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Reconfigurable Polymer Networks for Digital Light Processing 3D Printing.

Zizheng Fang1,2,3, Yunpeng Shi2, Yuhua Zhang4,5

  • 1Ningbo Research Institute Zhejiang University, Ningbo 315807, China.

ACS Applied Materials & Interfaces
|March 23, 2021
PubMed
Summary
This summary is machine-generated.

Researchers developed a reconfigurable polymer network for digital light processing (DLP) 3D printing. This innovation allows post-printing property manipulation, transforming rigid 3D printed objects into liquids via thermal treatment.

Keywords:
3D printingamidationesterphotocurablereconfigurable network

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Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Additive Manufacturing

Background:

  • Developing functional 3D printing resins is crucial for expanding applications.
  • Current resin formulation is limited by the need for rapid gelation during printing.

Purpose of the Study:

  • To introduce a reconfigurable polymer network compatible with digital light processing (DLP) 3D printing.
  • To enable post-printing manipulation of material properties, decoupling printing and final characteristics.

Main Methods:

  • Utilizing a reconfigurable polymer network in DLP 3D printing.
  • Implementing post-thermal treatment involving ester amidation to alter the polymer network.
  • Characterizing changes in material properties, such as Young's modulus.

Main Results:

  • Demonstrated successful 3D printing of objects using the reconfigurable network.
  • Showcased property remanipulation through post-thermal treatment, significantly reducing Young's modulus by 50 times.
  • Achieved transformation of rigid printed parts into low-viscosity liquids.

Conclusions:

  • The developed strategy effectively decouples the 3D printing process from the final material properties.
  • This approach provides a versatile method for creating 3D printed objects with tunable functionalities.
  • Opens new avenues for advanced applications requiring adaptable material characteristics.