4D Printing of Soybean Oil an‎d Magnesium Powder Composite by Digital Light Processing Method

10/22/2026 12:00:00 AM

In this study, the development an‎d characterization of soybean oil an‎d magnesium powder composite for 4D printing via digital light processing (DLP) are presented. In this formulation, soybean oil epoxidized acrylate (SOEA) was used as the main resin, isobornyl methacrylate (IBOMA) as the reactive diluent, Irgacure 819 as the photoinitiator, an‎d magnesium oxide nanoparticles (MgO NPs) as the nano-additive. Initially, to optimize the base formulation (without magnesium), several mixtures with varying resin-to-diluent ratios an‎d different photoinitiator concentrations were prepared an‎d characterized to determine the most suitable composition for magnesium incorporation. Based on the results of the tensile an‎d shape-memory tests, the formulation containing 40 wt% resin, 60 wt% diluent, an‎d 2 phr photoinitiator was selec‎ted as the optimal composition. Subsequently, three different concentrations of magnesium nanoparticles were added to the optimized base resin to investigate their effects. Characterization included dynamic mechanical thermal analysis (DMA), Fourier-transform infrared spectroscopy (FTIR), tensile testing, shape-memory eva‎luation, an‎d cytotoxicity assays. Overall, the results demonstrated that the addition of magnesium nanoparticles generally led to an increase in both the elastic modulus an‎d ultimate tensile strength. Moreover, incorporating magnesium nanoparticles into the soybean oil, a bio-based material, enhanced cell viability over different incubation periods.

پردازش نوري ديجيتال , چاپ چهار بعدي , پليمر حافظه شكلي , روغن سويا , نانو ذره منيزيم

Digital light processing , 4D printing , Shape memory polymers , Soybean oil , Magnesium nano particle

Matin Kakhki

Dr. Ramin Hashemi