An Introduction of How Plastics Are Manufactured

Plastics are very versatile and are widely used in everyday life, from common household items to a wide variety of uses in construction and agricultural products. Manufacturing of plastic containers was first made in 1862 and since then the types of plastics and their uses have multiplied.

Injection Molding of Bottles

Plastics are synthetic materials consisting of small organic molecules that usually contain carbon and hydrogen with a mixture of other elements, e.g. Oxygen, nitrogen, or chlorine. These molecules combine to form polymers, which can then be transformed into any shape. 

Plastics fall into two distinct categories; Thermoplastics and thermo reactors. Thermoplastics are plastics that can be continuously heated and reshaped after manufacture, making recycling easier. However, thermoset reagents cannot be reformed and once set cannot be printed.

There are many different types of plastic made by plastic companies around the world. The end result depends on the additional elements added to the plastic during production. The resulting polymer has a characteristic decomposition method and is resistant to heat, chemicals, and light.

There are many molding processes performed by plastic suppliers, including plastic molding and plastic extrusion processes. Injection molding is the most common process in which plastic pellets are fed into a large pipe which is heated, crushed, and melted. The liquid is then forced through a nozzle and poured into a mold and allowed to cool in the proper shape while pressure is applied to hold the plastic in place. This form of plastic production led to everyday items such as household containers, crown caps, one-piece chairs and tables, and mechanical gears.