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[Chemical Knowledge]：What is plastic? A beginner's guide

Read： 330 Time：17months ago Source：Transform the World with Simplicity

With the continuous development of modern technology, plastics have become an indispensable part of our lives. From computer cases to food packaging, from medical devices to car parts, plastics are everywhere. However, many people's understanding of plastic is limited to "buying a plastic toy", but in fact, plastic is a diverse material with many different types, uses and environmental impacts. This article will introduce you to all of these aspects. What is

plastic?

plastic is a material made of polymer compounds, which are usually made of elements such as carbon, hydrogen and oxygen. They can be machined into a variety of shapes, making them ideal for a variety of different applications.
Types of
Plastics

plastics can be classified according to raw materials, chemical structures and physical properties. Here are the four most common types of plastic:

Polyethylene (PE)-mainly used to make bottles and bags, polyethylene is often used to package items such as food and medicine because it is relatively cheap and transparent.

2. Polypropylene (PP)-commonly used in the manufacture of automotive parts, medical devices and fiber products, such as carpets and ropes.

3. Polyvinyl chloride (PVC)-commonly used in water supply pipes and wire insulation, etc., but the chemicals in PVS have a negative impact on the environment, so its use is gradually decreasing.

4. Polyester (PET)-mainly used to make bottles, especially beverage bottles, because they are light, transparent and easy to recycle. The use of

plastics

different types of plastics have different physical and chemical properties, which makes them suitable for a variety of different applications. Here are some common plastic uses:

1. Packaging-Plastic products are an ideal way to process and package food and medicine.

2. Electronic products-Plastic housings can protect electronic devices from moisture and dirt, and provide appearance and design.

3. Automotive-A large number of plastic parts can reduce the weight of the car, thereby improving fuel efficiency.

4. Medical equipment-plastic materials have good antibacterial properties and can be used to make gloves, syringes and medical equipment.

above is only a part of the application of plastics.

the impact of plastics on the environment

Although plastics are a very convenient material, they also have a negative impact on the environment. Since plastics do not degrade well, the long-term accumulation of plastics poses a serious threat to the oceans and fish. In order to reduce the impact on the environment, we can take the following measures:

1. Recycling plastic products-Reduce environmental pollution by recycling plastic products.

2. Use sustainable materials-The use of sustainable plastics, such as biodegradable materials, can reduce the negative impact on the environment.

In this fast-moving world, plastics have become an important part of our lives. Understanding the types, uses and environmental impact of plastics will help us make better use of this material and reduce our environmental impact.