1. School of Mechanical Engineering, Guangxi University, Nanning 530004, China 2. State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Guangxi University, Nanning 530004, China 3. Institute of Laser Intelligent Manufacturing and Precision Processing, School of Mechanical Engineering, Guangxi University, Nanning 530004, China 4. College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China 5. State Key Laboratory of Precision Manufacturing for Extreme Service Performance, Central South University, Changsha 410083, China
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.
Hydrogels could not support shapes and collapsed (after 17 d of incubation)
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Tab.2
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Abbreviations
Ad
Adamantane
c-CNT
Carboxylic carbon nanotube
DIW
Direct ink writing
DLP
Digital light processing
FDM
Fused deposition modeling
GelMA
Gelation methacryloyl
HGGelMA
Host?guest gelatin methacryloyl
HGSM
Host-guest supramolecule
NVP
N-vinyl-2-pyrrolidone
PAA
Polyacrylic acid
PPy
Polypyrrole
SC
Supercapacitor
SLA
Stereophotography
SLS
Selective laser sintering
TPP
Two-photon polymerization
β-CD
β-cyclodextrin
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