![]() ![]() Its carbon fibre reinforcement lends the material a high level of rigidity and creep strength. At this point, the polymer is vacuum-dried at 100 degrees Celsius for 24 hours.PEEK CF 30 is a 30% carbon filled PEEK material that is manufactured by Ensinger under the tradename TECAPEEK CF30 black. Care must be taken when cleaning the polymer to make sure that solvent and inorganic salt are totally removed. The polymer is refluxed with water and subjected to Soxhlet extraction using methanol. Now, the reaction is left to cool at room temperature and the polymer is produced by precipitating from water. With this, the temperature can be increased to 180-200 degrees Celsius. The toluene is as well removed at this point. Following the removal of the water, the temperature should be increased to 110-130 degrees Celsius for the next 15 minutes. After this, the mixture should be heated under reflux for 20 minutes between 80 to 110 degrees Celsius.Īzeotropic distillation is then used to remove the water content produced during the phenate’s synthesis. This procedure must be carried out with steady stirring in a nitrogen environment. Then, the flask is put in a microwave device with a 700W maximum power output and 2455 MHz. Toluene is used for the removal of water. The needed components are 1.31 gram of 4,4’- difluorobenzophenone, 0.66gram of hydroquinone, and 1.24gram of K 2 CO 3, which has to be poured into a mixture of 15 ml solvents and 35ml toluene. This procedure is carried out in a three-necked flask equipped with a Dean-Stark trap, condenser, nitrogen inlet, and mechanical stirrer. It can be made by nucleophilically substituting hydroquinone into 4,4’-difluorobenzophenone in the presence of anhydrous potassium carbonate while being exposed to microwave radiation to manufacture a good yield. PEEK is insoluble, which necessitates precise reaction conditions during its synthesis. The most common technique used to produce PEEK is by allowing bisphenolate to react with difluorobenzophenone. Polyether Ether Ketone (PEEK) can be produced using several industrial techniques. Relative thermal index – mechanical w/ impact Relative thermal index – mechanical w/o impact Low abrasion at the counterpart surface of soft metalĭeflection temperature, 1.8MPa unannealed High mechanical strength, stiffness, and creep resistance Good dimensional stability at high temperature However, it’s very expensive, hence why some industries use alternative polymers and techniques like PTFE machining techniques. Quite a number of industries, including aerospace, automotive, and chemical processing industries, take advantage of PEEK material properties. It is a fluoropolymer alternative that is highly durable, especially in demanding applications. 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.
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