Multi-Color 3D Printing via Single-Vat Grayscale Digital Light Processing

Xirui Peng; Liang Yue; Sizhuang LiangStuart MontgomeryChunliang LuChieh-Min ChengRaheem BeyahRuike Renee ZhaoH. Jerry Qi

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Multi-Color 3D Printing via Single-Vat Grayscale Digital Light Processing

机译：Multi-Color 3D Printing via Single-Vat Grayscale Digital Light Processing

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Digital light processing (DLP) is a high-resolution, high-speed additive manufacturingmethod that builds 3D parts by selectively curing photopolymerizableresins layer-by-layer. To achieve multi-color DLP printing, researchershave used multiple switchable resin vats. However, these methods requirecomplex vat switching devices and cleaning manipulations, leading to lowefficiency. Therefore, it remains a challenge to achieve multi-color DLP 3Dprinting efficiently. In this study, a single-vat multi-color DLP 3D printingby using an anthraquinone-based dye is realized. The dye can be oxidizedby the free radicals released from photoinitiators under ultraviolet light andchange the color from blue to yellow. This color-changing mechanism permitsa graded spectrum of colors as concomitants of the photopolymerizationprocess during DLP printing by controlling the light dose without usingextra vats or devices. Multi-color demonstrations, such as engineering stresssimulation results in 3D and multi-color vases, are successfully fabricated,showing great versatility and efficiency.

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《Advanced functional materials》 |2022年第28期|2112329.1-2112329.9|共9页
作者
Xirui Peng; Liang Yue; Sizhuang LiangStuart MontgomeryChunliang LuChieh-Min ChengRaheem BeyahRuike Renee ZhaoH. Jerry Qi;
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作者单位

The George W. Woodruff School of Mechanical EngineeringGeorgia Institute of TechnologyAtlanta, GA 30332, USA, Renewable Bioproduct InstituteGeorgia Institute of TechnologyAtlanta, GA 30332, USA;

The George W. Woodruff School of Mechanical EngineeringGeorgia Institute of TechnologyAtlanta, GA 30332, USA;

The School of Electrical and Computer EngineeringGeorgia Institute of TechnologyAtlanta, GA 30332, USATechnology and Development GroupXerox CorporationWebster, NY 14580, USADepartment of Mechanical EngineeringStanford UniversityStanford, CA 94305, USA;

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正文语种英语
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additive manufacturing; digital light processing; grayscale digital light processing; multi-color 3D printing;

Multi-Color 3D Printing via Single-Vat Grayscale Digital Light Processing

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