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Direct printing of functional 3D objects using polymerization-induced phase separation.

Bhavana Deore¹, Kathleen L Sampson², Thomas Lacelle²

¹Security and Disruptive Technologies, National Research Council Canada, 100 Sussex Drive, Ottawa, ON, K1A 0R6, Canada. Bhavana.Deore@nrc-cnrc.gc.ca.

Nature Communications

|January 5, 2021

Summary

This summary is machine-generated.

3D printing advanced material integration using vat polymerization. This method controls material placement for creating functional objects like sensors and antennas.

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Area of Science:

Materials Science
Polymer Chemistry
Additive Manufacturing

Background:

Traditional 3D printing faces challenges in integrating multiple materials for functional objects.
Vat polymerization offers a polymer chemistry approach to create smart objects with controlled material properties.

Purpose of the Study:

To demonstrate how phase separation in vat polymerization can control material positioning.
To achieve desirable morphological and functional properties in 3D printed objects.

Main Methods:

Modulating gelation kinetics, cross-linking density, and material diffusivity.
Judicious selection of photoresin components for controlled phase separation.

Main Results:

Generated a continuum of morphologies including functional coatings, gradients, and composites.
Fabricated 3D piezoresistive sensors, 5G antennas, and antimicrobial objects.

Conclusions:

Vat polymerization enables precise spatial control of dissimilar materials in 3D printing.
This approach facilitates the creation of advanced functional and smart objects.