Eventos Anais de eventos
COBEM 2021
26th International Congress of Mechanical Engineering
FORMULATION AND TESTS OF HYBRID PHOTOCURABLE RESINS FOR ADDITIVE MANUFACTURING
Submission Author:
João Fiore Parreira Lovo , SP
Co-Authors:
João Fiore Parreira Lovo, Roberto Ramon Mendonça, Italo Leite de Camargo, Carlos Fortulan
Presenter: João Fiore Parreira Lovo
doi://10.26678/ABCM.COBEM2021.COB2021-1189
Abstract
Additive manufacturing (AM) is one of 4.0 industry cornerstones, furthermore, the AM enables and propels new business generation in several economic sectors. The raw materials development for different additive manufacturing processes, such as vat photopolymerization (VP), contributes to a better strength of the printed parts and expanding, even more, the AM employment possibilities. This paper aims to formulate and testing hybrid resins (with acrylic and epoxy monomers), for additive manufacturing by VP. Initial tests using commercial resins were carried out to verify the mechanical properties correspondence between molded and 3D printed materials. Hybrid resins were formulated and then test specimens were molded and 3D printed by vat photopolymerization. The specimens were subjected to tensile, compression, and flexural tests. The initial tests result evinced satisfactory proximity between the mechanical resistance of the molded and the printed photopolymerizable resins. Among the tested formulations, the printed resin with the highest average resistance reached 53 MPa in tension, 102 MPa in compression, 101 MPa in bending. The results obtained with the formulated raw materials encourage the hybrid resins usage for final product fabrication, it also motivates new compositions development focused on the printed parts resistance, expanding, even more, the applicability and business possibilities with AM.
Keywords
3D printing, Photopolymerization, hybrid resins, AM, 4.0 Industry
DOWNLOAD PDF VIEW PRESENTATION
