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[Chemical Knowledge]：What is plastic made of? Exploring the origin and application of plastics

Read： 804 Time：17months ago Source：Transform the World with Simplicity

What is plastic? It is a synthetic polymer material made from raw materials such as oil, natural gas, coal and other carbohydrates. Plastic became popular in the 1950 s and has now become one of the indispensable items in life. Whether it is people's daily use of clothing, shoes and hats, daily necessities, or all walks of life construction, electronics, transportation, plastics have ever-changing applications. The raw materials for the manufacture of

plastics are mainly hydrocarbons such as oil, natural gas and coal. These raw materials refining ethylene, propylene, styrene and other basic components, and then through the polymerization reaction to produce high polymer, you can get a variety of plastics. Plastics can be divided into two kinds of thermoplastics and thermosetting plastics. Thermoplastics can be repeatedly heated to change the molding, while thermosetting plastics can not.

safety, lightness, durability, high degree of freedom are the main advantages of plastic products, they are widely used in medical, aviation, defense, transportation and other fields. For the home, some of the necessary home appliances, stationery, furniture, etc. are derived from plastic. Not only that, plastic is also the raw material for the production of many environmentally friendly products, such as photovoltaic cells and wind energy facilities.

However, due to the high consumption and insufficient recycling of plastics, there is the importance of identifying plastics. There are many types of plastics, common PP (polypropylene), PE (polyethylene), PVC (polyvinyl chloride), etc., they all have their own characteristics and uses. In addition, plastics also have many problems in environmental protection, especially the disposal and recycling of plastic waste. In daily life, we should minimize the use of single-use plastic products and choose sustainable materials that can be recycled, such as glass, metal, wood, etc. Although

plastics have many advantages, we also need to pay attention to environmental protection and garbage classification. Only by making full use of the advantages of plastic and promoting sustainable consumption can we use it as a beneficial material and make it truly useful for us.

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