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[Chemical Knowledge]：Uncovering plastic raw materials: where do they come from?

Read： 436 Time：18months ago Source：Transform the World with Simplicity

Types of
1. Sources
plastic raw materials refer to various raw materials used to produce plastic products, usually including polymer compounds, additives and other components. Common plastic raw materials include the following:

1. Petroleum: Petroleum is an important source of manufacturing plastics, and its petroleum derivatives such as ethylene, propylene, butadiene, etc. are the main raw materials for plastic production.

2. Coal: Benzene and toluene produced in the coal chemical industry are important sources of synthetic resin and synthetic rubber raw materials.

3. plants: starch, wood, coconut shell and other natural plants can also be used to produce biodegradable plastics and other polymer materials.

2. production process

The basic process of plastic raw material production is divided into the following steps:

1. Petroleum processing: converting petroleum raw materials into plastic raw materials such as ethylene and propylene;

2. Polymerization: polymerizing monomers (such as ethylene) into high molecular compounds under the action of catalysts;

3. Post-processing: adjusting its physical properties by adding additives, such as their hardness, strength, transparency, etc.

3. composition characteristics

plastic raw materials are mainly composed of macromolecular compounds, usually composed of carbon, hydrogen, oxygen and other elements. Based on different synthesis processes and formulations, different types of plastic raw materials have specific compositions and properties, such as hardness, strength, plasticity, transparency, etc.

To sum up, there are a wide range of sources and types of plastic raw materials, from coal, oil to plants, which can be used to produce plastics. Plastic raw materials have undergone petroleum processing, polymerization and post-processing steps in the manufacturing process, so that they can be formed and achieve the desired results. The composition and characteristics of plastic raw materials are different. According to different factors of demand, such as strength, hardness, transparency, etc., plastic raw materials of different components can be adjusted to meet different industrial needs.