Mechanical and thermal degradation behavior of inorganic fullerene-liked tungsten disulfide reinforced perfluoroalkoxy/poly(ether-ether-ketone) nanocomposites

Chen, Ding; Cao, Xinyuan; Tiwari, Santosh K.; Ola, Oluwafunmilola; Wang, Nannan; Zhu, Yanqiu

Abstract

Enhancing the mechanical, thermal properties and obtaining the thermal degradation mechanism of polymers is crucial for designing advanced polymer composites. Here, an inorganic fullerene-like tungsten disulfide nanoparticle reinforced perfluoroalkoxy and poly(ether-ether-ketone) (PFA/PEEK/IF-WS2) nanocomposites were developed using solution mixing and polymer blending techniques. This work investigated the mechanical, thermal properties and thermal degradation behavior of PFA/PEEK blends and PFA/PEEK/IF-WS2 nanocomposites. FTIR analysis demonstrated the interacting hydrogen bonds. SEM and TEM showed the compatibility of the incompatible PFA/PEEK blend was improved with the introduction of IF-WS2. TG analysis indicated that IF-WS2 enhanced the thermal stability of PFA/PEEK blends. The PFA/PEEK/IF-WS2 nanocomposites exhibited better mechanical properties, especially tensile properties, with a 37.9% increase in tensile strength and a 106% increase in storage modulus. DSC showed that compared with pure PFA, the initial melting temperature of the 80/20/1% sample was increased by 8.64 ℃, and the crystallinity was increased by 9.44%. TG-IR analysis showed that IF-WS2 delayed the time of thermal decomposition products and reduced the yield of organic volatiles. Excellent barrier properties and good compatibility of IF-WS2 in the PFA/PEEK blends are considered to be the keys to enhance mechanical and thermal performances.

Citation

Chen, D., Cao, X., Tiwari, S. K., Ola, O., Wang, N., & Zhu, Y. (2022). Mechanical and thermal degradation behavior of inorganic fullerene-liked tungsten disulfide reinforced perfluoroalkoxy/poly(ether-ether-ketone) nanocomposites. Polymer Degradation and Stability, 203, Article 110041. https://doi.org/10.1016/j.polymdegradstab.2022.110041

• Journal Article Type: Article
• Acceptance Date: Jun 23, 2022
• Online Publication Date: Jul 16, 2022
• Publication Date: Sep 1, 2022
• Deposit Date: Jul 19, 2022
• Publicly Available Date: Jul 17, 2023
• Journal: Polymer Degradation and Stability
• Print ISSN: 0141-3910
• Publisher: Elsevier BV
• Peer Reviewed: Peer Reviewed
• Volume: 203
• Article Number: 110041
• DOI: https://doi.org/10.1016/j.polymdegradstab.2022.110041
• Keywords: Materials Chemistry; Polymers and Plastics; Mechanics of Materials; Condensed Matter Physics
• Public URL: https://nottingham-repository.worktribe.com/output/9087151
• Publisher URL: https://www.sciencedirect.com/science/article/pii/S0141391022002245?via%3Dihub