Influence of the thermal treatment on the characteristics of porous geopolymers as potential biomaterials.
Bioactivity
Biodegradability
Direct foaming
Microstructure
Porous geopolymers
Journal
Materials science & engineering. C, Materials for biological applications
ISSN: 1873-0191
Titre abrégé: Mater Sci Eng C Mater Biol Appl
Pays: Netherlands
ID NLM: 101484109
Informations de publication
Date de publication:
Nov 2020
Nov 2020
Historique:
received:
03
01
2020
revised:
03
06
2020
accepted:
05
06
2020
entrez:
19
8
2020
pubmed:
19
8
2020
medline:
27
4
2021
Statut:
ppublish
Résumé
Highly porous sodium geopolymer structures were successfully produced through the chemical direct foaming approach at ambient temperature. The impact of the thermal treatment, as well as the influence of various additions of hydrogen peroxide, as a foaming agent, on the porosity, microstructure and mechanical characteristics of the produced geopolymers was investigated. The evaluation of bioactivity was carried out by assessing the formation of an apatite layer on the samples' surface, using scanning electronic microscopy and inductively coupled plasma spectrometry for the simulated body fluid solution, in which the geopolymer samples were kept up to 28 days. In addition, the biodegradability was estimated through the weight change of the samples and pH-measurements. The results demonstrated that the geopolymer foams, produced using 4.5 vol% H
Identifiants
pubmed: 32806273
pii: S0928-4931(20)30034-5
doi: 10.1016/j.msec.2020.111171
pii:
doi:
Substances chimiques
Biocompatible Materials
0
Polymers
0
Hydrogen Peroxide
BBX060AN9V
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
111171Informations de copyright
Copyright © 2020 Elsevier B.V. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.