RT journal article
T1 Fatty acid – functionalized cellulose nanocomposites for vat photopolymerization
A1 Maturi, Mirko
A1 Spanu, Chiara
A1 Fernández Delgado, Natalia
A1 Molina Rubio, Sergio Ignacio
A1 Comes, Mauro
A1 Locatelli, Erica
A1 Sanz de León, Alberto
A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica
AB In recent years, nanocellulose, also called cellulose nanocrystals (CNCs), arose as one of the most interesting bio-based material for the incorporation as additive in polymers, due to its ability to increase the mechanical properties of the derived nanocomposites. Unfortunately, the natural hydrophilicity of CNCs strongly limited the mutual dispersion of cellulose crystals into the polymeric lipophilic chains, posing huge limitations both in cellulose loadings and efficacy. Herein we have synthesized a series of nanocomposites for vat photopolymerization, based on a commercial resin and CNCs modified with fatty acids obtained from safflower oil (SOFA), which allows hydrophobization of CNCs and their proper dispersion in the polymeric resin. The combination of these compounds allows manufacturing solid and complex objects without any defects in their structure from bio-based nanocomposites with CNCs-SOFA concentrations up to 5 wt%. The analyses of their mechanical and optical properties were also studied revealing that nanocomposites with CNCs-SOFA possess increased stiffness and strength without experiencing a significant loss in their transparency, when compared to the pristine resin.
PB Elsevier B.V.
SN 2214-8604
YR 2023
FD 2023-01-05
LK http://hdl.handle.net/10498/30590
UL http://hdl.handle.net/10498/30590
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 21-sep-2026