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[Chemical Knowledge]：What is plastic and why is it an indispensable material in our lives?

Read： 692 Time：17months ago Source：Transform the World with Simplicity

With the rapid development of modernization, plastics have become one of the indispensable materials in people's lives. From simple disposable tableware to complex electronic devices and cars, plastic products are everywhere. So, what is plastic and why is it such an important material?
The most basic component of
plastics is a polymer compound, which is usually composed of relatively simple small molecule units. These units are linked by covalent bonds to form a long chain structure, so plastics are often referred to as polymers. The types of these polymers are very rich, but can be divided into two categories: thermoplastics and thermosets. Thermoplastics can be continuously processed into different shapes after heating, while thermosetting plastics cannot change their shape once processed.

plastics have a wide range of applications. In addition to the plastic bags, pens and mobile phones we use every day, plastics are also used in many important fields. In the pharmaceutical industry, plastic bags, pipes and bottles are common pharmaceutical packaging materials. In buildings, plastics are used in doors and windows, sun rooms, roofing waterproofing and other fields. In the automotive and aerospace fields, lightweight plastic products have been widely used. In electronic products, plastic products are widely used in wire and cable, mouse and monitoring instruments. Even in the clothing industry, some custom sports equipment also uses a good stretch of elastic plastic.

However, plastics also pose some environmental concerns. The plastic products we use daily are often impossible to be completely recycled and are often discarded at will, which brings serious environmental pollution problems. Plastic bags, disposable tableware, water bottles, etc. drifting in the ocean has become a unique landscape and a threat to the marine ecosystem. At the same time, toxic gases from the burning of plastics have become one of the main sources of air pollution.

In general, plastic is an indispensable material in today's society. Its development has brought convenience and efficiency, but it has also brought challenges to the environment. We need to reduce waste and pollution of plastic products as much as possible and move to greener and more recyclable items. At the same time, technology and government policies need to continuously promote the innovation and improvement of plastic products, reduce their impact on the environment, and make plastics a more sustainable material.

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