Phosphorescent bio-based resin for digital light processing (DLP) 3D-printing

Maturi, Mirko; Pulignani, Carolina; Locatelli, Erica; Buratti, Veronica Vetri; Tortorella, Silvia; Sambri, Letizia; Franchini, Mauro Comes

doi:10.1039/d0gc01983f

Cited by 37 publications

(34 citation statements)

References 51 publications

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“…The G and E monomers were mixed, in differen molar ratios, to test the reactivity and the performance; a third component, a cross-linke was then introduced to achieve the high photo-reactivity necessary for the SLA proces Two cross-linkers were selected, that is, a widely used commercial one (trimethylolpro pane-trimethacrylate, T in Figure 10) and a natural synthesized one (vanillin-dimethacry late, V in Figure 10). Maturi et al [65] developed a new resin for digital light processing (DLP)-based 3D printing. The important feature of this resin was the extremely high bio-based content of 96.5%.…”

Section: The Photopolymerization Of Lignin and Its Derivativesmentioning

confidence: 99%

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UV-Curable Bio-Based Polymers Derived from Industrial Pulp and Paper Processes

et al. 2021

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Bio-based monomers represent the future market for polymer chemistry, since the political economics of different states promote green ventures toward more sustainable materials and processes. Industrial pulp and paper processing represent a large market that could advance the use of by-products to avoid waste production and reduce pollution. Lignin represents the most available side product that can be used to produce a bio-based monomer. This review is concentrated on the possibility of using bio-based monomer derivates from pulp and the paper industry for UV-curing processing. UV-curing represents the new frontier for thermoset production, allowing a fast reaction cure, less energy demand, and the elimination of solvent. The growing demand for new monomers increases research in the environmental field to substitute for petroleum-based products. This review provides an overview of the main monomers and relative families of compounds derived from industrial processes that are suitable for UV-curing. Particular focus is given to the developments reached in the last few years concerning lignin, rosin and terpenes and the related possible applications of these in UV-curing chemistry.

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Section: The Photopolymerization Of Lignin and Its Derivativesmentioning

confidence: 99%

“…Maturi et al [ 65 ] developed a new resin for digital light processing (DLP)-based 3D printing. The important feature of this resin was the extremely high bio-based content of 96.5%.…”

Section: Uv-curable Monomers From the Pulp And Paper Industrymentioning

confidence: 99%

UV-Curable Bio-Based Polymers Derived from Industrial Pulp and Paper Processes

et al. 2021

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“…Despite the lower intrinsic reactivity of its carbon–carbon double bond toward UV-induced radical polymerization, itaconic acid has been successfully used as a UV-curable building block to produce numerous crosslinkable resins for coating, printing ink, or additive manufacturing applications. − However, in the case of itaconic acid, the synthesis of smaller compounds with low viscosity and high reactivity is much more challenging than the design of UV-curable polymeric resins. Indeed, when used in a linear or hyperbranched polymer, it is possible to increase the reactivity of the material by increasing the double bond density and the accessibility of these double bonds or change the components.…”

Section: Introductionmentioning

confidence: 99%

Itaconic Acid-Based Reactive Diluents for Renewable and Acrylate-Free UV-Curing Additive Manufacturing Materials

Arnaud

Malitowski

Casamayor

et al. 2021

ACS Sustainable Chem. Eng.

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Reactive diluents, small monomers with low viscosity, and reactive groups are widely used in UV-curable materials for additive manufacturing (3D-printing) to optimize the processability and properties of the cured objects. Most of these reactive diluents, such as acrylic acid esters, are derived from fossil resources and possess strong irritation and allergenic potential. Therefore, more benign bio-based reactive diluents for UV-curing materials are of high interest. Herein, we present the synthesis of novel monomeric compounds derived from bio-based itaconic acid, such as diesters and hydroxyesters. Depending on the molecular architecture, the viscosity and reactivity can be significantly influenced. The most promising monomers were formulated with bio-based polyester itaconates and the properties of the materials were evaluated. The addition of these reactive diluents resulted in a significant reduction of the viscosity and an improved curing behavior. Finally, two of these novel reactive diluents were successfully applied in UV-curing additive manufacturing processes.

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“…164 This criterion limits the materials that can be used: high molecular weight photopolymers are often too viscous to be used on their own, requiring the addition of solvents or reactive diluents (low viscosity monomers) to reduce the viscosity of the photoresin. 165,166 For example, Strohmeier et al reported the use of divinyl ethers as reactive diluents to reduce the viscosity of methacrylated liquid isoprene rubber from 79 Pa s to <6 Pa s, allowing it to be used with DLP printing. 167 Photosensitive slurries used in ceramic VP need to carefully manage their solid loadings such that they are low enough for their viscosities to be manageable but still sufficiently high that the final ceramic part has the desired properties.…”

Section: Viscositymentioning

confidence: 99%

Three‐dimensional chemical reactors: in situ materials synthesis to advance vat photopolymerization

Yee

Greer

2021

Polymer International

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Vat photopolymerization (VP) is one of the most remarkable additive manufacturing techniques today and has been used for a variety of applications, from materials research to product manufacturing. The main challenge with VP is the limited choice of compatible materials, which motivates significant interest in VP materials development. We provide a brief overview of the materials that are currently accessible via VP and highlight recent advances in the field. We also provide perspective on expanding the library of materials compatible with VP using in situ materials synthesis.

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Phosphorescent bio-based resin for digital light processing (DLP) 3D-printing

Abstract: This work presents a novel bio-based resin for DLP 3D printing using a photocurable polyester obtained from renewable resources. The ink is formulated with phosphorescent Ir-complexes and printed for both rigid and flexible structures.

Cited by 37 publications

References 51 publications

UV-Curable Bio-Based Polymers Derived from Industrial Pulp and Paper Processes

UV-Curable Bio-Based Polymers Derived from Industrial Pulp and Paper Processes

Itaconic Acid-Based Reactive Diluents for Renewable and Acrylate-Free UV-Curing Additive Manufacturing Materials

Three‐dimensional chemical reactors: in situ materials synthesis to advance vat photopolymerization

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