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In line with Xiamen College (XMU), a analysis group led by Professor Wu Dezhi on the Pen-Tung Sah Institute of Micro-Nano Science and Expertise has achieved a big breakthrough within the 3D printing of thermoset supplies. The research, titled ‘Laser-assisted direct three-dimensional printing of free-standing thermoset gadgets’, is revealed in Nature.
Present direct ink writing strategies assisted by thermal, acoustic, or ultraviolet fields face limitations in curing effectivity, materials compatibility, and efficiency tuning, and sometimes require the deposition and elimination of supporting supplies.
The group has developed an strategy that integrates in situ laser-induced solidification with direct ink writing, enabling the fabrication of purposeful and arbitrary free-standing thermoset constructions with out assist supplies.
Throughout printing, a targeted laser irradiates the microscale polymer jet, inducing speedy crosslinking inside lower than 0.25 seconds by a powerful photothermal impact. This technique achieves a structural decision of fifty micrometers and permits mechanical properties to be tuned by as much as tenfold and electrical properties by as much as twentyfold.
Providing a quick, steady, and programmable manufacturing technique for thermoset constructions, the know-how has the potential to advance purposes in versatile electronics, microfluidics, comfortable robotics, organ-on-chips, and biomedical scaffolds that require complicated three-dimensional architectures and multifunctional integration.
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