The molecular design of photo-curable and high-strength benzoxazine for 3D printing

The molecular design of photo-curable and high-strength benzoxazine for 3D printing

Low viscosity photo-curable benzoxazines (BZs) are designed and synthesized for use in stereolithography 3D printing. An initial investigation shows that the thermally polymerized polybenzoxazines (PBZs) have remarkably high T-g (264 degrees C) and flexural modulus (4.91 GPa) values. Subsequently, t...

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Bibliographic Details
Main Authors: Lu, Yong, Ng, Joseph Kok Wei, Chen, Hui, Chen, Xuelong, Lim, Jacob Song Kiat, Yan, Weili, Hu, Xiao
Other Authors: School of Materials Science and Engineering
Format: Article
Language:English
Published: 2022
Subjects:
Engineering::Materials
Benzoxazines
Thermosets
Online Access:https://hdl.handle.net/10356/160456
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Institution: Nanyang Technological University
Language: English
Description
Summary:Low viscosity photo-curable benzoxazines (BZs) are designed and synthesized for use in stereolithography 3D printing. An initial investigation shows that the thermally polymerized polybenzoxazines (PBZs) have remarkably high T-g (264 degrees C) and flexural modulus (4.91 GPa) values. Subsequently, the formulated photoprintable resins are employed for use in high-resolution projection micro-stereolithography (P mu SL) printing. Complex PBZ 3D structures can be achieved from the as-printed objects after they are thermally treated. These findings advance the design of BZ monomers for photopolymerization-based 3D printing and offer a method for the efficient fabrication of high-performance thermosets for various demanding engineering applications.

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