![]() Hildebrand solubility parameter of a liquid is a numerical digit thatĭepicts the solvency behavior of that specific liquid. Is reported to be 1.320 for maximum achievable crystallization.Īmorphous regions of polymer are more prone to chemical and thermalĬommon organic solvents were selected forĪnalysis on the basis of Hildebrand solubility criteria and also on theīasis of likelihood of exposure during commercial applications. Polymer is 1.265 for amorphous form while for semicrystalline polymer it Most commonly used industrial grades of PEEK have a crystalline content Glass transition temperature (Tg =143AdegC). Is known for comparatively higher melting temperature (343AdegC) and (crystalline) and fraction of disordered (amorphous) arrangements. Molecules of semicrystalline polymer possess fraction of ordered Presence of aprotic solvents like diphenylsulfone at 300 AdegC asĪmorphous PEEK lacks ordered structure of molecules, whereas the The polymer is commonly obtained by the reaction ofĤ'4-difluorobenzophenone with disodium salt of hydroquinone in the Rings in its monomer with two functional groups ether (R-O-R) and Chemical structure of PEEK contains three aromatic ![]() Trauma and spine implants and as a material of construction of Manufacturing of aircraft and turbine blades, pump and compressor parts,Īutomobile components, as insulation in wire coating, in orthopedic, Major applications of the polymer include its use in To its high strength to weight ratio, resistance to chemical and thermalĪttacks, it is widely used in process, electronics and biomedical PEEK is one of the most commonly used specialty thermoplastic. Keywords: PEEK, Plasticization, Crystallinity, Organic Solvents. Prolonged interaction of PEEK with these solvents requires someĪdditional treatment to make PEEK sustainable in these harsh Stability of the polymer based on the experimental results. Chloroform, THF, toluene and acetone affects The polymer remains resistant to thermal attack after exposure to To be altered by toluene, benzene and tetrahydrofuran. Chemical structure of the polymer was seen (FTIR) Spectroscopy, Thermogravimetric Analysis (TGA) and Differential Solvents for 2 months were analyzed through Fourier Transform Infra -Red ![]() Organic solvents were selected based on Hildebrand solubility parameterįor stability analysis of the polymer. Surgical components, seal valves and various components of pump.Ĭhemical and thermal behavior of amorphous PEEK in different chemicalĮnvironments has been investigated in the present study. Thermoplastics for high performance applications such as biomedical Summary: Poly ether ether ketone (PEEK) is one of the most promising ![]() Retrieved from īyline: Aqeel Ahmad, Tanveer Iqbal, Saima Yasin, Rabia Hanif, Sheema
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