Visible light 3D printing with epoxidized vegetable oils

Branciforti, Diego Savio; Lazzaroni, Simone; Milanese, Chiara; Castiglioni, M; Auricchio, Ferdinando; Pasini, Dario; Dondi, Daniele

doi:10.1016/j.addma.2018.11.020

Cited by 39 publications

(41 citation statements)

References 37 publications

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“…Vegetable oils are among the most commonly reported resources for biobased resins. The C=C bonds in the fatty acids are chemically modified, generally with epoxides, [ 20 ] acrylates, [ 21 ] or methacrylates, [ 22 ] which enables the formation of a thermoset network by UV curing. Modified soybean oil was one of the first vegetable oils applied in SLA to produce shape memory bioscaffolds.…”

Section: Biobased Photopolymersmentioning

confidence: 99%

“…[ 28 ] In another study, up to 30% of urethane epoxidized soybean oil was mixed with commercial acrylate compounds and applied as dual‐curing resin in SLA to yield an interpenetrating network. [ 29 ] Other vegetable oils, such as modified linseed oil, [ 20 ] castor oil, [ 22 ] and cardanol oil [ 30 ] could potentially be applied in vat photopolymerization, since these were found to exhibit UV curable properties.…”

Section: Biobased Photopolymersmentioning

confidence: 99%

See 1 more Smart Citation

Sustainable Photopolymers in 3D Printing: A Review on Biobased, Biodegradable, and Recyclable Alternatives

Voet

Guit

Loos

2020

Macromol. Rapid Commun.

163

131

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The global market for 3D printing materials has grown exponentially in the last decade. Today, photopolymers claim almost half of the material sales worldwide. The lack of sustainable resins, applicable in vat photopolymerization that can compete with commercial materials, however, limits the widespread adoption of this technology. The development of “green” alternatives is of great importance in order to reduce the environmental impact of additive manufacturing. This paper reviews the recent evolutions in the field of sustainable photopolymers for 3D printing. It highlights the synthesis and application of biobased resin components, such as photocurable monomers and oligomers, as well as reinforcing agents derived from natural resources. In addition, the design of biologically degradable and recyclable thermoset products in vat photopolymerization is discussed. Together, those strategies will promote the accurate and waste‐free production of a new generation of 3D materials for a sustainable plastics economy in the near future.

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Section: Biobased Photopolymersmentioning

confidence: 99%

Section: Biobased Photopolymersmentioning

confidence: 99%

Sustainable Photopolymers in 3D Printing: A Review on Biobased, Biodegradable, and Recyclable Alternatives

Voet

Guit

Loos

2020

Macromol. Rapid Commun.

163

131

View full text Add to dashboard Cite

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“…Creating photopolymerizable monomers with ESO has been widely explored in the polymeric research field, as it has been discovered that ESO can polymerise via a cationic ring‐opening process in the presence of photoinitiators and UV light [112,113] . In 2017, two new monomers were synthesised in a photoinduced click chemistry reaction catalysed by a copper compound.…”

Section: Soybeanmentioning

confidence: 99%

“…[111] Creating photopolymerizable monomers with ESO has been widely explored in the polymeric research field, as it has been discovered that ESO can polymerise via a cationic ring-opening process in the presence of photoinitiators and UV light. [112,113] In 2017, two new monomers were synthesised in a photoinduced click chemistry reaction catalysed by a copper compound. The first monomer was synthesised using ESO and propargyl alcohol to form a triacylglyceride structure with pendant alkynes, and the second monomer was synthesised reacting ESO with sodium azide to form a monomer with azide pendants.…”

Section: Soybean Oil As a Source Of Chemicals And Materialsmentioning

confidence: 99%

Opportunities for the Use of Brazilian Biomass to Produce Renewable Chemicals and Materials

et al. 2020

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This Review highlights the principal crops of Brazil and how their harvest waste can be used in the chemicals and materials industries. The Review covers various plants; with grains, fruits, trees and nuts all being discussed. Native and adopted plants are included and studies on using these plants as a source of chemicals and materials for industrial applications, polymer synthesis, medicinal use and in chemical research are discussed. The main aim of the Review is to highlight the principal Brazilian agricultural resources; such as sugarcane, oranges and soybean, as well as secondary resources, such as andiroba brazil nut, buriti and others, which should be explored further for scientific and technological applications. Furthermore, vegetable oils, carbohydrates (starch, cellulose, hemicellulose, lignocellulose and pectin), flavones and essential oils are described as well as their potential applications.

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“…Consequently, commonly used photosensitive 3D printing resins are mostly composed of (meth)acrylates monomer/oligomer mix with TPO or BAPO type I photoinitiator (PI) . Recently, more complex systems were proposed, but only few examples of two and three component PIS can be found in literature, and none of them was deeply investigated in terms of 3D printing performance despite the well‐known reactivity of such systems …”

Section: Introductionmentioning

confidence: 99%

Photochemical Study of a Three‐Component Photocyclic Initiating System for Free Radical Photopolymerization: Implementing a Model for Digital Light Processing 3D Printing

et al. 2019

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Vat photopolymerization technologies are promising 3D printing techniques in the field of additive manufacturing, which requires high performance and affordable photoinitiating systems (PIS). In this paper, we introduce a complex PIS based on safranine as photosensitizer and two redox additives. The photocycling mechanism is explored via laser flash photolysis (LFP) and its reactivity is investigated through real-time Fourier transform infrared spectroscopy (RT-FTIR). A model which predicts with good accuracy the change in conversion with both time and light intensity is proposed. Cure depth experi-ments are conducted and the critical energy (Ec) and penetration depth (Dp) are established for the resin used. The relationship between these parameters and the corresponding RT-FTIR results was highlighted through the role of the conversion at the gel point, allowing optimization of the formulation. Finally, high resolution complex pieces are printed with the resin, whose composition was tailored in accordance with our studies, demonstrating the viability of this PIS in digital light processing (DLP) 3D printing.

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Visible light 3D printing with epoxidized vegetable oils

Cited by 39 publications

References 37 publications

Sustainable Photopolymers in 3D Printing: A Review on Biobased, Biodegradable, and Recyclable Alternatives

Sustainable Photopolymers in 3D Printing: A Review on Biobased, Biodegradable, and Recyclable Alternatives

Opportunities for the Use of Brazilian Biomass to Produce Renewable Chemicals and Materials

Photochemical Study of a Three‐Component Photocyclic Initiating System for Free Radical Photopolymerization: Implementing a Model for Digital Light Processing 3D Printing

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