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A Novel PEEK Foam with Ultra‐High Temperature‐Resistant by Temperature Induced Phase Separation

A Novel PEEK Foam with Ultra‐High Temperature‐Resistant by Temperature Induced Phase Separation

Authors :
Lingcheng Meng
Jinling Zhang
Shuang Zhao
Desheng Qi
Pan Xu
Shuoqi Wu
Le Wang
Xigui Yue
Zhenhua Jiang
Source :
Macromolecular Materials and Engineering, Vol 308, Iss 5, Pp n/a-n/a (2023)
Publication Year :
2023
Publisher :
Wiley-VCH, 2023.

Abstract

Abstract Polyaryletherketone is a kind of special engineering plastics with excellent comprehensive properties, high strength, good stability, and almost insoluble in any common solvent except concentrated sulfuric acid at room temperature. However, its high processing temperature also hinders its application and development in the foam. Here, a series of polyetheretherketone (PEEK) and diphenyl polyetheretherketone (PEDEK) composite foams are prepared by temperature induced phase separation, using diphenyl sulfone as solvent. The microstructure, thermal and mechanical properties of PEEK and PEDEK foam are compared. Highly porous PEEK and PEDEK foams with densities ranging from 0.13 to 0.25 g cm−3, with compressive strength ranging from 0.68 to 2.6 MPa, respectively, are produced. Meanwhile, the introduction of diphenyl structure can effectively improve the performance of PEEK foams at high temperature. It is found that PEDEK foam has a higher operating temperature than PEEK, and the compressive strength of 0.24 g cm−3 foam is still ≈1 MPa at 200 °C.

Details

Language :
English
ISSN :
14392054 and 14387492
Volume :
308
Issue :
5
Database :
Directory of Open Access Journals
Journal :
Macromolecular Materials and Engineering
Publication Type :
Academic Journal
Accession number :
edsdoj.806033835d5246c48565b26ac91d7745
Document Type :
article
Full Text :
https://doi.org/10.1002/mame.202200559