Publication detail

Preparation and characterization of Bioglass(R)-based scaffolds reinforced bypoly-vinyl alcohol/microfibrillated cellulose composite coating

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

Original Title

Preparation and characterization of Bioglass(R)-based scaffolds reinforced bypoly-vinyl alcohol/microfibrillated cellulose composite coating

Type

journal article in Web of Science

Language

English

Original Abstract

The present work deals with the preparation and mechanical characterization of Bioglass(R)-based porous scaffolds reinforced by a composite coating constituted by polyvinyl alcohol (PVA) and microfibrillated cellulose (MFC). Samples were produced by foam replication process, using a novel ethanol-based Bioglass(R) slurry. The addition of PVA/MFC coating led to a 10 fold increase of compressive strength and a 20 fold increase of tensile strength in comparison with non-coated scaffolds. SEM observations of broken struts surfaces proved the reinforcing and toughening effect of the composite coating which were ascribed to crack bridging and fracture of cellulose fibrils. The mechanical properties of the coatings were investigated by tensile testing of PVA/MFC composite stripes. The stirring time of the PVA/MFC solution came out as a crucial parameter in order to achieve a more homogeneous dispersion of the fibers and therefore enhanced strength and stiffness

Keywords

bioglass scaffolds, composite coating, compression strength, tensile strength

Authors

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

RIV year

2014

Released

1. 5. 2014

Publisher

Elsevier

ISBN

0955-2219

Periodical

Journal of the European Ceramic Society

Year of study

34

Number

14

State

United Kingdom of Great Britain and Northern Ireland

Pages from

3379

Pages to

3387

Pages count

9

BibTex

@article{BUT113323,
  author="Luca {Bertolla} and Ivo {Dlouhý} and Aldo {Boccaccini}",
  title="Preparation and characterization of Bioglass(R)-based scaffolds reinforced bypoly-vinyl alcohol/microfibrillated cellulose composite coating",
  journal="Journal of the European Ceramic Society",
  year="2014",
  volume="34",
  number="14",
  pages="3379--3387",
  doi="10.1016/j.jeurceramsoc.2014.04.003",
  issn="0955-2219"
}