In response to Xiamen College (XMU), a analysis workforce led by Professor Wu Dezhi on the Pen-Tung Sah Institute of Micro-Nano Science and Know-how has achieved a major breakthrough within the 3D printing of thermoset supplies. The examine, titled ‘Laser-assisted direct three-dimensional printing of free-standing thermoset gadgets’, is printed 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 infrequently require the deposition and removing of supporting supplies.
The workforce has developed an method that integrates in situ laser-induced solidification with direct ink writing, enabling the fabrication of useful and arbitrary free-standing thermoset constructions with out help supplies.
Throughout printing, a targeted laser irradiates the microscale polymer jet, inducing fast crosslinking inside lower than 0.25 seconds by means of a robust 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 expertise has the potential to advance functions in versatile electronics, microfluidics, comfortable robotics, organ-on-chips, and biomedical scaffolds that require advanced three-dimensional architectures and multifunctional integration.