Nanoparticle-enhanced vat photopolymerization in additive manufacturing

Area of Science:

• Materials Science
• Polymer Chemistry
• Nanotechnology

Background:

• Photopolymerization is crucial for applications like 3D printing.
• Improving photopolymerization efficiency (rate, conversion, resolution) is an ongoing challenge.
• Nanoparticles offer unique properties for enhancing photopolymerization processes.

Purpose of the Study:

• To review and summarize the current literature on nanoparticle-enhanced photopolymerization.
• To identify and categorize different types of nanoparticles and their enhancement mechanisms.
• To explore the impact of these advancements on additive manufacturing, specifically vat photopolymerization.

Main Methods:

• Comprehensive literature search of indexed databases.
• Categorization of studies based on nanoparticle type and enhancement mechanism.
• Analysis of various assessment methods used in the reviewed studies.

Main Results:

• Metallic, semiconducting, upconversion, and insulating nanoparticles enhance photopolymerization.
• Key enhancement mechanisms include localized surface plasmon resonance, photocatalytic effect, upconversion, and two-photon absorption.
• Nanoparticle selection and application methods vary widely.

Conclusions:

• Nanoparticle integration offers significant improvements in photopolymerization performance.
• These advancements hold great potential for revolutionizing vat photopolymerization in additive manufacturing.
• Further research into NIR light 3D printing and opaque material printing is recommended.