A 4D Printed Architecture of Shape Memory Vitrimer based on Commercial Poly(ε-caprolactone)
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초록
내용
Vitrimers are rapidly emerging as a material that combines the advantages of existing thermoplastic resins and thermosetting resins due to their recyclability through dynamic network exchange reactions. Based on these characteristics, vitrimers can be used to reduce waste, and it is considered promising as a 3D printing material. However, there are disadvantages of being manufactured from a limited variety and expensive materials, and limitations on recycling and reprintability still remain. Herein, based on a poly(ε-caprolactone) (PCL) high value-added material, we would like to report a 4D printable vitrimer that is easy to rework and reprint. Compared to commercialized PCL, vitrimer products with 3D printing have excellent heat resistance and can be repeatedly reprocessed and recycled through 3D printing based on fused deposition modeling (FDM).