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Video: Covestro Develops New Materials For 3D Printing
Covestro offers a wide range of filaments for fused filament fabrication (FFF). It ranges from flexible thermoplastic polyurethanes (TPU) to high-strength polycarbonate (PC). The polycarbonates, which are converted into filaments by the partner Polymaker, are characterized by very good temperature stability and hardness. 3D-printed products made from these plastics are used in lighting and design as well as in other applications where good strength is important, even when exposed to heat.
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Covestro also offers thermoplastic polyurethanes (TPU) for selective laser sintering (SLS). The material is sintered using a laser beam. This creates spatial structures layer by layer. Here, TPU offers clear advantages over conventional SLS materials, which are less hard and elastic. Powdered TPU is already used in industrial production, for example in the manufacture of individual high-performance soles for shoes. The Covestro partner Lehmann & Voss & Co. formulates such products and sells them to important shoe manufacturers.
Covestro has also developed systems for stereolithography (SLA), digital light process (DLP) and inkjet printing. Due to the broad base of isocyanates and polyols, these polyurethane resins offer the unique opportunity to adapt properties such as hardness and flexibility as well as chemical and weather resistance to customer needs. In this way, object features in the volume can be created in a targeted manner, for example a property gradient. (qui)
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