The Elements of Plastics

The plastics that we typically use is not a pure material. สายรัดกล่อง is created by the preparing of numerous supplies, in which the substantial polymer (or artificial resin) is its major element. In addition, in get to improve the overall performance of plastics, a selection of auxiliary materials ought to also be additional in the polymer, this sort of as fillers, plasticizers, lubricants, stabilizers, coloring brokers, and so on, so as to make the plastics have great functionality.

1st, synthetic resin
Artificial resin is the principal part of plastics. The basic articles of synthetic resin in plastics is from forty% to 100%. Since of its big material, the mother nature of synthetic resin often determines the nature of the plastics, so folks frequently take resin as a synonym of plastics. In reality, resin and plastics are two diverse ideas. Resin is a uncooked polymer which has not been processed. Whilst for most plastics, in addition to the resin as its main element, there are also some other substances.

Second, fillers
Fillers can enhance the toughness and heat-resistant top quality of the plastics, as properly as decrease the value. For example, adding wood flour into phenolic resin can greatly minimize the value, which can make the phenolic plastic as one particular of the most inexpensive plastics. At the very same time, it can also substantially enhance the mechanical energy. Fillers can be divided into natural and organic filler and inorganic filler, with the former as wooden flour, rags, paper and all types of textile fibers, and the latter as glass fibers, diatomaceous earth, asbestos, and carbon black.

Third, plasticizers
Plasticizers can boost the plasticity and flexibility of the plastics, reduce brittleness, and make the plastics easy to be processed and molded. Plasticizers are generally organic compounds with large boiling position, miscible with the resin, non-harmful, odorless, and secure to gentle and heat. The frequently utilised plasticizers consist of phthalates, benzophenone, and so on.