Detail publikace

Mechanické vyztužení skafoldů na bázi Bioglass (R) pomocí nového kompozitního povlaku na bázi PVA/MFC

BERTOLLA, L. DLOUHÝ, I. PHILIPPART, A. BOCCACCINI, A.

Český název

Mechanické vyztužení skafoldů na bázi Bioglass (R) pomocí nového kompozitního povlaku na bázi PVA/MFC

Anglický název

Mechanical reinforcement of Bioglass (R)-based scaffolds by novel polyvinyl-alcohol/microfibrillated cellulose composite coating

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

en

Originální abstrakt

The preparation and mechanical properties of Bioglasss-based porous scaffolds reinforced by a composite coating constituted by polyvinyl alcohol (PVA) and microfibrillated cellulose (MFC) are investigated. Samples produced by foam replication process and having nominally 90% of open porosity were coated by dipping into an aqueous solution of PVA and MFC. Tensile tests were conducted on samples according to a new testing methodology optimized for highly porous ceramics. The addition of PVA/MFC coating led to a 10 fold increase of the tensile strength of scaffolds. The reinforcing and toughening effect of the composite coating due to crack bridging and fracture of cellulose fibrils embedded in the PVA matrix was proved by SEM observations.

Český abstrakt

The preparation and mechanical properties of Bioglasss-based porous scaffolds reinforced by a composite coating constituted by polyvinyl alcohol (PVA) and microfibrillated cellulose (MFC) are investigated. Samples produced by foam replication process and having nominally 90% of open porosity were coated by dipping into an aqueous solution of PVA and MFC. Tensile tests were conducted on samples according to a new testing methodology optimized for highly porous ceramics. The addition of PVA/MFC coating led to a 10 fold increase of the tensile strength of scaffolds. The reinforcing and toughening effect of the composite coating due to crack bridging and fracture of cellulose fibrils embedded in the PVA matrix was proved by SEM observations.

Anglický abstrakt

The preparation and mechanical properties of Bioglasss-based porous scaffolds reinforced by a composite coating constituted by polyvinyl alcohol (PVA) and microfibrillated cellulose (MFC) are investigated. Samples produced by foam replication process and having nominally 90% of open porosity were coated by dipping into an aqueous solution of PVA and MFC. Tensile tests were conducted on samples according to a new testing methodology optimized for highly porous ceramics. The addition of PVA/MFC coating led to a 10 fold increase of the tensile strength of scaffolds. The reinforcing and toughening effect of the composite coating due to crack bridging and fracture of cellulose fibrils embedded in the PVA matrix was proved by SEM observations.

Klíčová slova česky

skefoldy z bioskla; tahová zkouška; polymerní povlak, keramická pěna

Klíčová slova anglicky

bioglass scaffolds, tensile test, polymer coating, ceramic foams

Rok RIV

2014

Vydáno

01.03.2014

Nakladatel

Elsevier

ISSN

0167-577X

Ročník

118

Číslo

3

Strany od–do

204–207

Počet stran

4

BIBTEX


@article{BUT113324,
  author="Luca {Bertolla} and Ivo {Dlouhý} and Anahi {Philippart} and Aldo {Boccaccini},
  title="Mechanical reinforcement of Bioglass (R)-based scaffolds by novel polyvinyl-alcohol/microfibrillated cellulose composite coating",
  year="2014",
  volume="118",
  number="3",
  month="March",
  pages="204--207",
  publisher="Elsevier",
  issn="0167-577X"
}