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Open AccessJournal ArticleDOI

Photopolymerization in 3D Printing

Ali Bagheri, +1 more
- Vol. 1, Iss: 4, pp 593-611
TLDR
The field of 3D printing is continuing its rapid development in both academic and industrial research environments as mentioned in this paper, which offers flexibility over the final properties of the 3D printed materials (such as optical, chemical and mechanical properties) using versatile polymer chemistry.
Abstract
The field of 3D printing is continuing its rapid development in both academic and industrial research environments. The development of 3D printing technologies has opened new implementations in rapid prototyping, tooling, dentistry, microfluidics, biomedical devices, tissue engineering, drug delivery, etc. Among different 3D printing techniques, photopolymerization-based process (such as stereolithography and digital light processing) offers flexibility over the final properties of the 3D printed materials (such as optical, chemical, and mechanical properties) using versatile polymer chemistry. The strategy behind the 3D photopolymerization is based on using monomers/oligomers in liquid state (in the presence of photoinitiators) that can be photopolymerized (via radical or cationic mechanism) upon exposure to light source of different wavelengths (depending on the photoinitiator system). An overview of recent evolutions in the field of photopolymerization-based 3D printing and highlights of novel 3D print...

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Citations
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Journal ArticleDOI

Hydrogel Polyester Scaffolds via Direct-Ink-Writing of Ad Hoc Designed Photocurable Macromonomer

TL;DR: In this article , a degradable macromonomer was developed to serve as ink for 3D printing technologies based on direct-ink-writing, and the macromer was designed to be cross-linkable under the radical mechanism, to impart hydrophilicity to the final material, and to have rheological properties matching the printer's requirements.
Journal ArticleDOI

A Comprehensive Review of Friction Stir Additive Manufacturing (FSAM) of Non-Ferrous Alloys

TL;DR: Friction stir additive manufacturing (FSAM) is a subset of solid-state additive manufacturing that produces big area multi-layered components through plate addition fashion using the friction stir welding (FSW) concept as discussed by the authors .
Journal ArticleDOI

Model for polymerization and self-deactivation in two-photon nanolithography

- 11 Jul 2022 - 
TL;DR: In this paper , a mathematical model is developed to describe the photochemical processes in two-photon nanolithography, including two-step absorption leading to initiation and self-deactivation of the photoinitiator by laser irradiance, polymer chain propagation, termination, inhibition, and inhibitor diffusion.
Journal ArticleDOI

Photosensitive Si3N4 slurry with combined benefits of low viscosity and large cured depth for digital light processing 3D printing

TL;DR: Wang et al. as mentioned in this paper proposed a new formulation strategy to prepare Si3N4 slurry, starting from the optimization of monomer ratio, they systematically optimized powder particle size, dispersant and photoinitiator on the rheological properties and curing properties.
Book ChapterDOI

Biomaterials and Scaffold Fabrication Techniques for Tissue Engineering Applications

TL;DR: In this paper, the authors presented the fabrication scaffold techniques for tissue engineering applications, which can be used as a personalized medication to treat the patient due to its high precision, pore size, mechanical strength, surface topography, cell proliferation, and cell adhesion.
References
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Journal ArticleDOI

Thiol–Ene Click Chemistry

TL;DR: The radical-mediated thiol-ene reaction has all the desirable features of a click reaction, being highly efficient, simple to execute with no side products and proceeding rapidly to high yield.
Journal ArticleDOI

Hydrogels as Extracellular Matrix Mimics for 3D Cell Culture

TL;DR: The use of both synthetic and natural hydrogels as scaffolds for three-dimensional cell culture as well as synthetic hydrogel hybrids that incorporate sophisticated biochemical and mechanical cues as mimics of the native extracellular matrix are discussed.
Journal ArticleDOI

Polymers for 3D Printing and Customized Additive Manufacturing

TL;DR: Polymers are by far the most utilized class of materials for AM and their design, additives, and processing parameters as they relate to enhancing build speed and improving accuracy, functionality, surface finish, stability, mechanical properties, and porosity are addressed.
Journal ArticleDOI

3D printing of polymer matrix composites: A review and prospective

TL;DR: In this paper, the authors give an overview on 3D printing techniques of polymer composite materials and the properties and performance of 3D printed composite parts as well as their potential applications in the fields of biomedical, electronics and aerospace engineering.
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