What are engineering plastics?
Engineering plastics is a kind of high-performance polymer materials which can be used as structural materials to withstand mechanical stress in a wide temperature range and in a harsher chemical and physical environment. It has good mechanical properties and dimensional stability, and can maintain its excellent performance at high and low temperatures. It can be used as engineering structural parts.
Engineering plastics differ from commodity plastics because they are always used as parts, never packaging or containers. These plastics normally are not available to the public and frequently are available only to manufacturers in raw material form in order to be melted and molded into end products.
Polycarbonate（PC） is one of the most commonly used engineering plastics because of its strength. Its properties also make this plastic easy to color. Often compared to the durability of metals, this thermoplastic has found its widest use in the technology field, where it is used in the shells of computers, digital versatile disc (DVD) players, televisions and more. In addition to these products, this plastic also is used in things such as safety light covers, motorcycle helmets and airplane cockpit glass.
Polyamide (PA) is another popular form of engineering plastics. These plastics' properties actually have a stronger resemblance to metal's properties than to those of polycarbonate. This is obvious because it is one of the most commonly used plastics in the automobile industry. Its toughness and ease of production have helped it be used in place of metal in automobile bumpers, fan blades, dashboards and a variety of valves.
Polyformaldehyde (POM) has been nicknamed "super steel" for its incredible strength and ability for precision. Unlike the other engineering plastics, this has the ability to be used in sensitive products such as mechanical gears and instruments. Sprinkling machines also commonly employ this plastic in order to create a lightweight, exact system.
Thermoplastic polyester (PBT) traditionally is thought of as part of the garment industry, but its chemical makeup is great for electronics. Its low glass transition temperature makes it perfect for jobs that require a high insulation rate, such as the kickback plate of televisions, automobile section boards and ignition coils. Tempering this plastic takes more work and precision, but the results are savored by many producers.
Polyphenylene (PPO) is renowned throughout plastic process engineering for its high temperature threshold. Heat generating products such as washing machines, hair dryers, coffee makers and ovenware all utilize this plastic. It toughness ensures that it will not melt during repeated usage.
The development of engineering plastics has reached a highly mature level. It is not only widely used in daily life, but also widely used in more and more high-end industries. It is highly recognized by the industry and provides new development possibilities for various upmarket applications.
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