Plastic products can be found everywhere in our lives, and in some ways, humans can’t live without plastic. Similarly, in the process of vacuum forming production, plastic has an important position.Plastic is the basic material. Without these basic materials, we would not be able to produce a lots of products in our life. This shows that plastics have a wide range of usefulness. So what exactly is plastic?
Definition of Plastics-
Plastic is a polymer compound made of monomer as raw material, polymerized by addition or condensation reaction, its resistance to deformation is medium and between fiber and rubber, which composed of synthetic resins and fillers, plasticizers, stabilizers, lubricants, colorants and other additives. Plastic material is defined as a synthetic or natural polymer, can be arbitrarily pinched into a variety of shapes and finally can stay the shape of the material or plastic material products.
The main component of plastic–
The main component of plastic is resin. Resin is a polymer compound that has not been mixed with various additives. The name resin was originally derived from the lipids secreted by plants and animals, such as rosin and shellac.The weight of resin accounts for about 40% to 100% of the total weight of plastic. The basic properties of plastics are mainly determined by the nature of the resin, but additives also play an important role. Some plastics are basically composed of synthetic resins with no or little additives.
Names and uses of various materials-
The role of plastic classification–
Plastic is an important organic synthetic polymer material, which is widely used. However, the “white pollution” caused by waste plastics is becoming more and more serious.If we can understand the composition and classification of plastics in detail, it will not only help us to use plastic products scientifically, but also benefit the classification of plastic recycling, and effectively control and reduce “white pollution”.
Here we focus on the definition and types of plastics, and in next week’s article we will introduce the main properties of plastics and their biodegradation methods.
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