Engineering of silicone-based mixtures for the digital light processing of Åkermanite scaffolds
Authors/Creators
- 1. Centre for Functional and Surface-Functionalized Glass, Alexander Dubček University of Trenčín, 911 50 Trenčín, Slovakia
- 2. Ceramics Department, National Research Centre, Cairo, Egyp
- 3. Joint Glass Centre of the IIC SAS, TnUAD, and FChFT STU, FunGlass, Alexander Dubček University of Trenčín, Trenčín, Slovakia
- 4. Department of Industrial Engineering, Università degli Studi di Padova, Padova, Italy
Description
Siliconesmixedwithoxidefillersareinterestingprecursorsforseveralbioactiveglass-ceramics.Akeypointisrepresentedbythecouplingofsynthesisandshaping,sincehighlyporousbodies,informoffoamsorscaffolds,arefirstmanufacturedwithsiliconesinthepolymericstate,atlowtemperature,andlatersubjectedtoceramictransformation. After successful application of direct ink writing, the present study illustrates the tuning ofsilicone-based mixtures in order to form åkermanite (Ca2MgSi2O7) reticulated scaffolds by digital light pro-cessing.Thisimpliedtheselectionofcommercialsilicones,producingstableandhomogeneousblendswithaphotocurable resin and enabling the manufacturing of defect-free printed scaffolds, before and after firing,withoutfillers.Theblendswerefurtherrefinedwiththeintroductionoffillers,followedbyfiringat1100°C,inair.Optimizedsamples(fromH44resin)andreactivefillers(includingupto4.5wt.%boraxadditive),ledtocrack-freeandphase-purescaffoldswithmicroporousstruts.
Files
Engineering of silicone-based mixtures for the digital light processing of Åkermanite scaffolds.pdf
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