Owing to its robustness, ability to achieve complex geometries, and ease of use, 3D printing has become one of the noteworthy applications in the field of engineering. Polycarbonate has become a thermoplastic of interest due to its excellent mechanical and optical properties. Especially when infused with nanosilica, polycarbonate becomes a potential candidate for 3D printing with enhanced properties. Polycarbonate nanocomposite filaments infused with AEROSIL (nanosilica) have been melt extruded with various filler loadings of 0.5, 1, and 3 wt% and are then 3D printed. The thermal analysis of the filaments has shown that thermal stability of the filaments increases with increase in filler loading. Tensile tests have shown that addition of nanosilica have enhanced the mechanical properties of the filaments as well as 3D printed films. The addition of silica in low concentrations exhibit higher transmittance of UV light, as silica restricts the mobility of polycarbonate. Despite 3D printing causing voids in bulk materials, silica at low concentration (0.5 and 1 wt%) can improve the mechanical and optical properties. These improvements are promising for applications in thin film interfaces and the automotive industry.

由于其坚固性、实现复杂几何形状的能力和易用性，3D 打印已成为工程领域中值得注意的应用之一。由于其优异的机械和光学性能，聚碳酸酯已成为一种令人感兴趣的热塑性塑料。特别是当注入纳米二氧化硅时，聚碳酸酯成为具有增强性能的 3D 打印的潜在候选者。注入了 AEROSIL（纳米二氧化硅）的聚碳酸酯纳米复合长丝已用 0.5、1 和 3 重量％的各种填料进行熔融挤出，然后进行 3D 打印。长丝的热分析表明，长丝的热稳定性随着填料填充量的增加而增加。拉伸测试表明，纳米二氧化硅的添加增强了长丝和 3D 打印薄膜的机械性能。添加低浓度的二氧化硅表现出更高的紫外线透射率，因为二氧化硅限制了聚碳酸酯的流动性。尽管 3D 打印会在散装材料中造成空隙，但低浓度（0.5 和 1 wt%）的二氧化硅可以改善机械和光学性能。这些改进对于薄膜界面和汽车行业的应用很有希望。