Bibliographies thématiques / UV-LED curing

Littérature scientifique sur le sujet « UV-LED curing »

Auteur : Grafiati

Publié le 14 mars 2023

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Articles de revues sur le sujet "UV-LED curing"

Ho, Shin-Chan, Jong-Gu Kim, Jin-Who Hong, Tae-Jung Ahn et Hyun-Kyoung Kim. « Curing Properties of UV-LED Curable Color Coating ». Adhesion and Interface 13, n^o 1 (31 mars 2012) : 31–37. http://dx.doi.org/10.17702/jai.2012.13.1.031.

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Ayub, Nur Farizah, Shahrir Hashim, Jamarosliza Jamaluddin, Roshafima Rasit Ali et Nadia Adrus. « UV LED Curing Formulation for Polyacrylamide Hydrogels ». Advanced Materials Research 1125 (octobre 2015) : 84–88. http://dx.doi.org/10.4028/www.scientific.net/amr.1125.84.

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Current studies showed that UV LED system is a green technology and highly efficient as compared to UV Mercury (UV Hg) system. In this study, the UV LED curing formulations of polyacrylamide (PAAm) hydrogels were developed. The formulations consisted of acrylamide (AAm) as a main monomer,N,N’-methylenebisacrylamide as a crosslinker and photoinitiator. UV LED emits monochromatic light sources only (365 nm or 385 nm). Thus, in order to developed formulation of UV LED curable hydrogels, a suitable water soluble photoinitiator (i.e. λ ~ 365 nm) has to be employed. A commercially available photoinitiator Oligo [2-hydroxy-2-methyl-1-[4-(1-methylvinyl) phenyl] propanone] under the trade name Chivacure 300 (λ ~ 330 nm) was chosen in the first formulations. However, due to limited solubility in water, addition of tetrahydrofuran (THF) at 9.5:0.5 ratio of water/THF was required for Chivacure 300. We also synthesized a photoinitiator based on 2,2-dimethoxy-2-phenyl acetophenone (DMPA) and methylated-β-cyclodextrin (MβCD) to be used in the second formulation. The complexation of DMPA and MβCD resulted in transparent and water-soluble supramolecular-structured photoinitiator (SSPI) (λ ~ 330 nm). Both formulations were irradiated using UV LED system (Hoenle AG, Germany, 365 nm) for 15 min. Synthesis of PAAm hydrogels with both photoinitiators has yielded almost complete conversion of hydrogels (> 80 %). Clearly, this study has revealed that enhanced formulation of UV LED curable hydrogels are due to appropriate choice of excellent water-solubility photoinitiators (Chivacure 300 and modified DMPA). We concluded that UV LED is an important tool for curing hydrogel formulations of various acrylate water-based monomers.

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Landry, Véronic, Pierre Blanchet, Gabrielle Boivin, Jean-François Bouffard et Mirela Vlad. « UV-LED Curing Efficiency of Wood Coatings ». Coatings 5, n^o 4 (18 décembre 2015) : 1019–33. http://dx.doi.org/10.3390/coatings5041019.

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Zhou, Rui Hua, et Xiu Yun Tian. « Irradiation System Design of Rotating Painting Ink Curing Based on UV LED ». Applied Mechanics and Materials 568-570 (juin 2014) : 1737–42. http://dx.doi.org/10.4028/www.scientific.net/amm.568-570.1737.

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The effects of painting ink’s color on UV absorptivity and UV-light wavelength on curing depth in the process of rotating curing are analysed. Aiming at radial uneven curing, the scheme is proposed that using the UV LED with wavelengths of 365nm and 395nm to form a fan-shaped array on cylindrical surface. The curing system can achieve UV irradiance be enhanced gradually along the radial, and the technique problem of uneven curing is solved. The simulation result shows that the curing system meets design requirements on Tracepro.

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Bao, Chuan Mei, Chang Liang Liu, Chun Jun Li, Gu Chang Wang, Fei Gao et Zhe Jing Yi. « A Security UV Curing Device Based on LED Array ». Advanced Materials Research 1037 (octobre 2014) : 152–55. http://dx.doi.org/10.4028/www.scientific.net/amr.1037.152.

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The study mentioned a curing equipment with UV LED array based on pyroelectric sensor and AP3706, which is based on the primary side control circuit so that it can complete the LED array constant voltage constant current output.the light source drive can output the constant voltage and constant current. The sensing signal processing signal integrated circuit BISS0001 as the pyroelectric sensor amplifier circuit as core, with relay making up the protection module of curing device. The experimental results show that, the curing equipment can realize the stable and homogeneous UV output, and when a human body in front of LED, the array will disabled to keep the human body away from damage UV induced.

