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Journal articles on the topic 'Radiation curing'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 August 2024

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1

Americus. "Coatings update: radiation curing." Pigment & Resin Technology 14, no. 5 (May 1985): 12–17. http://dx.doi.org/10.1108/eb042133.

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2

Decker, Christian. "UV‐radiation curing chemistry." Pigment & Resin Technology 30, no. 5 (October 2001): 278–86. http://dx.doi.org/10.1108/03699420110404593.

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3

Peppas, N. A. "Radiation curing of polymers." Journal of Controlled Release 7, no. 3 (September 1988): 289. http://dx.doi.org/10.1016/0168-3659(88)90067-3.

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4

Dickson, Lawrence W., and Ajit Singh. "Radiation curing of epoxies." International Journal of Radiation Applications and Instrumentation. Part C. Radiation Physics and Chemistry 31, no. 4-6 (January 1988): 587–93. http://dx.doi.org/10.1016/1359-0197(88)90231-7.

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5

Läuppi, Urs V. "Radiation curing - an overview." International Journal of Radiation Applications and Instrumentation. Part C. Radiation Physics and Chemistry 35, no. 1-3 (January 1990): 30–35. http://dx.doi.org/10.1016/1359-0197(90)90052-j.

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6

Tabata, Yoneho. "Radiation curing in Japan." International Journal of Radiation Applications and Instrumentation. Part C. Radiation Physics and Chemistry 35, no. 1-3 (January 1990): 36–40. http://dx.doi.org/10.1016/1359-0197(90)90053-k.

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7

Cockburn, Eleanor, and Richard Holman. "Radiation curing: tomorrow's technology today." Journal of the Society of Dyers and Colourists 109, no. 5-6 (October 22, 2008): 179–82. http://dx.doi.org/10.1111/j.1478-4408.1993.tb01551.x.

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8

Czvikovszky, T. "Radiation curing progress in Hungary." International Journal of Radiation Applications and Instrumentation. Part C. Radiation Physics and Chemistry 35, no. 1-3 (January 1990): 41–45. http://dx.doi.org/10.1016/1359-0197(90)90054-l.

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9

Scott, Bobby R., and Jennifer Di Palma. "Sparsely Ionizing Diagnostic and Natural Background Radiations are Likely Preventing Cancer and other Genomic-Instability-Associated Diseases." Dose-Response 5, no. 3 (July 1, 2007): dose—response.0. http://dx.doi.org/10.2203/dose-response.06-002.scott.

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Routine diagnostic X-rays (e.g., chest X-rays, mammograms, computed tomography scans) and routine diagnostic nuclear medicine procedures using sparsely ionizing radiation forms (e.g., beta and gamma radiations) stimulate the removal of precancerous neoplastically transformed and other genomically unstable cells from the body (medical radiation hormesis). The indicated radiation hormesis arises because radiation doses above an individual-specific stochastic threshold activate a system of cooperative protective processes that include high-fidelity DNA repair/apoptosis (presumed p53 related), an auxiliary apoptosis process (PAM process) that is presumed p53-independent, and stimulated immunity. These forms of induced protection are called adapted protection because they are associated with the radiation adaptive response. Diagnostic X-ray sources, other sources of sparsely ionizing radiation used in nuclear medicine diagnostic procedures, as well as radioisotope-labeled immunoglobulins could be used in conjunction with apoptosis-sensitizing agents (e.g., the natural phenolic compound resveratrol) in curing existing cancer via low-dose fractionated or low-dose, low-dose-rate therapy (therapeutic radiation hormesis). Evidence is provided to support the existence of both therapeutic (curing existing cancer) and medical (cancer prevention) radiation hormesis. Evidence is also provided demonstrating that exposure to environmental sparsely ionizing radiations, such as gamma rays, protect from cancer occurrence and the occurrence of other diseases via inducing adapted protection (environmental radiation hormesis).
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10

Harris, Sid. "Radiation curing – the only way ahead?" Focus on Powder Coatings 2011, no. 7 (July 2011): 1–2. http://dx.doi.org/10.1016/s1364-5439(11)70139-3.

