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3D printing of multi-scalable structures via high penetration near-infrared photopolymerization

Author

Listed:
  • Junzhe Zhu

    (Jiangnan University
    Jiangnan University)

  • Qiang Zhang

    (Jiangnan University)

  • Tianqing Yang

    (Jiangnan University
    Jiangnan University)

  • Yu Liu

    (Jiangnan University
    Jiangnan University)

  • Ren Liu

    (Jiangnan University
    Jiangnan University)

Abstract

3D printing consisted of in-situ UV-curing module can build complex 3D structures, in which direct ink writing can handle versatile materials. However, UV-based direct ink writing (DIW) is facing a trade-off between required curing intensity and effectiveness range, and it cannot implement multiscale parallelization at ease. We overcome these difficulties by ink design and introducing near-infrared (NIR) laser assisted module, and this increases the scalability of direct ink writing to solidify the deposited filament with diameter up to 4 mm, which is much beyond any of existing UV-assisted DIW. The NIR effectiveness range can expand to tens of centimeters and deliver the embedded writing capability. We also demonstrate its parallel manufacturing capability for simultaneous curing of multi-color filaments and freestanding objects. The strategy owns further advantages to be integrated with other types of ink-based 3D printing technologies for extensive applications.

Suggested Citation

  • Junzhe Zhu & Qiang Zhang & Tianqing Yang & Yu Liu & Ren Liu, 2020. "3D printing of multi-scalable structures via high penetration near-infrared photopolymerization," Nature Communications, Nature, vol. 11(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-17251-z
    DOI: 10.1038/s41467-020-17251-z
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    Cited by:

    1. Yongqin Zhao & Junzhe Zhu & Wangyan He & Yu Liu & Xinxin Sang & Ren Liu, 2023. "3D printing of unsupported multi-scale and large-span ceramic via near-infrared assisted direct ink writing," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    2. Peng Hu & Hang Xu & Yue Pan & Xinxin Sang & Ren Liu, 2023. "Upconversion particle-assisted NIR polymerization enables microdomain gradient photopolymerization at inter-particulate length scale," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    3. Doron Kam & Omri Rulf & Amir Reisinger & Rama Lieberman & Shlomo Magdassi, 2024. "3D printing by stereolithography using thermal initiators," Nature Communications, Nature, vol. 15(1), pages 1-10, December.

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