Industry knowledge of plastic letters cutting machine：

Plastic is a polymer compound (macromolecules) which is polymerized by addition polymerization or polycondensation reaction. It can be freely changed in composition and shape. It is composed of synthetic resin and filler, plasticizer, stabilizer, lubricant and color. Additives such as materials.

The main component of plastic is resin. The resin refers to a polymer compound that has not been mixed with various additives. The term resin was originally named after the lipids secreted by plants and animals, such as rosin and shellac. Resin accounts for about 40% to 100% of the total weight of the 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 or without additives, such as plexiglass, polystyrene, and the like.

Plastic is an important organic synthetic polymer material and 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 scientifically use plastic products, but also facilitate the classification and recycling of plastics, and effectively control and reduce ""White pollution"".