Manufacturing and characterization of polyether ether ketonemethyl. Abstract sulfonated poly ether ether ketone, speek nanocomposite membranes were prepared and their. Peek has a high tensile strength of about 105mpa, and high melting and degradation. Nucleophilic substitution process can be performed by causing the reaction of a dihydric phenol, such as hydroquinone, with a dihalobenzoid compound under the presence of a base resulting in ether. The saturation time of methylene chloride, 1,3dichloropropane, tetrahydrofuran, cyclopentanone, chlorobenzene, toluene, diethyl ketone, and ethylbenzene in amorphous peek films were found to range from hours to days depending on the level of polymersolvent interactions. Standard classification system for polyether ether ketone. Kleperis 1 1 institute of solid state physics, university of latvia, 8 kengaraga str. Pdf a modified johnsoncook jc model was proposed to describe the flow behaviour of polyetheretherketone peek with the consideration of coupled. Solventinduced crystallization of polyether ether ketone jennifer lynne mcpeak dissertation submitted to the faculty of the virginia polytechnic institute and state university in partial fulfillment of the requirements for the degree of doctor of philosophy in materials engineering science dr. An amorphous, catecholbased analogue of peek opeek has been prepared by a classical stepgrowth polymerization reaction between catechol and 4,4difluorobenzophenone and shown to be readily soluble in a range of organic solvents. Depending on the degree of sulfonation of the polymer, it may reduce its own dimensional and thermal stability 10. In this study, three derivatives of polyether ether ketone peek were prepared in suspension by nitration no2peek, reduction to the amino group nh2peek and. Corresponding authors a hoffmann institute of advanced materials, shenzhen polytechnic, 7098 liuxian blvd, nanshan district, shenzhen, china email. Meltelectrospinning of polyether ether ketone fibers to.
Polyether ether ketone peek is a highperformance engineering thermoplastic with excellent mechanical and thermal stability, which can undergo chemical modifications by attachment of functional groups to its aromatic rings, and by reactions in its carbonyl group. Novamem polyether ether ketone peek membranes exhibit outstanding resistance to almost any known organic solvent, as they consist of pure peek no sulfonation or similar. Pekk, structure 3 was produced commercially by dupont and polyether ketone ether. Herein, we report a novel soluble peek derivative containing. Lithium polymer electrolytes based on sulfonated poly. Growing environmental concerns including huge carbon emissions have prompted the need for minimal fuel consumption. Poly etheretherketone peek and poly etherketoneketone pekk offer excellent chemical resistance and good chemical and physical properties at high temperatures. Sulfonated polyether ketone ketone ionomers as proton exchange membranes steven swier, yong sung chun, jeffrey gasa, montgomery t. Pdf new polyether ether ketones and poly ether ether ketone ketone s were synthesized by polycondensation of each of the three bisphenols, viz. Sulfonated polyetheretherketone polymer membranes for. Polyether ether ketone peek is a highperformance semicrystalline thermoplastic polymer that falls into the engineering polymer family of polyaryl ether ketones or paeks. In comparison to pure polyether ether ketone peek, the sulfonation of this material to. Preparation and characterization of polyether ether.
Synthesis of a catecholbased polyether ether ketone o. Pdf toward the synthesis of functionalized poly ether ether. Peek can be processed by conventional methods such as injection molding, extrusion, compression molding etc. Sulfonated polyether ketone ketone ionomers as proton. Sulfonated polyetheretherketone polymer membranes for fuel cells j. Pdf preparation and characterization of polyether ether. Pdf poly ether ether ketone s and poly ether ether. Polyether ether ketone peek is a potential material for use as a separator due to its good heat resistance and chemical stability. Hydroxylated polyether ether ketone peekoh samples, with different degrees of functionalization, have been synthesized by. Peek polyetheretherketone chemical resistance chart. Solventinduced crystallization of polyether ether ketone. Speek causes a significant reduction in thermal stability.
The following two sections describe the operation ofthese two devices. Poly1,4phenyleneoxy1,4phenylenecarbonyl1,4phenylenecarbonyl. Formulation of a covalently bonded hydroxyapatite and poly. Herein, we develop a multifunctional micronanostructured surface presenting hydroxyapatite ha nanoflowers and nickel hydroxide nioh2 nanoparticles on peek implants. Physicochemical study of sulfonated polyether ether.
The linking group r between the functional groups consists of a. Multifunctional surface with enhanced angiogenesis for. Evaluation of crystallization kinetics of poly ether. Poly ether ether ketone is a semicrystalline, hightemperature up to 500 f engineering thermoplastic that is excellent for applications where thermal, chemical. Polyether ether ketone peek was synthesized with a good yield, by nucleophilic substitution reaction of 4,4difluorobenzophenone dfbp with hydroquinone hq in the presence of anhydrous potassium carbonate k2co3 under microwave mw irradiation. Weiss polymer science program and department of chemical engineering, university of connecticut, storrs, connecticut 0626936. The aromatic backbone helps maintain thermal and mechanical.
