On September 13, 2018, Antarctic bears learned from foreign media that VTT and Helsinki-based Carbodeon developed a plastic wire called uDiamond® for consumer and industrial use, enabling faster 3D printing and improved The mechanical durability of the printout. uDiamond wire has increased the usability of 3D technology and broadened the range of 3D printing applications.
Diamond nanoparticles are one of the best known and hardest materials for thermal conductivity. The new 3D printed wire has excellent performance thanks to the nano-diamond particles it contains. The spherical nano-diamond in the material is like Like a lubricant, it does not increase the blockage of the printer nozzle.
Nano-diamonds improve the thermal conductivity of plastic materials and help increase 3D printing speed. In Carbodeon's test, the print speed can be increased to 500 mm/s.
Carbodeon CEO VesaMyllymäki explained: “VTT is a long-term, reliable partner that quickly meets our needs. Carbodeon has extensive patent protection for its production of nanodiamond materials and refined products enhanced with nanodiamonds.â€
VTT and Carbodeon have developed a method for uniformly dispersing nanodiamonds in PLA materials, making the final product a PLA composite optimized for 3D printing and manufactured on an industrial scale. In addition, VTT also tested the properties of plastic materials and 3D printed output.
“Using our chemical testing equipment, VTT produced the nanodispersion materials needed for melt processing to support the production of new products,†said Jarmo Ropponen, head of the VTT chemical test group.
Although nanodiamonds are used in materials at very low concentrations, they can also significantly improve material properties at low cost. According to REACH and EPA assessments, Carbondeon's nanodiamonds are non-toxic materials for a variety of applications. Nanodiamond reinforced PLA plastics are also easy to print using consumer grade 3D printers.
“With the introduction of nanodiamonds, the melt processing of plastics has become easier and the mechanical properties have been improved. Based on preliminary tests, the modulus of 3D printed test pieces has been increased by up to 200 compared to the existing PLA baseline materials on the market. More than %. VTT's Polymer Pilot produced the first batch of 600 kg of material, which Carbodeon improved into a commercial product," explains VTT research scientist Satu Pasanen.
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