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Stereolithographic 3D Printing with Renewable Acrylates

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Published on: September 12, 2018

A Bio-Based Resin for a Multi-Scale Optical 3D Printing.

Edvinas Skliutas¹, Migle Lebedevaite², Sigita Kasetaite²

¹Laser Research Center, Physics Faculty, Vilnius University, Sauletekio Ave. 10, Vilnius, LT-10223, Lithuania.

Scientific Reports

|June 18, 2020

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This study introduces a novel bio-based resin from soybeans for optical 3D printing (O3DP). This sustainable material enables efficient, low-waste rapid prototyping with sub-micrometer accuracy, replacing petroleum-based plastics.

Area of Science:

Materials Science
Additive Manufacturing
Biotechnology

Background:

Renewable materials offer sustainable alternatives to petroleum-derived plastics, providing benefits like bio-compatibility and recyclability.
Optical 3D printing (O3DP) is an additive manufacturing technique for rapid prototyping, typically using petroleum-based resins.
There is a need for sustainable resins in O3DP to reduce environmental impact and enhance material properties.

Purpose of the Study:

To develop and validate a bio-based resin for optical 3D printing (O3DP).
To demonstrate the feasibility of using soybean-derived resin for nano- to macro-scale 3D object fabrication.
To explore the potential of O3DP with sustainable materials as a breakthrough in rapid prototyping.

Main Methods:

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A single bio-based resin derived from soybeans was synthesized and characterized.

The resin was employed in state-of-the-art laser nanolithography and a standard table-top 3D printer.

Fabrication of sub-micrometer accuracy 3D objects and industrial small-batch production prototypes (chess figures) were performed.

Main Results:

The bio-based resin is suitable for O3DP across nano- to macro-scales.
Sub-micrometer accuracy 3D objects were reproducibly fabricated using both advanced and conventional O3DP setups.
The resin can be processed without a photoinitiator, simplifying the O3DP process.

Conclusions:

A novel, photoinitiator-free, bio-based resin from soybeans is demonstrated as a viable material for O3DP.
This advancement facilitates sustainable rapid prototyping, moving O3DP away from petroleum-derived photopolymers.
The developed approach represents a significant step towards eco-friendly additive manufacturing and material innovation.