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Yi, Qing, Xian Fu Wei, Bei Qing Huang et Qi Wang. « Effect of Monomer on Performance of UV-LED Inkjet Ink ». Applied Mechanics and Materials 469 (novembre 2013) : 68–73. http://dx.doi.org/10.4028/www.scientific.net/amm.469.68.

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UV-LED inkjet ink is a promising environmental ink which has advantages as higher reaction speed, higher efficiency and energy saving, better environmental protection, its research and development can contribute to realizing green printing and its important for food packing security. Monomer is the important component of the UV-LED ink, in order to investigate the impact of monomer on dispersivity of UV-LED inkjet ink, seven kinds of monomers were chosen to prepare cyan color paste respectively and test their particle size and distribution. Then the ratio of co-monomers was achieved by formulation experiment to obtain the best dispersivity. In order to improve the performance of the UV-LED inkjet ink, different monomers were used to make ink samples separately, viscosity, surface tension, curing rate of the ink and flexibility and adhesion were tested. In the end, the ratio of co-monomers was achieved by formulation experiment to obtain the best overall performance. The results show that the monomer has a significant influence on the dispersion and curing rate of the UV-LED inkjet ink, but also has a great impact on film-forming properties of the ink after UV-LED curing.

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Letson, Benjamin C., Simon Barke, Samantha Parry Kenyon, Taiwo Olatunde, Guido Mueller, Peter Wass, Fan Ren, Stephen J. Pearton et John W. Conklin. « High volume UV LED performance testing ». Review of Scientific Instruments 93, n^o 11 (1 novembre 2022) : 114503. http://dx.doi.org/10.1063/5.0107372.

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There is increasing interest in deep UV Light-Emitting Diodes (LEDs) for applications in water purification, virus inactivation, sterilization, bioagent detection, and UV curing, as well as charge management control in the Laser Interferometer Space Antenna (LISA), which will be the first gravitational wave detector in space. To fully understand the current state of commercial UV LEDs and assess their performance for use on LISA, large numbers of UV LEDs need to be tested across a range of temperatures while operating in air or in a vacuum. We describe a new hardware system designed to accommodate a high volume of UV LED performance tests and present the performance testing results from over 200 UV LEDs with wavelengths in the 250 nm range.

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Lee, Sangmin, Jaebum Son, Dong Geon Kim, Joonbum Choi et Yong Kyun Kim. « Characterization of plastic scintillator fabricated by UV LED curing machine ». Nuclear Instruments and Methods in Physics Research Section A : Accelerators, Spectrometers, Detectors and Associated Equipment 929 (juin 2019) : 23–28. http://dx.doi.org/10.1016/j.nima.2019.03.048.

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Wu, Kuo-Tsai, Sheng-Jye Hwang et Huei-Huang Lee. « Study of Exposure Uniformity of UV LED Exposure System for Wafer-Level Camera Lenses ». Applied Sciences 9, n^o 19 (1 octobre 2019) : 4110. http://dx.doi.org/10.3390/app9194110.

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Wafer-level camera lenses are a very promising process for camera lens fabrication. However, there exist some problems with this technology, such as uneven exposure due to curing non-uniformities. In this study, an optical simulation was implemented to simulate the UV light-emitting diodes (LEDs) curing process. We design the LED arrangement, and then find the corresponding LED and adjust the LED power to improve exposure uniformity. The simulation results are very close to the experimental data, and the uniformity is also within the standard range.

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Xie, Ruidong, et Dichen Li. « Research on the curing performance of UV-LED light based stereolithography ». Optics & ; Laser Technology 44, n^o 4 (juin 2012) : 1163–71. http://dx.doi.org/10.1016/j.optlastec.2011.09.019.

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Thèses sur le sujet "UV-LED curing"

Torfgård, Olof. « Short wavelength UV–LED photoinitiated radical polymerization of acrylate–based coating systems—A comparison with conventional UV curing ». Thesis, Uppsala universitet, Strukturkemi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-442431.

