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Improved phosphate‐based glass fiber performance achieved through acid etch/polydopamine treatment

Parsons, Andrew J.; Felfel, Reda M.; Wadge, Matthew D.; Grant, David M.


Matthew D. Wadge

Professor of Materials Science


Phosphate based glass fibres (PGF) are of interest as reinforcements for degradable implants, but have seen limited application due to their rapid loss of strength when subjected to aqueous conditions. Previous studies have utilised heat treatments to improve longer term strength retention at a significant cost to initial strength. In this study, acid etching is used to recover the initial fibre strength after heat treatment and a subsequent coating of polydopamine is applied to provide longer term retention of this recovered strength. After an initial loss of strength after heat treatment (1135-> 509 MPa), an optimised combination of acid treatment and polydopamine coating was able to recover to approximately 85% of the initial strength (969 MPa). The result was significant in comparison to acid treatment (647 MPa) or coating (688 MPa) alone. The combined acid/coating treatment was demonstrated to maintain fibre properties for at least 14 days, although the amount of polydopamine coating was observed to decrease over this period. The approach reported here is of importance as it offers the required


Parsons, A. J., Felfel, R. M., Wadge, M. D., & Grant, D. M. (2020). Improved phosphate‐based glass fiber performance achieved through acid etch/polydopamine treatment. International Journal of Applied Glass Science, 11(1), 35-45.

Journal Article Type Article
Acceptance Date Aug 20, 2019
Online Publication Date Aug 31, 2019
Publication Date 2020-01
Deposit Date Sep 2, 2019
Publicly Available Date Sep 2, 2019
Journal International Journal of Applied Glass Science
Print ISSN 2041-1286
Electronic ISSN 2041-1294
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 11
Issue 1
Pages 35-45
Keywords General Materials Science
Public URL
Publisher URL
Additional Information Received: 2019-05-31; Accepted: 2019-08-20; Published: 2019-09-13


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