Material Construction
Plastic is a high molecular compound polymerized from monomers through addition or condensation polymerization, commonly known as plastic or resin. It can freely alter its composition and shape, and is composed of synthetic resin along with additives such as fillers, plasticizers, stabilizers, lubricants, and colorants. The main component of plastic is resin. The term "resin" originates from the lipids secreted by animals and plants, such as rosin and shellac. Resin refers to the high molecular compound that has not yet been mixed with various additives. Resin accounts for approximately 40% to 100% of the total weight of plastic. The fundamental properties of plastic are primarily determined by the nature of the resin, but additives also play a significant role. Some plastics consist almost entirely of synthetic resin with little or no additives, such as organic glass and polystyrene.