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The present work was performed at Sherwin–Williams Sweden group AB with the objective of comparing short-wavelength light emitting diodes (UVB/UVC) with the conventional mercury arc lamp as a curing method of acrylate-based, UV-paint undergoing free-radical polymerization when exposed to UV-radiation. Due to environmental and health risks, mercury-doped radiation sources will be phased out in the near future, according to the United Nations Minamata convention, hence new alternatives are needed. Light-emitting diodes differ from the mercury arc lamp as they provide semi-discrete output intensity lines within the UV spectrum instead of a broad output distribution with several main intensity lines. The power output is also considerably lower compared to the conventional method which limits the irradiance and dose that are key parameters in activating and propagating free-radical polymerization of UV-paint. Seven different light-emitting diodes between 260–320 nm was examinedand compared to the conventional mercury arc lamp. Cured coatings were evaluated by measuring the relative extent of acrylate conversion with ATR-FTIR and micro-hardness indentation test. Both methods correlate to the relative cross-linking density and qualitatively describe the curing process for each radiant source at a specific irradiance and dose. Three different paint formulations with widely different properties were used in the experiments. All three paints were able to cure with one or several light emitting diodes at comparable doses and 10 to 20 times lower irradiance to the conventional mercury arc lamp, resulting in similar acrylate conversion and hardness.

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STRONGONE, VALENTINA. « Preparation and characterization of UV-LED curable composite systems based on carbon fillers ». Doctoral thesis, Politecnico di Torino, 2021. http://hdl.handle.net/11583/2875751.

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HUANG, PO-YANG, et 黃博揚. « Design and Analysis of Small Pattern UV LED Array Curing System for the Application of the Nail ». Thesis, 2017. http://ndltd.ncl.edu.tw/handle/64440343082101952691.

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碩士
國立暨南國際大學
光電科技碩士學位學程在職專班
105
The study mainly discusses are the application of high power UV LED and design of driver circuit to achieve a stable electric power supply and stabilize its output power to produce a UV-A light curing equipment for the applications of the nail to replace existing expensive traditional mercury UV curing equipment. The product of the discussed in the paper is a high-power UV LED module, arranged in a small pattern array, the circuits design also need to consider the impact of its array and the problem most need into consideration is cooling. Changes in the study affected by temperature its electric power and photo power at different temperatures for the curing system, in order to determine the automatic constant electric power control drive circuit of high power LED's with a clear effect. The study also measured the power of high-power UV LED curing system which produced by the design to understand the power distribution scenarios.

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Livres sur le sujet "UV-LED curing"

UV Curing Technology : Traditional UV Curing & UV LED Curing. CreateSpace Independent Publishing Platform, 2012.

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Chapitres de livres sur le sujet "UV-LED curing"

Exner, Dirk. « UV LED Ink Curing : UV LED Technology and Solutions for Integration into Industrial Inkjet Printing ». Dans Handbook of Industrial Inkjet Printing, 529–42. Weinheim, Germany : Wiley-VCH Verlag GmbH & Co. KGaA, 2017. http://dx.doi.org/10.1002/9783527687169.ch30.

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Lu, Qi, Xianfu Wei, Ting Zhu, Beiqing Huang et Hui Wang. « Cyan Cationic-Initiated Photocurable Material with High Curing Rate for UV-LED Curing ». Dans Lecture Notes in Electrical Engineering, 381–87. Singapore : Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-1673-1_56.

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Huang, Beiqing, Bin Wang, Le Ma, Hui Wang et Xianfu Wei. « Research on Curing Performance and Printability of Magenta UV-LED Gravure Ink ». Dans Lecture Notes in Electrical Engineering, 630–41. Singapore : Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-1864-5_86.

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Actes de conférences sur le sujet "UV-LED curing"

Hubert, Manfred, Chris F. Dimas, Paul Orava et Joyce Koo. « High-power UV LED array for curing photoadhesives ». Dans Applications of Photonic Technology, sous la direction de Roger A. Lessard et George A. Lampropoulos. SPIE, 2003. http://dx.doi.org/10.1117/12.543342.

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Zhang, Wenyu, Shiyong Luo, Wencai Xu et Xinlin Zhang. « The Progress of the LED-UV Curing Technology ». Dans 2015 International Conference on Advanced Material Engineering. WORLD SCIENTIFIC, 2015. http://dx.doi.org/10.1142/9789814696029_0031.

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Chen, Yi-Tai, Tai-Ping Sun, Po-Yan Huang et Hsiu-Li Shieh. « Design a novel small pattern UV LED array curing system ». Dans 2017 International Conference on Applied System Innovation (ICASI). IEEE, 2017. http://dx.doi.org/10.1109/icasi.2017.7988298.

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Jašúrek, Bohumil, Jan Vališ et Tomáš Syrový. « Development of new UV LED curable inkjet varnishes ». Dans 11th International Symposium on Graphic Engineering and Design. University of Novi Sad, Faculty of technical sciences, Department of graphic engineering and design, 2022. http://dx.doi.org/10.24867/grid-2022-p9.

