Effect of carbon nanotubes on the biotribological behavior of hot-pressed PEEK-based composites for biomedical applications. (1st September 2022)

• Record Type: Journal Article
• Authors: Pigosso, T; Richhariya, V; Binder, C; Silva, F S; Carvalho, O; Gomes, J R
• Is Part Of: Engineering research express. Volume 4:Number 3(2022)
• Publication Date: 2022-09-01
• Subjects: carbon nanotubes -- polymer composite -- sliding wear -- biotribology; Engineering -- Periodicals; 620.005
• DOI: 10.1088/2631-8695/ac77db
• Languages: English
• ISSNs: 2631-8695

Abstract

Abstract: This study aims to evaluate the influence of carbon nanotubes (CNTs) content (0.1, 0.5, 1, and, 5 wt%) on the poly-ether-ether-ketone (PEEK) composites based on a veneering concept and produced by the hot-pressing technique. Biotribological tests were performed in a ball-on-plate geometry using an alumina ball as the counter body under a phosphate-buffered saline solution at 37 °C, assessing the coefficient of friction and specific wear rate. Hardness measurement, white-light interferometry, and scanning electron microscopy were employed to support the study. The results revealed that the carbon nanotubes exhibited a positive influence on the biotribological behavior resulting in 1 wt% CNT proved to be the optimized value. Such findings could engineer high-performance surfaces as load-bearing materials in biomedical applications.