Thermochromic photoluminescent 3D printed polymeric devices based on copper-iodide clusters

Gastaldi, Matteo; Roppolo, Ignazio; Chiappone, Annalisa; Garino, Claudio; Fin, Andréa; Manachino, Matteo; Sirianni, Paolo; Viscardi, Guido; Scaltrito, Luciano; Zanetti, Marco; Bordiga, Silvia; Barolo, Claudia

doi:10.1016/j.addma.2021.102504

Cited by 6 publications

(5 citation statements)

References 52 publications

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“…The green color represents a displacement at about ± 0.1 mm and yellow and light blue colors are about ±0.2 mm. These results are to those obtained on other soybean oil-based materials printed via DLP [ 49 ].…”

Section: Resultssupporting

confidence: 84%

One-Step Method for Direct Acrylation of Vegetable Oils: A Biobased Material for 3D Printing

Mendes-Felipe,

Isusi,

Gómez-Jiménez-Aberasturi

et al. 2023

Polymers

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The substitution of fossil resources by alternatives derived from biomass is a reality that is taking on a growing relevance in the chemical and energy industries. In this sense, fats, oils, and their derived products have become indispensable inputs due to their broad functional attributes, stable price and sustainable character. Acrylated vegetable oils are considered to be very versatile materials for very broad applications (such as in adhesives, coatings or inks) since, in the presence of photoinitiators, they can be polymerized by means of UV-initiated free radical polymerizations. The usual process for the synthesis of acrylate vegetable oils consists in reacting epoxidized oils derivatives with acrylic acid. Here, the influence of different catalysts on the activity and selectivity of the process of acrylation of epoxidized soybean oil is studied. In addition, a novel one-step method for direct acrylation of vegetable oils is also explored. This new approach advantageously uses the original vegetable resource and eliminates intermediate reactions, thus being more environmentally efficient. This study offers a simple and low-cost option for synthesizing a biomass-derived monomer and studies the potential for the 3D printing of complex structures via digital light processing (DLP) 3D printing of the thus-obtained novel sustainable formulations.

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Section: Resultssupporting

confidence: 84%

One-Step Method for Direct Acrylation of Vegetable Oils: A Biobased Material for 3D Printing

Mendes-Felipe,

Isusi,

Gómez-Jiménez-Aberasturi

et al. 2023

Polymers

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“…This provides multi-color reprogrammability not limited to one-time changes [21].Copper-iodide photoluminescent clusters have desirable thermochromic and rigidochromic properties for functional and aesthetic color-changing 3D printed structures. These materials exhibit desirable thermochromic and rigidochromic characteristics, rendering them suitable for both utilitarian and visual applications within photocurable compositions [22]. A recent study introduced an ultraviolet-curable and thermochromic self-healing shape memory polymer (SMP) system, enabling color change in 3D printed structures.…”

Section: Introductionmentioning

confidence: 99%

3D printing of photochromic and thermochromic shape memory polymers for multi-functional applications

Ge,

Shan,

Liang

et al. 2023

Mater. Res. Express

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The field of 3D printing is growing rapidly and offers a wide range of potential applications, particularly with the use of Shape Memory Polymers (SMPs). However, current studies on SMP-based 3D printing have mainly focused on structural design and deformation behavior. To enhance the practicality of 3D printed structures, the ability to change color is highly desirable, especially for applications such as anti-counterfeiting, encryption, and bioinspired camouflage. This paper presents the fabrication of a UV-curable PUA-based Shape Memory Polymer (SMP) system with thermochromic and photochromic capabilities. The system is acrylate-based, making it highly UV-curable and compatible with high-resolution 3D printing techniques. Thermo/photochromic effects are achieved by adding thermochromic microcapsules to the system, resulting in printed structures that can change color upon heating or UV) exposure. The printed parts with multi-color hidden information, such as QR codes and digital numbers, were successfully demonstrated through the printing of various anti-counterfeiting patterns.And the expriment results shows the exceptional multi-functional performance including shape recovery and thermo/photochromic. The development of this UV-curable PUA-based SMP system represents a significant advancement in the application of SMP-based 3D printing for anti-counterfeiting and secure data recording.

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“…30 Gastaldi et al demonstrated the potential to create optically active devices through the utilization of copper-iodide photoluminescent clusters as intelligent dyes in conjunction with digital light processing 3D printing technology. 31 Makwakwa et al conducted a study to examine the impact of modifying PLA through the addition of boehmite alumina and a thermochromic dye, along with the application of 3D printing on polyester fabric, in the creation of smart material textiles. Their research focused on how these modifications influenced the shape-memory characteristics of the printed objects.…”

Section: Introductionmentioning

confidence: 99%

“…For instance, in a study conducted by Dharmarwardana et al they explored the thermomechanical and thermochromic properties of butoxyphenyl N‐substituted naphthalene diimide (BNDI) 30 . Gastaldi et al demonstrated the potential to create optically active devices through the utilization of copper‐iodide photoluminescent clusters as intelligent dyes in conjunction with digital light processing 3D printing technology 31 . Makwakwa et al conducted a study to examine the impact of modifying PLA through the addition of boehmite alumina and a thermochromic dye, along with the application of 3D printing on polyester fabric, in the creation of smart material textiles.…”

Section: Introductionmentioning

confidence: 99%

Preparation of thermochromic bioplastic composite filaments for 3D printing process

Khankhuean,

Sukthavorn,

Nootsuwan

et al. 2023

Vinyl Additive Technology

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This research aimed to produce thermochromic composite filaments by utilizing poly(lactic acid) (PLA) as a matrix and two distinct thermochromic additives (red and yellow colors). To produce thermochromic composite filaments with ratios ranging from 10 to 40 phr, different quantities of a thermochromic masterbatch were integrated into the PLA matrix through an extrusion process. The physical, mechanical, thermal properties, and thermochromic behavior of the composite filaments were further examined. The results indicated that the thermochromic additives had minimal impact on thermal and mechanical properties, while also revealing a two‐phase separation between the smooth matrix and the spherical particle additives in the thermochromic composite filaments. Moreover, the analysis of thermochromic behavior revealed that an increase in the ratio of thermochromic masterbatches led to more pronounced coloration and clearer color changes, especially with red and yellow thermochromics indicating temperature variations below 22°C and over 65°C, respectively. The sample containing 40 phr exhibited the most intense color and noticeable color change. Furthermore, these thermochromic composite filaments can be utilized to 3D print various prototype products.Highlights Thermochromic bioplastic composite filaments for 3D printing were successfully prepared. The thermochromic behavior analysis unveiled vivid coloration with distinct and more pronounced color changes.

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Thermochromic photoluminescent 3D printed polymeric devices based on copper-iodide clusters

Cited by 6 publications

References 52 publications

One-Step Method for Direct Acrylation of Vegetable Oils: A Biobased Material for 3D Printing

One-Step Method for Direct Acrylation of Vegetable Oils: A Biobased Material for 3D Printing

3D printing of photochromic and thermochromic shape memory polymers for multi-functional applications

Preparation of thermochromic bioplastic composite filaments for 3D printing process

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