Plastic is not a pure substance we normally use, it is formulated from many materials made. Wherein the polymer (or synthetic resin) is the main component of plastic, in addition, in order to improve the performance of plastics, but also to add various auxiliary materials such as fillers, plasticizers, lubricants, stabilizers in the polymer, coloring agents, in order to become a good performance plastics.
Synthetic resin Plastic plate
Synthetic resin is the main component of plastic, which is the plastic content is generally 40% to 100%. Due to the large content and nature of the resin often determines the nature of the plastic, so people often put plastic resin as a synonym. Such as polyvinyl chloride resin and PVC, phenolic resins and phenolic confused. In fact, resin and plastic are two different concepts. Original polymer resin is a crude, it is not only used to make plastics, but also paint, adhesives and synthetic raw materials. In addition to very small part of the plastic resin containing 100 percent, the vast majority of plastic, in addition to the main component of the resin, but also need to add other substances.
Plastic plate packing
Filler called filler, which can improve the strength and heat resistance of plastics, and lower costs. For example, wood flour was added after the phenolic resin can greatly reduce costs, become one of the cheapest Bakelite plastics, as well as significantly improve the mechanical strength. The filler may be divided into two types of organic fillers and inorganic fillers, such as wood flour former, rags, paper and various textile fibers, such as glass fiber which, diatomaceous earth, asbestos, carbon black and the like.
Plastic plate plasticizer
Plasticizers increase the plastic plasticity and softness, reduce brittleness, easy to make plastic molding process. Plasticizers are generally miscible with the resin, non-toxic, odorless, light and heat stable, high-boiling organic compounds, the most commonly used phthalates. For example, the production of PVC, if adding more plasticizer can get soft PVC, if not increase or less plus plasticizer (amount <10%), it was hard PVC .
Plastic plate stabilizer
In order to prevent the synthetic resin by light and heat of decomposition and destruction, prolong life, to add a stabilizer in plastics processing and use. Commonly used are stearates, such as epoxy resin.
Plastic plate colorants
Plastic colorant can have a variety of bright, beautiful colors. Common organic dyes and inorganic pigments as colorants.
Lubricants Plastic plate
A lubricant is to prevent the plastic molding when the stick on the metal mold, while allowing the plastic surface is smooth and beautiful. Commonly used lubricants are stearic acid and calcium and magnesium salts and the like.
Plastic plate antioxidants
Prevent the plastic molding heated or heated at a high temperature oxidation during use, leaving the plastic yellow hair bifida
In addition to the above additives, the plastic may be added flame retardants, foaming agents, antistatic agents, to meet different requirements. More information, please visit: http://www.nblinhua.com.