Modelling Mechanical Properties of Thermoplastic Polyurethanes through Laser Sintering Exposure for Replicating Micrometric Aortic Valve Membranes

This research investigates the use of Selective Laser Sintering (SLS) with Thermoplastic Polyurethane (TPU) in additive manufacturing to produce fine sub-millimeter aortic valve structures with specific properties. By adjusting exposure parameters, including energy density, laser power, scanning speed, and scan line distance, the study achieves a balance between flexibility and resistance.本研究探究了增材制造（additive manufacturing）中采用选择性激光烧结（Selective Laser Sintering，SLS）结合热塑性聚氨酯（Thermoplastic Polyurethane，TPU）制备具备特定性能的亚毫米级精细主动脉瓣膜结构的应用。通过调整能量密度、激光功率、扫描速度及扫描间距等曝光参数，本研究实现了柔韧性与抗形变能力之间的平衡。