TY - JOUR

T1 - Multi-Material 3D Printing of Biobased Epoxy Resins

AU - Bergoglio, Matteo

AU - Rossegger, Elisabeth

AU - Schlögl, Sandra

AU - Griesser, Thomas

AU - Waly, Christoph

AU - Arbeiter, Florian

AU - Sangermano, Marco

N1 - Publisher Copyright: © 2024 by the authors.

PY - 2024/5/27

Y1 - 2024/5/27

N2 - Additive manufacturing (AM) has revolutionised the manufacturing industry, offering versatile capabilities for creating complex geometries directly from a digital design. Among the various 3D printing methods for polymers, vat photopolymerisation combines photochemistry and 3D printing. Despite the fact that single-epoxy 3D printing has been explored, the fabrication of multi-material bioderived epoxy thermosets remains unexplored. This study introduces the feasibility and potential of multi-material 3D printing by means of a dual-vat Digital Light Processing (DLP) technology, focusing on bioderived epoxy resins such as ELO (epoxidized linseed oil) and DGEVA (vanillin alcohol diglycidyl ether). By integrating different materials with different mechanical properties into one sample, this approach enhances sustainability and offers versatility for different applications. Through experimental characterisation, including mechanical and thermal analysis, the study demonstrates the ability to produce structures composed of different materials with tailored mechanical properties and shapes that change on demand. The findings underscore the promising technology of dual-vat DLP technology applied to sustainable bioderived epoxy monomers, allowing sustainable material production and complex structure fabrication.

AB - Additive manufacturing (AM) has revolutionised the manufacturing industry, offering versatile capabilities for creating complex geometries directly from a digital design. Among the various 3D printing methods for polymers, vat photopolymerisation combines photochemistry and 3D printing. Despite the fact that single-epoxy 3D printing has been explored, the fabrication of multi-material bioderived epoxy thermosets remains unexplored. This study introduces the feasibility and potential of multi-material 3D printing by means of a dual-vat Digital Light Processing (DLP) technology, focusing on bioderived epoxy resins such as ELO (epoxidized linseed oil) and DGEVA (vanillin alcohol diglycidyl ether). By integrating different materials with different mechanical properties into one sample, this approach enhances sustainability and offers versatility for different applications. Through experimental characterisation, including mechanical and thermal analysis, the study demonstrates the ability to produce structures composed of different materials with tailored mechanical properties and shapes that change on demand. The findings underscore the promising technology of dual-vat DLP technology applied to sustainable bioderived epoxy monomers, allowing sustainable material production and complex structure fabrication.

KW - 3D printing

KW - biobased

KW - epoxy thermosets

KW - multi-materials

KW - photopolymers

UR - http://www.scopus.com/inward/record.url?scp=85195805282&partnerID=8YFLogxK

U2 - 10.3390/polym16111510

DO - 10.3390/polym16111510

M3 - Article

AN - SCOPUS:85195805282

VL - 16.2024

JO - Polymers

JF - Polymers

SN - 2073-4360

IS - 11

M1 - 1510

ER -