The flexible silicone elastomers have a wide range of applications in high-end fields such as electronics,medical,aerospace,due to their biocompatibility,electrical insulation,water resistance,and high/low temperature resistance.Silicone e-lastomers are one of the most researched polymers in the field of 3D printing.The 3D printing technologies for silicone rubber in-clude ink jet printing,material extrusion,embedded curing printing,stereolithography,powder bed sintering,etc.,which are used for processing and preparation of flexible sensors,rehabilitation insoles,soft robots,optical lenses,flexible electronics,and other devices.However,there are still problems such as low accuracy in printing,expensive,lack of printing materials,and dif-ficulty in printing complex structures.In recent years,researchers have developed the technology of silicone rubber printing,polymer molecular design and materials innovation,improved the performance of 3D printed parts and expanded the applications.This article reviews the research progress of 3D printing of silicone elastomers in recent years.
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