Introduction to the characteristics of plastics

When we decide the material of manufacturing products, choose metal or plastic materials, there will be a variety of considerations, in addition to price factors, but also to understand the characteristics of metal and plastic, then what are the characteristics of plastic, what are the advantages and disadvantages?

(1) Advantages

① Most plastics have strong corrosion resistance and do not react with acids and alkalis.

Low plastic manufacturing cost.

③ Durable, waterproof, light weight.

④ It is easy to be processed into products of different shapes.

⑤ Good insulator.

(2) Disadvantages

When recycling waste plastics, classification is very difficult and economically uneconomical.

(2) Plastics are easy to burn and produce toxic gases when burned. For example, polystyrene combustion produces toluene, a small amount of this substance can lead to blindness, suction people have vomiting and other symptoms,PVC combustion will also produce hydrogen chloride toxic gas, in addition to combustion, is the high temperature environment, will lead to plastic decomposition of toxic components, such as benzene and so on.

Plastics are made from products refined from petroleum, and petroleum resources are limited.

Plastic buried in the ground for hundreds, thousands or even tens of thousands of years will not rot.

⑤ The heat resistance of plastics is poor and easy to age.

Due to the inability of plastic to degrade naturally, it has become the number one enemy of mankind and has also led to the tragic death of many animals. A large amount of plastic waste and Marine plastic is already a problem that human beings need to face together.