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11

Walters, Chris. "Shedding new light on radiation curing." Metal Finishing 104, no. 3 (March 2006): 33–36. http://dx.doi.org/10.1016/s0026-0576(06)80052-8.

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12

Spadaro, G., S. Alessi, C. Dispenza, M. A. Sabatino, G. Pitarresi, D. Tumino, and G. Przbytniak. "Radiation curing of carbon fibre composites." Radiation Physics and Chemistry 94 (January 2014): 14–17. http://dx.doi.org/10.1016/j.radphyschem.2013.05.052.

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13

Rose, K., D. Vangeneugden, S. Paulussen, and U. Posset. "Radiation curing of hybrid polymer coatings." Surface Coatings International Part B: Coatings Transactions 89, no. 1 (March 2006): 41–48. http://dx.doi.org/10.1007/bf02699613.

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14

Garnett, JL. "Radiation curing-twenty five years on." Radiation Physics and Chemistry 46, no. 4-6 (September 1995): 925–30. http://dx.doi.org/10.1016/0969-806x(95)00294-8.

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15

Allen, K. W., E. S. Cockburn, R. S. Davidson, K. S. Tranter, and H. S. Zhang. "Some new developments in radiation curing." Pure and Applied Chemistry 64, no. 9 (January 1, 1992): 1225–30. http://dx.doi.org/10.1351/pac199264091225.

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16

Johansson, Mats, Thierry Glauser, Gianluca Rospo, and Anders Hult. "Radiation curing of hyperbranched polyester resins." Journal of Applied Polymer Science 75, no. 5 (January 31, 2000): 612–18. http://dx.doi.org/10.1002/(sici)1097-4628(20000131)75:5<612::aid-app3>3.0.co;2-1.

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17

Gkertzos, Petros, Athanasios Kotzakolios, Ioannis Katsidimas, and Vassilis Kostopoulos. "Parametric Numerical Study and Multi-Objective Optimization of Composite Curing through Infrared Radiation." Applied Mechanics 5, no. 1 (March 20, 2024): 192–211. http://dx.doi.org/10.3390/applmech5010013.

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Composite curing through infrared radiation (IR) has become a popular autoclave alternative due to lower energy costs and short curing cycles. As such, understanding and measuring the effect of all parameters involved in the process can aid in selecting the proper constituents as well as curing cycles to produce parts with a high degree of cure and low curing time. In this work, a numerical model that takes inputs such as part geometry, material properties, curing-related properties and applied curing cycle is created. Its outputs include the degree of cure, maximum curing temperature and total curing time. A genetic algorithm and a design of experiments (DOE) sequence cover the range of each input variable and multiple designs are evaluated. Correlations are examined and factor analysis on each output is performed, indicating that the most important inputs are activation energy, specimen precuring, applied curing temperature and curing duration, while all the others can be considered constant. Finally, response surfaces are created in order to effectively map and provide estimations of the design space, resulting in a curing cycle optimizer given certain restrictions over the input parameters.
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18

Idesaki, A., M. Sugimoto, S. Tanaka, M. Narisawa, K. Okamura, and M. Itoh. "Synthesis of a minute SiC product from polyvinylsilane with radiation curing Part I Radiation curing of polyvinylsilane." Journal of Materials Science 39, no. 18 (September 2004): 5689–94. http://dx.doi.org/10.1023/b:jmsc.0000040077.94183.ac.

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19

Bhowmick, Anil K., and V. Vijayabaskar. "Electron Beam Curing of Elastomers." Rubber Chemistry and Technology 79, no. 3 (July 1, 2006): 402–28. http://dx.doi.org/10.5254/1.3547944.