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We have prepared three UV curable varnishes for inkjet printing that can be cured by UV LEDs (365–395 nm). The advantages of UV LEDs compared to medium pressure mercury lamps (conventional source of UV radiation) are lower energy consumption, possibility of immediate switching on/off, no IR radiation, no ozone generation and are mercury free. UV LEDs cannot effectively (or at all) cure formulations designed for mercury lamp curing. Developed UV varnishes enable the creation of special varnish effects on printed substrates (including 3D) thanks to partial curing with UV LEDs. Evaluated properties of prepared varnishes were viscosity, surface tension, reactivity, long-term stability and printability. The printing properties of prepared UV curable varnishes were tested on commercially available inkjet printing machine (Spotmatic 36, KOMFI). The cured varnish layers (thickness 20 and 40 μm) were evaluated in terms of mechanical properties (adhesion, elasticity) and optical properties (yellowness). Namely, the study of mechanical properties included the evaluation of adhesion by Tape test, quality of the varnish layer with respect to cutting and grooving, and elasticity/adhesion of grooved varnish layers after folding (180 °). Results showed that prepared UV LED curable varnishes have very good elasticity and adhesion to various printing substrates and enables further trouble-free mechanical processing of varnished products, such as cutting, grooving or bending.

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Li, Xiaoli, Shiyong Luo, Wencai Xu, Kelin Mao, Jiangwei Huang, Yong Xiao, Di He et Ruiqiang Meng. « Analysis of UV-LED curing technology and existing problems of varnish for printed matter ». Dans 2016 International Conference on Innovative Material Science and Technology (IMST 2016). Paris, France : Atlantis Press, 2016. http://dx.doi.org/10.2991/imst-16.2016.43.

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Wang, Peipei, Zhiliang Jin et Daxi Xiong. « Optimal Optical Design of UV-LED Curing System with High Illumination and Luminance Uniformity ». Dans 2018 15th China International Forum on Solid State Lighting : International Forum on Wide Bandgap Semiconductors China (SSLChina : IFWS). IEEE, 2018. http://dx.doi.org/10.1109/ifws.2018.8587349.

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Xu, Qianwen, Shi-Wei Ricky Lee et Jeffery Chi Chuen Lo. « Coaxial Nozzle-assisted 3D Printing with in-situ UV LED Curing for Microfluidic Connectors ». Dans 2019 20th International Conference on Electronic Packaging Technology(ICEPT). IEEE, 2019. http://dx.doi.org/10.1109/icept47577.2019.245271.

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Rui-hua, Zhou, Tian Xiu-yun, Wang Shu-qing et Li Shen-de. « Optimal simulation and design of fanlike UV LED array on cylindrical surface for revolving curing ». Dans 2011 International Conference on Electrical and Control Engineering (ICECE). IEEE, 2011. http://dx.doi.org/10.1109/iceceng.2011.6057241.

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Cheng, Hao, Zi Zhou Yang, Yang Peng, Yun Mou et Ming Xiang Chen. « Low Temperature Fabrication of Three-Dimensional Ceramic Substrate by Using Inorganic Alkali Activated Aluminosilicate Cement Paste for UV-LED Packaging ». Dans ASME 2018 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/ipack2018-8226.

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In this work, a low temperature method is proposed for the economical fabrication of three-dimensional (3D) ceramic substrate for Ultraviolet Light-Emitting Diodes (UV-LED) packaging. The 3D ceramic substrate using the inorganic alkali activated aluminosilicate cement paste (IAAACP) is molded by sacrificing the patterned wax mold. By controlling the viscosity, milling time, and curing temperature the of the IAAACP, the high strength 3D ceramic substrate is achieved, the corresponding shear strength reaches to 12.5MPa. After thermal shock and heat resistant test, the shear strength changed slightly, indicating the 3D ceramic substrate has excellent thermal reliability. These experimental results indicate that the prepared 3D ceramic substrate has a potential application for UV-LED packaging.

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Lee, Shi-Wei Ricky, Qianwen Xu et Jeffery Chi Chuen Lo. « Additive Manufacturing of Micro-scale Tunnels on a Silicon Substrate with in-situ UV LED Curing for MEMS Applications ». Dans 2018 7th Electronic System-Integration Technology Conference (ESTC). IEEE, 2018. http://dx.doi.org/10.1109/estc.2018.8546382.

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Rapports d'organisations sur le sujet "UV-LED curing"

Karlicek, Robert, F. ,. Jr, et Robert Sargent. High Power UV LED Industrial Curing Systems. Office of Scientific and Technical Information (OSTI), mai 2012. http://dx.doi.org/10.2172/1039941.

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