3D-printed self-healing, biodegradable materials and their applications

Abstract

3D printing is a versatile technology capable of rapidly fabricating intricate geometric structures and enhancing the performance of flexible devices in comparison to conventional fabrication methods. However, 3D-printed devices are susceptible to failure as a result of minuscule structural impairments, thereby impacting their overall durability. The utilization of self-healing, biodegradable materials in 3D printing holds immense potential for increasing the longevity and safety of devices, thereby expanding the application prospects for such devices. Nevertheless, enhancing the self-repairing capability of devices and refining the 3D printing performance of self-healing materials are still considerable challenges that need to be addressed to achieve optimal outcomes. This paper reviews recent developments in the field of advancements in 3D printing using self-healing and biodegradable materials. First, it investigates self-healing and biodegradable materials that are compatible with 3D printing techniques, discussing their printability, material properties, and factors that influence print quality. Then, it explores practical applications of self-healing and biodegradable 3D printing technology in depth. Finally, it critically offers practical perspectives on this topic.

Graphical abstract

Keywords

3D printing / self-healing / biodegradable / soft materials / covalent bonds / non-covalent bonds

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Acknowledgements

This work was supported by the National Key R&D Program of China (Grant No. 2022YFB4601601), the Key R&D Program of Guangxi Province, China (Grant No. GKAB23026101), and Guangxi Natural Science Foundation, China (Grant No. 2023GXNSFBA026287).

Conflict of Interest

The authors declare that they have no conflict of interest.

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