of steel, and 1/8 of lead. If it is porous foam plastic, the specific gravity is much lighter than ordinary plastic.
Due to the light specific gravity of plastic, it also has great advantages for products. For example, plastic products are lighter, more beautiful, more convenient to carry, and more convenient in transportation and storage. They are very suitable for the use requirements of daily plastic products.
2. Good chemical stability
The chemical stability of plastic is very good, even if it encounters acid, salt, solvent, waste gas, etc., it cannot play a chemical role. It is often used to make various industrial, agricultural, civil and other plastic products. For example, polyethylene film, we usually use it in food packaging bags, drug packaging bags, fertilizer packaging containers, etc.
3. Good electrical insulation
Plastics have good electrical insulation properties and are commonly used materials in the modern electrical and electronic industries. Some plastics also have excellent high-frequency resistance, and are often used in radio communications, radar and other equipment. There are also light plugs, switches, hair dryers, handles for electric rolling knives, etc. are all useful.
