The plastics that we usually use is not a pure material. It is manufactured by the planning of several supplies, in which the higher polymer (or artificial resin) is its principal part. In addition, in purchase to increase the performance of plastics, a range of auxiliary components ought to also be included in the polymer, this kind of as fillers, plasticizers, lubricants, stabilizers, coloring agents, and so on, so as to make the plastics have very good performance.
Initial, artificial resin
Artificial resin is the major ingredient of plastics. The standard material of synthetic resin in plastics is from 40% to 100%. Since of its massive material, the character of artificial resin frequently decides the character of the plastics, so folks typically consider resin as a synonym of plastics. In fact, resin and plastics are two various ideas. สายรัดกล่อง is a uncooked polymer which has not been processed. While for most plastics, aside from the resin as its principal component, there are also some other substances.
Fillers can enhance the power and heat-resistant top quality of the plastics, as properly as reduce the cost. For instance, incorporating wood flour into phenolic resin can greatly decrease the cost, which can make the phenolic plastic as one of the least expensive plastics. At the same time, it can also drastically increase the mechanical power. Fillers can be divided into natural and organic filler and inorganic filler, with the previous as wood flour, rags, paper and all kinds of textile fibers, and the latter as glass fibers, diatomaceous earth, asbestos, and carbon black.
Plasticizers can enhance the plasticity and adaptability of the plastics, minimize brittleness, and make the plastics simple to be processed and molded. Plasticizers are usually natural compounds with substantial boiling position, miscible with the resin, non-harmful, odorless, and secure to light and warmth. The commonly employed plasticizers include phthalates, benzophenone, and so on.