Photopolymerization upon LEDs: new photoinitiating systems and strategies

Dietlin, Céline; Schweizer, Stéphane; Xiao, Pu; Zhang, Jing; Morlet‐Savary, Fabrice; Graff, Bernadette; Fouassier, Jean‐Pierre; Lalevée, Jacques

doi:10.1039/c5py00258c

Cited by 378 publications

(354 citation statements)

References 94 publications

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“…[12,13] The role of photo absorber is to control the curing depth to ensure satisfied printing accuracy. We used Di(ethylene glycol) diacrylate (DEGDA) and 1,6-Hexanediol diacrylate (HDDA) with weight ratio of 17:3 as polymerizable components.…”

Section: Resultsmentioning

confidence: 99%

Photochromic Resins for Secondary Printing in Additive Manufacturing

Wang¹,

Wang²

2017

Proceedings of the 3rd Annual International Conference on Advanced Material Engineering (AME 2017)

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Abstract. 3D printing has been identified as the main technique for the coming Industry 4.0 due to its cyber-physical systems and the ability to create complicated 3D object in a fast yet accurate manner. However, the polymers-based 3D printings are currently mainly used for prototype or mold printing due to the lack of functional polymer resins. Functional 3D printing has been one of the most important goal of scientific research and industry development. In the present work, we developed the 3D printable resin which allows the printing of 3D structures with photochromic properties, that is, their color can change reversibly with different light irradiation. By using the reversible photochromic properties, we developed the secondary printing technology that allows the printing of multicolor and different color patterns on the as-printed 3D structures. This will be of great importance and indeed for applications in jewelry design, UV indicator, optically modulated sensors, smart windows, display, package indicators, and so on.

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Section: Resultsmentioning

confidence: 99%

Photochromic Resins for Secondary Printing in Additive Manufacturing

Wang¹,

Wang²

2017

Proceedings of the 3rd Annual International Conference on Advanced Material Engineering (AME 2017)

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“…For this purpose, a viable alternative would be the in situ photopolymerization of polymer electrolytes incorporating the Co(II)/Co(III)-based mediator. Indeed, photopolymerization is the preparation technique closest to the industrial requirements for DSC manufacturing, since it does not require solvents, catalysts and purification/separation steps [63,67,[82][83][84].…”

Section: Polymeric Matrices-based Electrolytes Containing Cobalt Compmentioning

confidence: 99%

Cobalt-Based Electrolytes for Dye-Sensitized Solar Cells: Recent Advances towards Stable Devices

et al. 2016

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Abstract:Redox mediators based on cobalt complexes allowed dye-sensitized solar cells (DSCs) to achieve efficiencies exceeding 14%, thus challenging the emerging class of perovskite solar cells. Unfortunately, cobalt-based electrolytes demonstrate much lower long-term stability trends if compared to the traditional iodide/triiodide redox couple. In view of the large-scale commercialization of cobalt-based DSCs, the scientific community has recently proposed various approaches and materials to increase the stability of these devices, which comprise gelling agents, crosslinked polymeric matrices and mixtures of solvents (including water). This review summarizes the most significant advances recently focused towards this direction, also suggesting some intriguing way to fabricate third-generation cobalt-based photoelectrochemical devices stable over time.

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“…Photoinitiation systems are either one-component (photoinitiator) or some twocomponent or multi-component (photoinitiator/ additive),Photoinitiator is the key factor to control the photopolymerization process. The efficiency of photoinitiator is directly determined by its light absorption (absorption wavelength, molar extinction coefficient) and reactivity [3].…”

Section: Introductionmentioning

confidence: 99%

Characterization of the Uv - Visible Absorption Spectra of Commonly Used Photoinitiators

Rongxia¹,

Shiyong²,

Xu³

et al. 2017

Topics in Intelligent Computing and Industry Design (ICID)

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UV-LED curing has the advantages of energy saving and no ozone, mercury pollution has become one of the recently developed green printing technology.The photoinitiator used to meet the requirements of food packaging materials, but also in the LED issued by the central wavelength of 385nm or 395nm light absorption can stimulate the photopolymerization.In this paper, the absorption spectra of 12 kinds of photoinitiators, such as TPO, BDK, ITX, DETX, 819,784,127,369,MBF,199,796,were characterized by UV-Vis spectrophotometer. Prepared UV-LED curing varnish,The performance of the photoinitiator was analyzed.According to the requirements of food safety regulations, the photoinitiators which could be used for UV-LED curing were obtained TPO,

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Photopolymerization upon LEDs: new photoinitiating systems and strategies

Abstract: The use of LEDs as novel and efficient light sources for the photopolymerization of various monomers (acylate, epoxy), interpenetrating polymer networks and thiols–ene, leads to the development of novel photoinitiating systems adapted for the LED emission.

Cited by 378 publications

References 94 publications

Photochromic Resins for Secondary Printing in Additive Manufacturing

Photochromic Resins for Secondary Printing in Additive Manufacturing

Cobalt-Based Electrolytes for Dye-Sensitized Solar Cells: Recent Advances towards Stable Devices

Characterization of the Uv - Visible Absorption Spectra of Commonly Used Photoinitiators

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