Versatile Hydrogel Based on a Controlled Microphase-Separation Strategy for Both Liquid- and Solid-Phase 3D Printing
2024

New Hydrogel for 3D Printing Flexible Devices

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Author Information

Author(s): Wu Qirui, Xu Yidan, Han Songjiu, Chen Anbang, Zhang Jiayu, Chen Yujia, Yang Xiaoxiang, Guan Lunhui

Primary Institution: Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences

Hypothesis

Can a two-phase hydrogel be developed to enhance 3D printing for flexible devices?

Conclusion

The TP-3DPgel hydrogel can be used for both liquid-phase and solid-phase 3D printing, demonstrating excellent mechanical properties and versatility.

Supporting Evidence

  • TP-3DPgel can switch between liquid and solid states by adjusting pH.
  • It exhibits high stretchability over 1100% and low hysteresis.
  • TP-3DPgel is suitable for both DLP and DIW 3D printing methods.
  • The hydrogel maintains excellent mechanical properties after multiple cycles of loading and unloading.
  • Various functional devices, including sensors and energy storage devices, were successfully fabricated using TP-3DPgel.

Takeaway

Scientists created a special gel that can change from liquid to solid, making it great for printing flexible gadgets like sensors and energy storage devices.

Methodology

The study involved creating a two-phase hydrogel ink through controlled microphase separation, which was tested for its 3D printing capabilities.

Limitations

The study does not address long-term stability or environmental effects on the hydrogel's performance.

Digital Object Identifier (DOI)

10.1021/acsnano.4c08896

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