Cryogenic mechanical alloying of poly ether ether ketone. On the thermal processing and mechanical properties of 3d. Synthesis of poly ether ether ketone sulfonated membrane. Relative to other polymers, peek is highly resistant to most common solvents. The poly aryl ether ketones are used as matrices in advanced composites with high performance due to its high thermal stability, excellent. Polyetheretherketone an overview sciencedirect topics. Effect of annealing on the properties of polyether ether. Electrospun polyether ether ketone nanofibrous separator. Crystalline al2o3 modified porous polyaryl ether ketone. Peek market size polyether ether ketone industry report. The poly aryl ether ketone is used as matrices in advanced composites for high performance due to its excellent thermal and mechanical properties. Preparation and characterization of poly ether ether ketone. Surface modifications of polyether ether ketone via.
Peek polyether ether ketone membranes membrane disc. However, peek has inferior solubility, and is not easy to be prepared a porous separator. Poly ether ether ketone s and poly ether ether ketone ketone s containing cardo decahydronaphthalene groups. Polyether ether ketone peek is the most thoroughly studied, because it can easily be sulfonated into speek and the desired level of sulfonation can be controlled by varying the time and. On the thermal processing and mechanical properties of 3dprinted polyether ether ketone volume 9 issue 3 russell wang, kangjie cheng, rigoberto c. Polyether ether ketone peek is a biocompatible polymer, but the lack of angiogenesis makes the longterm osteogenic fixation of peek implants challenging, which has hampered their wider application in orthopedics.
Polyether ether ketone peek is a high performance semicrystalline engineering polymer that has been implemented across a range of industry sectors, including oil and gas, electronics, aerospace, automotive and medical. Aromatic polymers, including poly ether ether ketone, arise as alternatives due to the possibility of increasing its conductivity by sulfonation reaction. Semantic scholar extracted view of toward the synthesis of functionalized poly ether ether ketone s. Pdf a constitutive model of polyetheretherketone peek. In this study, three derivatives of polyether ether ketone peek were prepared in suspension by nitration no2peek, reduction to the amino group. The global polyether ether ketone market size was estimated at usd 684. Polyaryletherketone paek is a family of semicrystalline thermoplastics with hightemperature stability and high mechanical strength whose molecular backbone contains alternately ketone rcor and ether groups ror.
The effects of sulfonated polyether ether ketone ion. Polyether ether ketone polyether ether ketone peek is a tough, semicrystalline highperformance thermoplastic polymer with good thermal and mechanical properties. Experimental equipment two pieces ofequipment have been designed as a part ofthis research, a cryogenic vibratory ball mill and a laboratory scale selective laser sintering unit. Pek polyether ketone peek polyether ether ketone pekk polyether ketone ketone polyethyleneketone 1 paeks are abbreviated in terms of e and k where e stands for ether and k for ketone and the order of the letters represents the sequence of ether and ketone groups, respectively, in the repeat units of the polymer. Polyether ether ketone peek is an excellent but expensive polymeric material, which is particularly useful to protect metallic surfaces in.
Previous papers on resorbable polyllactidecod,llactide pldlla cages in spinal fusion have failed to report adequately on patientcentred clinical outcome measures. This is the first randomized prospective study that assesses clinical outcome of pldlla cage compared with a poly. Department of materials engineering, school of engineering, the university of tokyo, 731 hongo, bunkyoku, tokyo, 18656, japan. Copolymers with ppeek have been investigated, including an amorphous 50. Thermal decomposition mechanism of poly ether ether. Evaluation of decomposition kinetics of poly etherether ketone by thermogravimetric analysis first decomposition step, random chain scission of the ether and ketone bonds is believed to be the main mechanism, with phenol being the predominant degradation product with smaller amounts of other compounds like benzene and dibenzofuran. Synthesis and characterization of poly ether ether ketone. Posterior lumbar interbody fusion using non resorbable. Mechanical properties of sulfonated poly ether ether. Evaluation of decomposition kinetics of poly etherether. Surface modifications of polyether ether ketone via polymerization methodscurrent status and future prospects by monika flejszar and pawel chmielarz department of physical chemistry, faculty of chemistry, rzeszow university of technology, al.
391 433 403 955 896 1153 1098 78 1194 1251 850 1057 1378 965 378 1473 231 1079 151 60 969 412 1204 401 898 913 1017 353 1006 366 87 687 514 582 1232 1143 1054 403 217 1041 1384 1294 137 907 312 988 584 943