METHODS AND TECHNIQUES USED IN THE DEVELOPMENT OF CERAMIC-REINFORCED PHOTOPOLYMER COMPOSITES FOR 3D PRINTING

Abstract

Abstract. Ceramic-reinforced photopolymer composites have attracted considerable attention for additive manufacturing applications in regenerative medicine, digital dentistry, and biomedical engineering. The incorporation of ceramic fillers into photocurable resin systems enables the fabrication of structures with enhanced mechanical properties, dimensional stability, bioactivity, and antimicrobial functionality. However, the successful processing of these materials by stereolithography (SLA), digital light processing (DLP), and LCD-based technologies requires careful control of suspension composition, rheological behavior, photopolymerization kinetics, and post-processing conditions. This paper reviews the principal methods and techniques employed in the development of ceramic-filled photopolymer composites. Particular attention is devoted to resin formulation, ceramic filler selection, suspension preparation, particle surface modification, and characterization techniques including SEM, EDS, XRD, UV-Vis spectroscopy, rheological analysis, thermal characterization, and mechanical testing. The relationships among particle size distribution, curing behavior, microstructure, and final properties are discussed. Current challenges and future research directions are also highlighted, emphasizing multifunctional and biocompatible materials for advanced biomedical applications.