relation: https://khub.utp.edu.my/scholars/15021/ title: Ionic liquid assisted polyetheretherketone-multiwalled carbon nanotubes nanocomposites: An environmentally friendly approach creator: Ahmad, A. creator: Mahmood, H. creator: Mansor, N. creator: Iqbal, T. creator: Moniruzzaman, M. description: Reinforcement of PEEK by nanoparticles such as multiwalled carbon nanotubes (MWCNTs), is a promising technique to prepare PEEK nanocomposites with improved properties for promising biomedical applications. However, proper dispersion of MWCNTs in the polymer matrices is a primary processing challenge. The present study reports a novel and environmentally beneficial approach for homogeneous dispersion of MWCNT in PEEK by using ionic liquid (IL) 1-ethyl-3-methylimidazolium hydrogen sulfate (EMIMHSO4). Neat PEEK, PEEK-MWCNTs (using conventional organic solvent dimethylformamide), and PEEK-MWCNTs-IL (using EMIMHSO4) nanocomposites were fabricated via melt-compounding and compression molding techniques. The fabricated composites were characterized for morphological, thermal, and mechanical properties and compared to those of neat PEEK and PEEK-MWCNTs. Ionic liquid provoked proficient dispersion of the MWCNTs in PEEK, as confirmed by FESEM and optical micrographs. The thermal stability of PEEK-MWCNTs-IL composite was significantly superior to that of the neat PEEK and PEEK-MWCNTs. Analysis of tensile strength and nanoindentation depicted that the modulus of elasticity of PEEK-MWNCTs-IL was significantly increased by 76% as compared to that of neat PEEK. We believe that the present work could provide a new and green platform for the manufacturing of PEEK nanocomposites with enhanced dispersion of nanofillers for biomedical applications. © 2020 Wiley Periodicals LLC. publisher: John Wiley and Sons Inc date: 2021 type: Article type: PeerReviewed identifier: Ahmad, A. and Mahmood, H. and Mansor, N. and Iqbal, T. and Moniruzzaman, M. (2021) Ionic liquid assisted polyetheretherketone-multiwalled carbon nanotubes nanocomposites: An environmentally friendly approach. Journal of Applied Polymer Science, 138 (14). ISSN 00218995 relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85093948409&doi=10.1002%2fapp.50159&partnerID=40&md5=8f5bb0408fd7efd0a3c404251554c107 relation: 10.1002/app.50159 identifier: 10.1002/app.50159