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[Chemical Knowledge]：Demystifying the production process of plastic and understanding the true face of plastic

Read： 151 Time：17months ago Source：Transform the World with Simplicity

Plastic is a kind of man-made material, its main component is by natural gas, oil and other hydrocarbon compounds after cracking, polymerization and other chemical changes obtained by the polymer compound. The production process of plastics needs to go through the extraction, processing, molding and other links of raw materials. Below we will introduce the production process of plastics in detail.

need to prepare the raw materials. Because the composition of the plastic is relatively single, the raw materials needed to make the plastic are relatively single. Oil is the main raw material for making plastics, and natural gas is also one of the commonly used raw materials.

The raw material then needs to be processed. The processing process can be divided into two processes: cracking and polymerization. Cracking process refers to the process of cracking hydrocarbon compounds such as crude oil and natural gas into hydrocarbon monomers. The polymerization process refers to the process in which the hydrocarbon monomer obtained by cracking is chemically reacted to form a chain or network polymer compound.

Next, molding needs to be performed. Molding refers to the process of processing polymerized polymer compounds into plastic products. Molding generally adopts extrusion, injection molding, blow molding, calendering and other methods. In the molding process, it is necessary to carry out the corresponding molding process according to different plastic types and different product requirements. At the same time, it is also necessary to control the temperature, pressure and other conditions in the molding process to ensure the quality of the product.

Finally, subsequent processing is required after the molding is completed. The follow-up treatment includes the initial removal of moisture in the finished product, polishing, polishing and other links to make the plastic products smoother and more beautiful. In addition, for some special plastic products, welding, splicing, spraying and other processing are required to ensure the service life and safety of the product. The production process of

plastics is summarized as above, and the role of plastics in our lives is becoming more and more important. However, as people pay more attention to environmental protection, more and more people begin to pay attention to the environmental protection of plastic products. In fact, different plastic products have different impacts on the environment, and the environmental protection of plastics is therefore different. Therefore, when selecting and using plastic products, it is necessary to fully consider their environmental protection and safety, especially to avoid adverse effects on the natural environment.

plastic is one of the common man-made materials in life. It is very important for us to better use and protect the environment to master its production process and environmental protection characteristics.

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