Polyetheretherketone composites

Ballmann, A., et al., Surface Treatment of Polyetheretherketone Composite by Plasma... 

Dyson IN, Kinloch AJ, Okada A, The interlaminar failure behaviour of carbon-fiber polyetheretherketone composites. Composites, 25(3), 189-196, 1994. 

Y-X. Lin, C. Gao, and M. Chen. "Thermomechanical properties and tribological behaviour of CaC03 whisker-reinforced polyetheretherketone composites." Proc. IMechE Vol. 223 Part J /. Engineering Tribology, pp. 1013-1018, 2009. 

Q. Xue, Q. Wang (1997) Wear mechanisms of polyetheretherketone composites filled with various kinds of SiC, Wear 213, 54. 

Peng X, Ma H, Zeng Q and Lei Y, Tribological behavior of inorganic nanoparticulates and polytetrafluoroethylene filled polyetheretherketone composites , Tribology 2004 24(3) 240 3 (in Chinese). 

Polyetheretherketone (PEEK) fibers electrical properties of, 23 718 properties of, 20 199t sulfonation of, 23 717 PEEK-based composites, 26 764 Peel-apart color films, 19 286 Peel-apart film(s), 19 274, 281, 282, 299, 314... 

Fig. 6.9. Normalized fracture toughness, (Kc - AKQ)/K. of short glass fiber-thermoplastics injection molded composites as a function of reinforcing effectiveness parameter, ft (O) polyetheretherketone (PEEK) matrix (K = 6.5 MPa m) (A) polytetrafluoroethylene (PTFE) matrix (K = 1.9 MPaym).

The model PBZT/ABPBI molecular composite system is limited since the rod and the matrix do not possess glass transition temperatures for subsequent post form consolidation. In an effort to improve the processability for molecular composites, thermoplastics were used as the host matrix. Processing from acidic solvents requires the thermoplastic host to be soluble and stable in meth-anesulfonic add. Thermoplastic matrices were investigated including both amorphous and semicrystalline nylons [71,72], polyphenylquinoxaline (PPQ) [73] and polyetheretherketone (PEEK) [74], Table 5 shows the mechanical properties obtained for various processed PBZT thermoplastic molecular composite systems. As an example, the PBZT/Nylon systems showed 50-300% improvement over uniaxially aligned chopped fiber composite of comparable compositions. However, the thermally-induced phase separation during consol-... 

Engineering thermoplastics have also been used in preimpregnated constructions. The thermoplastic is thoroughly dispersed as a continuous phase in glass, other resins, carbon fibers (qv), or other reinforcement. Articles can be produced from these constructions using thermoforming techniques. For example, the aerospace industry uses polyetheretherketone (PEEK) in woven carbon-fiber tapes (26). Experimental uses of other composite constructions have been reported (27) (see also COMPOSITE MATERIALS, POLYMER-MATRIX). 

Thermoplastic matrix composites are generally employed where high-volume and economic considerations exist such as in the automotive and decorative paneling industries. Thermoplastic resin-based composites range from high-priced polyimide, polyethersul-fone, and polyetheretherketone to the more affordable nylon, acetal, and polycarbonate resins. Practically all thermoplastics are available in glass-reinforced grades. 

Galvanic corrosion of polyacrylnitrile (PAN) and pitch-based short carbon fibers in polyetheretherketone (PEEK) composites were studied by Gebhard et al. [40]. Galvanic corrosion of carbon-fiber compounds can occur in contact with a steel electrode. The effects ranged from initial breakdown and cracking, to complete dissolution. 

Polyetheretherketones (PEEK) have excellent properties for use in advanced polymer composites, including low flammability, low smoke and toxic gas emission, and broad chemical and solvent resistance. PEEK... 

Hartness JT, An evaluation of polyetheretherketone matrix composites fabricated from unidirectional prepreg tape, SAMPE J, 26-31, Sep/Oct 1984. 

Semadeni M, Zerlik H, Rossini P, Meyer J, Wintermantel E, High fibre volume fraction injection moulding of carbon fibre reinforced polyetheretherketone (PEEK) in order to raise mechanical properties, Polym Polym Composites, 6(5), 279-286, 1998. 

Ye L, Daghyani HR, Sliding friction and wear of carbon fibre polyetheretherketone comingled yam composites against steel, J Mater Sci Lett, 15(17), 1536-1538, 1996. 

During last years chemist-synthesists and technologists were interested in aromatic polyetherketones (PEK) and polyetheretherketones (PEEK). The main feature in the composition of aromatic thermoplastic polyethers - polyetherketones and polyetheretherketones is the presenee of one ether and one ketone group and two simple and one ketone group in their elementary bonds [1-3] ... 

The major drawback of carbon-fiber thermoplastic composites is their low-temperature resistance.PH ] However, recently developed thermoplastic polymers have much higher temperature resistance and are being considered as matrices for continuous-fiber composites. These polymers include polyethersulfone (PES), polyetheretherketone (PEEK) and polyphenyl sulfide (PPS). 1 1 PEEK in particular has excellent potential since it is less brittle than the epoxies and provides a tougher composite (see Table 9.5 below). 

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