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[Chemical Knowledge]：Plastics: from production to recycling

Read： 810 Time：17months ago Source：Transform the World with Simplicity

Plastic is a kind of plastic material made of synthetic resin and other additives. Because of its light weight, durability, easy molding and other characteristics, it is widely used in industry, agriculture and daily life. From production to application and existing problems, let's take a look at them together. The definition and type of

1. plastic

plastic is a polymer material composed of synthetic resin, plasticizer, filler, etc., usually made by thermoplastic or thermosetting process. According to different raw materials, plastics can be divided into polyethylene, polyvinyl chloride, polypropylene, polystyrene and other types. The production process of

2. plastics The production of

plastics usually includes the following steps: raw material pretreatment, melt processing, molding cooling, etc. The specific process is to mix and filter the raw materials first, then heat the raw materials to a molten state, and form the desired product shape by extrusion, injection molding, blow molding, etc. Finally, after cooling and processing, the finished plastic products are formed. The application of

3. plastics in life

plastic products have become essential items in modern industry, agriculture and people's daily life, such as daily tableware, containers, toys, agricultural utensils, etc., as well as parts, pipes, isolation materials in some industrial fields. The problems of

4. plastics

Although the application of plastics has brought convenience to our lives, there are also some problems, such as plastic pollution, microplastic pollution and the difficulty of plastic degradation. More and more plastic pollution poses a threat to the environment and ecology, and plastics that are difficult to degrade need more attention.

5. to explore the
of plastic recycling
In view of the environmental problems caused by plastics, the recycling of plastics has become an inevitable trend in today's society to promote green development. Recycling can reduce the pollution of the environment and alleviate the shortage of resources. At present, a large number of plastic products are recycled, such as plastic bottles, bags, etc., are used to produce accessories or unprocessed plastic products.

To sum up, although plastics bring convenience and practicality to people, there are also some problems, such as pollution and difficulty in degradation. We need to alleviate the pressure on the environment and resources by raising environmental awareness and strengthening the recycling of plastics.