Several catagory of plastic raw materials

Plastic raw materials is polymer or macromolecules, it also commonly known as plastic or resin. The so-called plastic raw materials is one kind of synthetic resin, the shape is similar to natural resins of pine resin, but it is synthesized by chemically force, so it is known as plastic.

According to various using, plastics are usually divided into general plastics, engineering plastics and special plastics.



General plastics generally refers to the large production, wide use, good forming and cheap. There are five major varieties of general plastics, namely, polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS) and acrylonitrile-butadiene-styrene copolymer (ABS). These five plastic occupies most of the plastic materials used, the rest can be categorized into special plastic variety, such as PPS, PPO, PA, PC, POM etc, they are rarely in daily life products and mainly used in the engineering industry, high-end fields such as science and technology for national defense, such as automotive, aerospace, construction, communications and other fields. Classification of plastics according to its plasticity can be divided into thermoplastic and thermosetting plastics. Typically, thermoplastic plastic products can be recycled, but thermosetting plastics cannot. According to the optical properties of plastic, it can be divided into transparent, translucent and opaque material, and PS, PMMA, AS, PC belongs to transparent plastic, and most other plastic are opaque plastic.

Engineering plastics refers to be able to withstand forces and has good mechanical properties, high temperature resistance, low temperature resistance and good dimensional stability, as well as can be used as structural plastics, such as polysulfone and polyamide. Engineering plastics can be divided into general and special engineering plastics. General engineering plastics includes polyamide, polyacetal, polycarbonate and modified polyphenylene ether thermoplastic polyester, ultra high molecular weight polyethylene, methyl pentene polymer, vinyl alcohol copolymers. Special engineering plastics has crosslinking of non-cross-linked. Crosslinking are double maleamic polyurethane, poly-triazine, crosslinked polyimide, heat-resistant epoxy resin and so on. Non-cross-linked are polysulfone, PES, polyphenylene ether, polyimide, polyether ether ketone (PEEK), etc.

Special plastics has special function and can be used for special applications such as aviation, aerospace. For example, fluorine plastic and silicone has outstanding resistance to high temperature, lubrication and other special functions. It enhances plastics and foams with high strength, high buffering and other special properties, which belong to the category of specialty plastics. More information about plastic raw materials, please click here. Hope this is helpful to you, thanks!
Source: https://www.okchem.com/news/several-catagory-plastic-raw-materials.html