Effects of aqueous aging on the mechanical properties of P40Na20Ca16Mg24 phosphate glass fibres

Cozien-Cazuc, Sophie; Parsons, Andrew J.; Walker, Gavin S.; Jones, I.A.; Rudd, Chris

doi:10.1007/s10853-008-2698-7

Cited by 23 publications

(48 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…4 and 5. Other authors in the literature investigated the influence of a heat treatment on the dissolution of phosphate glass fibres, and found similar results [38][39][40]. Choueka et al [38] studied the influence of heat treatments on the dissolution of phosphate glass fibres containing zinc and iron.…”

Section: Dissolution Tests On Glass Fibresmentioning

confidence: 70%

“…Cozien-Cazuc et al [39] found that the annealing treatment re-duced the dissolution of glass fibres with composition 40P 2 O 5 -20Na 2 O-16CaO-24MgO (mol.%) in distilled water, with a differ-ence of an order of magnitude in the dissolution rate calculated on the first 24 h. The lower dissolution rate of the annealed fibres could be due to stabilization of the glass structure by the relieving of the residual stresses arising from drawing. Cozien-Cazuc et al [40] proposed that the annealed fibres, losing part of the oriented structure imparted by the fibre drawing via relaxation of the poly-meric chains, have a more durable structure, less susceptible to stress corrosion effects.…”

Section: Dissolution Tests On Glass Fibresmentioning

confidence: 99%

“…This could be due to the slower dissolution of the an-nealed fibres, but also to the above discussed structure relaxation following the annealing treatment which led to a less oriented chain structure of the glass. In fact, thermal agitation during heat treatment will relax the polymer chains, promoting a more stable configuration [7,39,40].…”

Section: Dissolution Tests On Glass Fibresmentioning

confidence: 99%

“…Numerous studies in the literature describe a loss of structural integrity of the phosphate glass fibres during dissolution [7,[38][39][40]42,43]. Cozien-Cazuc et al [39,40] observed the formation of an outer hydrated layer and delamination during dissolution on both as-drawn and annealed glass fibres with composition 40P 2 O 5 -20Na 2 O-16CaO-24MgO (mol.%).…”

Section: Dissolution Tests On Glass Fibresmentioning

confidence: 99%

See 3 more Smart Citations

Phosphate glass fibres and their role in neuronal polarization and axonal growth direction

et al. 2012

View full text Add to dashboard Cite

Section: Dissolution Tests On Glass Fibresmentioning

confidence: 70%

Section: Dissolution Tests On Glass Fibresmentioning

confidence: 99%

Section: Dissolution Tests On Glass Fibresmentioning

confidence: 99%

Section: Dissolution Tests On Glass Fibresmentioning

confidence: 99%

See 2 more Smart Citations

Phosphate glass fibres and their role in neuronal polarization and axonal growth direction

et al. 2012

View full text Add to dashboard Cite

“…Abou Neel et al experienced a similar peeling effect for iron containing fibres 7 . This peeling effect in fibres was suggested to be due to the differential hydration between surface and bulk layers leading to tensile forces and subsequent cracking 48 .…”

Section: Discussionmentioning

confidence: 99%

Degradation and Characterization of Resorbable Phosphate-Based Glass Thin-Film Coatings Applied by Radio-Frequency Magnetron Sputtering

Stuart

Gimeno-Fabra

Segal

et al. 2015

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

(2015) Degradation and characterization of resorbable phosphate-based glass thin-film coatings applied by radio-frequency magnetron sputtering. ACS Applied Materials and Interfaces, 7 (49). pp. 27362-27372. ISSN 1944-8252 Access from the University of Nottingham repository: http://eprints.nottingham.ac.uk/34759/1/Pre-Proof-Degradation%20and%20Characterisation %20of%20Resorbable%20Thin%20Films%20%28002%29.pdf Copyright and reuse:The Nottingham ePrints service makes this work by researchers of the University of Nottingham available open access under the following conditions. This article is made available under the University of Nottingham End User licence and may be reused according to the conditions of the licence. For more details see: http://eprints.nottingham.ac.uk/end_user_agreement.pdf A note on versions:The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription. respectively. This factor led to highly soluble coatings, exhibiting a t 1/2 degradation dependence in the first 2 hours in distilled water, followed by a more characteristic linear profile as the subsequent layers were less soluble. Hydration and degradation was observed to preferentially occur, forming voids characteristic of pitting corrosion which was confirmed by use of a Focused Ion Beam. Coating degradation in PBS precipitated a (PO3) -metaphosphate, X-Ray amorphous layer, which remained adherent to the substrate and seemingly formed a protective diffusion barrier which inhibited further coating degradation.The implications are that whilst compositionally similar, sputter deposited coatings and melt quenched glasses are structurally dissimilar, most notably, with regards to the surface layer.This factor has been attributed to surface etching of the as deposited coating layer during 2 deposition and variation in the thermal history between the processes of magnetron sputtering and melt quenching.

show abstract

Cytocompatibility assessment of chemical surface treatments for phosphate glass to improve adhesion between glass and polyester

Hasan

Ahmed

Parsons

et al. 2013

J Biomedical Materials Res

Self Cite

View full text Add to dashboard Cite

Fully resorbable phosphate glass fiber reinforced polymer composites have shown real potential for replacing some of the existing metallic bone fracture fixation devices. However, some of these composites have not provided suitable mechanical strength profiles over the required healing period for bone. Typically, it has been seen that these composites can lose up to 50% or more of their strength within the first week of degradation. Functionalizing the glass surface to promote polymer adhesion or to introduce hydrophobicity at the glass surface could potentially introduce control over the mechanical properties of the composite and their retention. In this study eight chemical agents namely, Glycerol 2-phosphate disodium salt; 3-phosphonopropionic acid; 3-aminopropyltriethoxy silane; etidronic acid; hexamethylene diisocyanate; sorbitol/sodium ended PLA oligomers and amino phosphonic acid, were selected to functionalise the bulk phosphate glass surface. Selected chemical agents had one functional group (-OH or O C N) to react with the glass and another functionality (either -OH, NH2, or Na) to react with the polymer matrix and/or produce hydrophobicity at the fiber surface. Bulk phosphate glass surface-treated with the above agents were assessed for the cytotoxicity of degradation products cell-material interaction in short- and long-term direct cytocompatibility studies. Results obtained from these cytocompatibility studies (using human osteosarcoma (MG63) and primary human osteoblast cell lines) revealed no cytotoxicity from the degradation products and a response comparable to controls in terms of cell functions (attachment, viability, metabolic activity, proliferation, and differentiation) and morphology.

show abstract

Effects of aqueous aging on the mechanical properties of P40Na20Ca16Mg24 phosphate glass fibres

Abstract: Hemiketal. -Title compounds (II) containing a five-membered hemiketal are stereoselectively synthesized from acetylmethyl sugars (I). These products can be further transformed into different pyridine systems. -(WANG, H.; LUO, H.; MA, X.; ZOU, W.; SHAO*, H.; Eur.

Cited by 23 publications

References 8 publications

Phosphate glass fibres and their role in neuronal polarization and axonal growth direction

Phosphate glass fibres and their role in neuronal polarization and axonal growth direction

Degradation and Characterization of Resorbable Phosphate-Based Glass Thin-Film Coatings Applied by Radio-Frequency Magnetron Sputtering

Cytocompatibility assessment of chemical surface treatments for phosphate glass to improve adhesion between glass and polyester

Contact Info

Product

Resources

About