Results 201 to 210 of about 31,941 (245)
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Evaluation of process parameters for poly(ether ether ketone) to poly(ether ether ketone) friction welded joint

Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2021
Poly(ether ether ketone) is a semicrystalline organic polymer. It has widely been used as high-performance engineering plastic owing to its high melting point (343 °C), excellent mechanical strength, and outstanding chemical resistance. Therefore, poly(ether ether ketone) and its composites have shown lots of applications in aerospace and medical ...
Sangli Senkathir   +2 more
openaire   +1 more source

Anomalous diffusion in poly-ether-ether-ketone

Chemical Engineering Science, 1994
Poly-ether-ether-ketone (PEEK) is a thermoplastic tough polymer used as a matrix for advanced composite materials in aeronautic applications. The investigation of its resistance to humid environment and to exposure to organic and chlorinated solvents is extremely important.
M. A. Del Nobile   +3 more
openaire   +2 more sources

A Study of Blends of Poly(ether ether ketone ketone) and Poly(ether sulphone): Effect of the Addition of Poly(ether ether ketone) Oligomer

Polymers and Polymer Composites, 1996
The thermal and viscoelastic behaviour and mechanical properties of blends of poly(ether ether ketone ketone) (PEEKK) with poly(ether sulphone) (PES) have been investigated. Additionally, poly(ether ether ketone) (PEEK) oligomer was added as the third component to the above blend in order to improve its compatibility and mechanical properties.
Mitsuhiro Shibata   +2 more
openaire   +1 more source

Thermoreversible Gelation of Poly(ether ether ketone)

ACS Macro Letters, 2017
Solutions of poly(ether ether ketone) in dichloroacetic acid have been shown to form monolithic, thermoreversible gels at temperatures ranging from 10 to 140 °C. A phase diagram was constructed over broad concentration and temperature ranges, and the phase boundary suggests an upper critical solution temperature (UCST) behavior. Furthermore, poly(ether
Samantha J. Talley   +2 more
openaire   +2 more sources

Synthesis and properties of novel copolymers of poly(ether ketone diphenyl ketone ether ketone ketone) and poly(ether amide ether amide ether ketone ketone)

Polymer Engineering & Science, 2013
New monomers, 4,4′‐bis(4‐phenoxybenzoyl)diphenyl (BPOBDP) and N,N′‐bis(4‐phenoxybenzoyl)−4,4′‐diaminodiphenyl ether (BPBDAE), were conveniently synthesized via simple synthetic procedures from readily available materials. Novel copolymers of poly(ether ketone diphenyl ketone ether ketone ketone) (PEKDKEKK) and poly(ether amide ether amide ether ketone ...
Bin Huang   +3 more
openaire   +1 more source

Blends of Poly(ether ether ketone ketone) and Poly(p-phenyiene sulphide): Addition of Poly(ether ether ketone) Oligomer

Polymers and Polymer Composites, 1999
The effect on compatibility of the addition of poly(ether ether ketone) (PEEK) oligomer to poly(ether ether ketone ketone) (PEEKK)/polv(p-phenylene sulphide) (PPS) blends has been investigated. Viscoelastic measurements and differential scanning calorimetry (DSC) of PEEKK/PPS blends show that the blends are completely immiscible over the whole ...
Zhijie Fang   +3 more
openaire   +1 more source

Innovative Multiplicative Connectivity of Poly-ether Ketone, Poly-ether Ketone  Ketone, and Poly-ether Ether Ketone

Journal of Mathematical Modeling and Fractional Calculus
Organic chemistry constantly pushes the boundaries by synthesizing new molecules each year.  However, before these compounds can be practically used, rigorous testing is needed to  understand their characteristics. This process can be expensive and time-consuming, requiring  specialized laboratory equipment, chemicals, and personnel.
Umar Farooq, Faryal Chaudhry
openaire   +1 more source

The crystallinity of poly(ether ether ketone)

Polymer, 1992
Abstract Differences have been observed between the enthalpies of crystallization and fusion of quenched ‘amorphous’ poly(ether ether ketone) (PEEK) which have been attributed to residual crystallinity produced during quenching. Comparison with samples of PEEK crystallized under well defined conditions reveals that these apparent differences arise ...
A.A. Mehmet-Alkan, J.N. Hay
openaire   +1 more source

Synthesis and properties of poly(ether ether ketone ketone)‐poly(ether sulfone) block copolymers

Journal of Applied Polymer Science, 1996
Poly(ether ether ketone ketone)-poly(ether sulfone) (PEEKK/PES) block copolymers were prepared from the corresponding oligomers via a nucleophilic aromatic substitution reaction, and the M n of the PEEKK segment was fixed at 12,000, while the M n 's of the PES segment ranged from 250 to 12,680.
Junkui Cao   +3 more
openaire   +1 more source

The Semicrystalline Morphology of Poly(ether−ether−ketone) Blends with Poly(ether−imide)

Macromolecules, 1998
The microstructure of cold-crystallized poly(ether- ether-ketone)/poly(ether-imide) (PEEK/ PEI) blends has been investigated by a combination of wide- and small- angle X-ray scattering (SAXS), dielectric spectroscopy, and transmission electron microscopy.
Jonas, Alain   +2 more
openaire   +2 more sources

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