| Sumario: | Argi bidezko 3D inprimaketan (DLP, Digital Light Processing) erabiltzen den erretxina biobateragarri (EB) bati propietate mekanikoak hobetzeko, esne-gazuraren proteina (EGP) gehitu zitzaion. Proteina hau gazta-prestaketa prozesuan eratzen den hondakinetik lortutako produktua da. Erretxina biobateragarria (EB) eta EGP hautsa % 5ean (bolumen/masa) nahastu ziren eta lortutako nahaste homogeneoari egin zitzaion karakterizazio erreologikoak inprimatzeko aproposa zela erakutsi zuen, inprimatzean egitura egonkorrak lortzen baitzituen forma-fideltasunean eragin zezakeen aldaketarik gabe. Errefortzu-sistema hobetzeko, tratamendu termiko bat aplikatu zitzaien laginei honela EPG hautsa zuten laginetan Maillard erreakzioa gerta zedin eta, beraz, haien propietate mekanikoak hobetzeko. Kolore-aldaketa nabariak ikusi ziren (horitasuna) tenperatura aplikatutako laginetan; Maillard erreakzioa gertatu zela baieztatu zuen horrek. Gainera, Maillard erreakziopean egon ziren egituren erresistentzia igo zen eta material zurrunago bat lortu zen horrela. Lan honek frogatzen du EGP gehigarri jasangarri moduan erabil daitekeela argi bidezko 3D inprimaketan, eta materialaren propietateak Maillard erreakzio bidez hobetu daitezkeela.; A biocompatible resin used in digital light processing (DLP) printing was combined with whey protein (EGP) to enhance its mechanical properties. This protein is derived from the by-product of the cheese-making process. The biocompatible resin (EB) and EGP powder were mixed at a ratio of 5% (volume/mass), which was found to be optimal for achieving suitable rheological properties for printing. The printed structures containing EGP showed no significant differences compared to those made with EB alone, suggesting that no changes occurred that would affect shape fidelity. To further improve the reinforcement system, a thermal treatment was applied to induce the Maillard reaction, aimed at enhancing the mechanical properties of the material. The samples treated with heat exhibited a yellowish color, confirming that the Maillard reaction took place. Moreover, the reaction led to an increase in the strength of the printed structures, resulting in more rigid material. This study demonstrates that EGP can serve as a sustainable additive in DLP printing, and its properties can be further improved through the Maillard reaction.
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