Morphology and properties of foamed high crystallinity PEEK prepared by high temperature thermally induced phase separation

Polyetheretherketone (PEEK) is a high‐performance semi‐crystalline thermoplastic polymer with outstanding mechanical properties, high thermal stability, resistance to most common solvents, and good biocompatibility. A high temperature thermally induced phase separation technique was used to produce...

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Bibliographic Details
Published in:Journal of applied polymer science 2022-01, Vol.139 (1), p.51423-n/a
Main Authors: Rusakov, Dmitrii, Menner, Angelika, Spieckermann, Florian, Wilhelm, Harald, Bismarck, Alexander
Format: Article
Language:English
Subjects:
Biocompatibility
Bulk density
Cooling rate
Crystal structure
Crystallinity
Foams
High temperature
Materials science
Mechanical properties
Modulus of elasticity
Morphology
Phase separation
Physical properties
Poly ether ether ketone (PEE)K
Polyether ether ketones
Polymers
porous polymers
Temperature induced phase separation (TIPS)
Thermal resistance
Thermal stability
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Description
Summary:Polyetheretherketone (PEEK) is a high‐performance semi‐crystalline thermoplastic polymer with outstanding mechanical properties, high thermal stability, resistance to most common solvents, and good biocompatibility. A high temperature thermally induced phase separation technique was used to produce PEEK foams with controlled foam density from PEEK in 4‐phenylphenol (4PPH) solutions. Physical and mechanical properties, foam and bulk density, surface area, and pore morphology of foamed PEEK were characterized and the role of PEEK concentration and cooling rate was investigated. Porous PEEK with densities ranging from 110 to 360 kg/m3 with elastic moduli and crush strength ranging from 13 to 125 MPa and 0.8 to 7 MPa, respectively, was produced. Temperature induced phase separation of PEEK from 4‐phenylphenol solutions allows for production of high porosity PEEK foams with excellent mechanical properties.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.51423