Engineering of silicone-based blends for the masked stereolithography of biosilicate/carbon composite scaffolds. Issue 13 (October 2022)

• Record Type: Journal Article
• Authors: Ożóg, Paulina; Elsayed, Hamada; Grigolato, Luca; Savio, Gianpaolo; Kraxner, Jozef; Galusek, Dušan; Bernardo, Enrico
• Is Part Of: Journal of the European Ceramic Society. Volume 42:Issue 13(2022)
• Page Start: 6192
• Page End: 6198
• Publication Date: 2022-10
• Subjects: Biosilicate® glass-ceramic -- Polymer-derived-ceramics -- SiOC -- Additive manufacturing -- Masked stereolithography; Ceramic materials -- Periodicals; Composite materials -- Periodicals; Matériaux céramiques -- Périodiques; Composites -- Périodiques; Ceramic materials; Composite materials; Periodicals; Electronic journals; 666.05
• DOI: 10.1016/j.jeurceramsoc.2022.06.057
• Languages: English
• ISSNs: 0955-2219

Abstract

Abstract: Silicone resins, filled with phosphates and other oxide fillers, have been recently proposed as feedstock for the manufacturing of scaffolds with a composition resembling that of commercial Biosilicate® glass-ceramics. Silicones and engineered fillers enable the preparation of novel carbon-containing Biosilicate-based composites and, fundamentally, the easy application of additive manufacturing technologies. After successful demonstration of the applicability of direct ink writing of silicone-based pastes, the present paper is dedicated to preparation of highly porous scaffolds obtained by masked stereolithography, starting from a simple blend of silicone resin with commercial photocurable acrylates. Deviations in the desired phase assemblage were corrected by calibration of the silicone/fillers ratio. The more advanced printing technology, combined with ceramic transformation, allowed fabrication of scaffolds with a complex geometry and a distinctive control of overall porosity.