Bioglass Scaffolds Reinforced by a Composite Polyvinyl Alcohol/Microfibrillated Cellulose Coating

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F14%3A00435421" target="_blank" >RIV/68081723:_____/14:00435421 - isvavai.cz</a>
Result on the web
<a href="http://www.programmaster.org/PM/PM.nsf/ApprovedAbstracts/BF58F3A508FBEFCD85257C760035002B?OpenDocument" target="_blank" >http://www.programmaster.org/PM/PM.nsf/ApprovedAbstracts/BF58F3A508FBEFCD85257C760035002B?OpenDocument</a>
DOI - Digital Object Identifier
—

Result language
angličtina
Original language name
Bioglass Scaffolds Reinforced by a Composite Polyvinyl Alcohol/Microfibrillated Cellulose Coating
Original language description
The present work deals with the preparation and characterization of Bioglass porous scaffold reinforced by a composite coating constituted by polyvinyl alcohol and microfibrillated cellulose(MFC). Samples were produced by foam replication process, involving a modified ethanol-based slurry. A structure with nominally 90% of open porosity and 400 ?m mean pore size was achieved. The coating was obtained by dipping the samples into an aqueous solution of MFC. Compressive and tensile tests, according to a new testing methodology optimized for highly porous ceramics were carried out. The addition of the coating led to a 40 fold increase of tensile strength and a 10 fold increase of compressive strength. SEM observations on broken struts surfaces proved the reinforcing and toughening effect of the coating due to crack bridging and fracture of cellulose fibrils.
Czech name
—
Czech description
—

Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)