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Multimaterial actinic spatial control 3D and 4D printing

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  • J. J. Schwartz

    (University of Washington
    University of Wisconsin)

  • A. J. Boydston

    (University of Washington
    University of Wisconsin)

Abstract

Production of objects with varied mechanical properties is challenging for current manufacturing methods. Additive manufacturing could make these multimaterial objects possible, but methods able to achieve multimaterial control along all three axes of printing are limited. Here we report a multi-wavelength method of vat photopolymerization that provides chemoselective wavelength-control over material composition utilizing multimaterial actinic spatial control (MASC) during additive manufacturing. The multicomponent photoresins include acrylate- and epoxide-based monomers with corresponding radical and cationic initiators. Under long wavelength (visible) irradiation, preferential curing of acrylate components is observed. Under short wavelength (UV) irradiation, a combination of acrylate and epoxide components are incorporated. This enables production of multimaterial parts containing stiff epoxide networks contrasted against soft hydrogels and organogels. Variation in MASC formulation drastically changes the mechanical properties of printed samples. Samples printed using different MASC formulations have spatially-controlled chemical heterogeneity, mechanical anisotropy, and spatially-controlled swelling that facilitates 4D printing.

Suggested Citation

  • J. J. Schwartz & A. J. Boydston, 2019. "Multimaterial actinic spatial control 3D and 4D printing," Nature Communications, Nature, vol. 10(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-08639-7
    DOI: 10.1038/s41467-019-08639-7
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    Cited by:

    1. Qingrui Wang & Xiaoyong Tian & Daokang Zhang & Yanli Zhou & Wanquan Yan & Dichen Li, 2023. "Programmable spatial deformation by controllable off-center freestanding 4D printing of continuous fiber reinforced liquid crystal elastomer composites," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    2. Zizheng Fang & Yunpeng Shi & Hongfeng Mu & Runzhi Lu & Jingjun Wu & Tao Xie, 2023. "3D printing of dynamic covalent polymer network with on-demand geometric and mechanical reprogrammability," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    3. Shakeel, Muhammad & Rehman, Khalid & Ahmad, Salman & Amin, Mohsin & Iqbal, Nadeem & Khan, Arshad, 2021. "A low-cost printed organic thermoelectric generator for low-temperature energy harvesting," Renewable Energy, Elsevier, vol. 167(C), pages 853-860.
    4. Liang Yue & S. Macrae Montgomery & Xiaohao Sun & Luxia Yu & Yuyang Song & Tsuyoshi Nomura & Masato Tanaka & H. Jerry Qi, 2023. "Single-vat single-cure grayscale digital light processing 3D printing of materials with large property difference and high stretchability," Nature Communications, Nature, vol. 14(1), pages 1-12, December.
    5. Kyle C. H. Chin & Grant Ovsepyan & Andrew J. Boydston, 2024. "Multi-color dual wavelength vat photopolymerization 3D printing via spatially controlled acidity," Nature Communications, Nature, vol. 15(1), pages 1-8, December.

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