Some of the other items it’s used to make are bearings, pumps, piston parts, valves, compressor plates, and cable insulators. PEEK polymer is one of the few polymers that can be used in applications that require an ultra-high vacuum. While PEEK can come as a composite, fiberglass, or carbon fiber reinforcement, the unreinforced PEEK is known to provide the highest elongation and endurance of all grades of PEEK materials. At normal temperature, it totally dissolves in strong sulfuric acid. At high temperatures, halogens, strong acids, as well as some halogenated chemicals and aliphatic hydrocarbons all attack it. PEEK has a high level of resistance to aqueous and organic conditions, as well as thermal deterioration. According to the UL 94 standard flammability ratings, PEEK material has a V-0 rating as it does not produce much smoke and harmful gas when it’s exposed to flame. While it features a glass transition temperature of about 143 degrees Celsius, it has a melting point of 340 degrees Celsius, and the ability to be continually used at a temperature of 250 degrees Celsius. Standard PEEK polymers have a tensile strength that’s between the range of 90 to 100 MPa, and a Young modulus of 3.6 GPa. The crystallinity, as well as the mechanical and chemical structure of PEEK can be affected by the processing conditions used in making it. PEEK material, which is semi-crystalline, has strong mechanical and chemical resistance properties, making it suitable for high temperatures. PEEK, which is the most widely used and produced PAEK material on large scale, was first discovered in November 1978 before it was introduced into the market by Victrex PLC, formerly known as Imperial Chemical Industries (ICI) in the early 1980s. ![]() PEEK is a colorless organic thermoplastic material in the PAEK family, which consists of other plastic materials like PEK, PEEKK, PEKK, and PEKEKK.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |