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首页> 外文期刊>Journal of Applied Polymer Science >3D-printing of highly translucent ORMOCER (R)-based resin using light absorber for high dimensional accuracy
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3D-printing of highly translucent ORMOCER (R)-based resin using light absorber for high dimensional accuracy

机译：使用光吸收器的高度半透明锻造（R）的3D印刷，用于高尺寸精度

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摘要

Additive manufacturing, more specifically digital light processing as a form of vat photopolymerization, has attracted great interest and plays an important role in many different applications. However, it becomes complicated when complex parts with overhangs and/or pores are printed, especially if the part has to be transparent. The aim of this study is to improve the dimensional accuracy in z-direction of highly translucent 3D-printed parts. Therefore, ORMOCER (R) resin-based materials containing different light absorbers are developed to control the penetration depth of incident light and thereby increase the resolution in z-direction. Penetration tests are conducted and show that, in the presence of light absorbers, the curing depth can be adjusted while maintaining a high translucency of the printed part. Furthermore, a model part is developed to quantify the overpolymerization in z-direction and the influence of the absorber. Additionally, properties that are important for future applications, for example in the dental sector, such as mechanical properties and biocompatibility, are investigated yielding promising results. Finally, a complex filigree 3D-grid structure is fabricated applying the resin-based absorber material.
机译：添加剂制造，更具体地说，数字光处理作为vat光聚合的一种形式，已经引起了人们的极大兴趣，并在许多不同的应用中发挥着重要作用。然而，当打印出带有突出部分和/或气孔的复杂零件时，情况会变得复杂，尤其是当零件必须透明时。本研究的目的是提高高透明度3D打印零件z方向的尺寸精度。因此，开发了含有不同光吸收体的ORMOCER（R）树脂基材料，以控制入射光的穿透深度，从而提高z方向的分辨率。渗透测试表明，在存在光吸收剂的情况下，可以调整固化深度，同时保持印刷件的高半透明性。此外，还开发了一个模型部件来量化z方向上的过度聚合以及吸收器的影响。此外，还研究了对未来应用（例如牙科领域）非常重要的性能，如机械性能和生物相容性，并得出了有希望的结果。最后，应用树脂基吸收体材料制作了一个复杂的细丝三维网格结构。

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