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Mechanical reinforcement of Bioglass (R)-based scaffolds by novel polyvinyl-alcohol/microfibrillated cellulose composite coating
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SYSNO ASEP 0435151 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Mechanical reinforcement of Bioglass (R)-based scaffolds by novel polyvinyl-alcohol/microfibrillated cellulose composite coating Author(s) Bertolla, Luca (UFM-A) ORCID
Dlouhý, Ivo (UFM-A) RID, ORCID
Philippart, A. (DE)
Boccaccini, A. R. (DE)Number of authors 4 Source Title Materials Letters. - : ELSEVIER SCIENCE BV - ISSN 0167-577X
Roč. 118, MAR (2014), s. 204-207Number of pages 4 s. Language eng - English Country NL - Netherlands Keywords bioactive glass ; mechanical properties ; scaffolds ; cellulose ; coatings Subject RIV JL - Materials Fatigue, Friction Mechanics R&D Projects ED1.1.00/02.0068 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UFM-A - RVO:68081723 UT WOS 000331666600054 DOI 10.1016/j.matlet.2013.12.079 Annotation The preparation and mechanical properties of Bioglass®-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. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2015
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