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The main components and representative characteristics of conductive plastics
Time: 2018-08-30 12:10 Author: admin Hits: Times
The composition of conductive plastic and synthetic resin is the most important component of plastic. The content of plastic is generally 40%-100%. Because the content of resin is large, its performance often determines the performance of plastic, so people often treat resin as plastic. Synonym.
For example, PVC resin and PVC plastic, phenolic resin and phenolic plastic are mixed together. In fact, resin and plastic are two different concepts. Resin is a raw raw polymer. It is not only used in plastics, but also in paints, adhesives and synthetic fibers.
Plasticizers can improve the plasticity and softness of plastics, reduce brittleness, and make plastics easier to process. Plasticizers are generally mixed with resin, non-toxic, odorless, light, and high-boiling organic compounds with high thermal stability. The most commonly used is diphthalate.
In order to prevent synthetic resin from being decomposed and damaged by light and heat during processing and use, in order to extend the service life, stabilizers should be added to plastics. Commonly used as stearates, epoxy resins, etc. The amount of stabilizer is generally 0.3-0.5%. Plastic colorants can make plastics have a variety of bright and beautiful colors. Organic dyes and inorganic pigments are often used as colorants. Synthetic resins are mostly white, translucent or colorless and transparent. In industrial production, colorants are often used to increase the color of plastic products.
The role of the lubricant is to prevent the plastic from sticking to the metal mold during molding, making the plastic surface smooth and beautiful. Stearic acid and its calcium and magnesium salts are commonly used lubricants. Prevent the plastic from being heated and oxidized when heated or used at high temperature, which will make the plastic yellow and crack.
In addition to the above additives, flame retardants, foaming agents, antistatic agents, conductive agents, magnetic agents and compatibilizers can be added to plastics. Meet different usage requirements. Plastic is a very good insulator, so it is easy to carry static electricity. Antistatic agents can make plastics conduct electricity gently to the medium, thereby preventing the accumulation of static electricity on the product.
The advantage of conductive plastic is that most plastics have strong corrosion resistance and do not react with acids or alkalis. The cost of plastic manufacturing is very low. Durable, waterproof and lightweight. Easy to shape into different shapes. It's a good insulator. Plastic can be used to make fuel oil and fuel oil, which can reduce the consumption of crude oil.