A team of researchers from Kaunas College of Technology (KTU) and Vilnius University, Lithuania, have proved that a product dependent on cooking oil can be used for 3D printing certification.
Acknowledged as AESO (acrylated epoxidized soybean oil) the materials is going through tests for its possible to switch petroleum-derived resins, and has been demonstrated to operate without the need of the use of a photoinitiator.
The group’s most latest experimentation has been published on the web in Polymers journal.
Solvent-absolutely free 3D printing certification
In this latest review, the KTU/Vilnius team operate with a tailor made-made direct laser producing (DLW) lithography technique. Like other relevant methods, (i.e. two photon polymerization) the DLW technique harnesses the ability and velocity of femtosecond laser pulses to swiftly overcome a liquid into a sound.
A small, square lattice was decided on as the exam artifact. In whole, the staff experimented with 3 various AESO mixtures to identify the very best achievable method, namely:
– Pure AESO
– AESO with vanillin dimethacrylate (VDM)
– And AESO with vanillin diacrylate (VDA)
The two vanilla-based mostly extracts, derived from lignin, VDM and VDA were examined in this experiment as a replacement for the aromatic-compounds commonly found in petroleum-centered resins. As acrylates, each substances also have superior mild sensitivity which could strengthen polymerization.
An environmentally-pleasant future for vat polymerization
In this experimental established up, checks reveals that pure AESO and AESO/VDM are suitable for 3D printing certification, without the need to have for photoinitators or solvents.
Evaluating the two nonetheless, conclusions include, “better thermal and mechanical homes ended up obtained for the pure AESO polymer.”
On top of that, “The smallest accomplished spatial capabilities are 1 µm with a throughput in 6900 voxels for every 2nd.”
Overall, the group believes that this could be a promising stage forward for the advancement of environmentally-friendly and sustainable polymers. Doable programs, due to avoidance of poisonous components, include 3D printed mobile scaffolds, and nanophotonics.
“Photoinitiator No cost Resins Composed of Plant-Derived Monomers for the Optical µ-3D Printing certification of Thermosets” is published open-accessibility in Polymers journal. It is co-authored by Migle Lebedevaite, Jolita Ostrauskaite, Edvinas Skliutas and Mangirdas Malinauskas.
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Highlighted graphic shows bottles of soybean oil. Picture by way of United Soybean Board/WikiMedia Commons