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Abstract Modification of thermoplastic and rubbery materials by electron beam (EB) radiation is a potential method for development of new polymers and composites. Irradiation of polymeric materials results in grafting and subsequently formation of a three dimensional network through the union of generated macro radicals. In the Green drive, i.e. to make the world pollution free, this technology takes an important position. Curing of a number of both non-polar and polar elastomers using an electron beam was carried out in our laboratory. The effects of irradiation dose in presence and absence of radiation sensitizer on the crosslinking and structure of ethylene propylene rubber, ethylene octene copolymer, nitrile, acrylic and fluorocarbon rubbers were investigated. An analysis of crosslink to scission ratio on the basis of Charlesby-Pinner Equation was done. Mechanical and dynamic mechanical properties showed that these improved with radiation dose and sensitizer level up to certain values, beyond which the properties deteriorated due to chain scission reactions. The properties of the vulcanizates were correlated with the structure. EB cured samples were compared with the samples having conventional crosslinks. Some applications of the electron beam curing are highlighted.
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20

Zhang, Wei Li, Jian Jun Chen, Man Lin Tan, Bo Li, Li Qiang Ye, Dong Ju Fu, Qing Ma, Xiao Wei Wang, and Dong Shuang Li. "UV-Radiation Curing Process of Cationic Epoxy Adhesive Materials." Advanced Materials Research 983 (June 2014): 222–25. http://dx.doi.org/10.4028/www.scientific.net/amr.983.222.

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The effect of photoinitiator content and species for adhesive liquid-solid conversion rate was studied. The infrared spectras of the alicyclic epoxy resin adhesives before and after the UV light curing were detected by FTIR. Thus light curing process for the alicyclic epoxy adhesive material was explored. The results showed that the UV light curing speed of Omnicat 550 was slower than that of Omnicat 650. Furthermore, the liquid-solid conversion rate was the maximum when the photoinitiator was added up to 3% with the same agent and coating thickness.
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21

Sanjay, CJ, Karthikeya Patil, MahimaV Guledgud, N. Harshitha, A. Shiny, and Namrata Suresh. "Efficacy of vitamin D gel in curbing and curing radiation-induced oral mucositis." Journal of Indian Academy of Oral Medicine and Radiology 35, no. 4 (2023): 488. http://dx.doi.org/10.4103/jiaomr.jiaomr_21_23.

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22

Decker, C., T. Nguyen Thi Viet, D. Decker, and E. Weber-Koehl. "UV-radiation curing of acrylate/epoxide systems." Polymer 42, no. 13 (June 2001): 5531–41. http://dx.doi.org/10.1016/s0032-3861(01)00065-9.

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23

Xu, Jianwen, and Wenfang Shi. "Progress in radiation curing marketing and technology." Journal of Coatings Technology 74, no. 5 (May 2002): 67–72. http://dx.doi.org/10.1007/bf02697985.

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24

Decker, C., and I. Lorinczova. "UV-Radiation curing of waterborne acrylate coatings." Journal of Coatings Technology and Research 1, no. 4 (October 2004): 247–56. http://dx.doi.org/10.1007/s11998-004-0027-x.

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25

de Micheli, P. "Pigment wetting characteristics of radiation curing systems." Surface Coatings International 83, no. 9 (September 2000): 455–59. http://dx.doi.org/10.1007/bf02692757.

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26

Boey, F. Y. C., and W. L. Lee. "Microwave radiation curing of a thermosetting composite." Journal of Materials Science Letters 9, no. 10 (October 1990): 1172–73. http://dx.doi.org/10.1007/bf00721880.

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27

Gershoni, Gilad, Hanna Dodiuk, Reshef Tenne, and Samuel Kenig. "Cationic Polymerized Epoxy and Radiation Cured Acrylate Blend Nanocomposites Based on WS2 Nanoparticles—Part A: Curing Processes and Kinetics." Journal of Composites Science 7, no. 1 (January 16, 2023): 41. http://dx.doi.org/10.3390/jcs7010041.

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Cationic photo-initiated and polymerized epoxies are characterized by good adhesion, high modulus, zero volatiles, low shrinkage and living polymerization characteristics. Radiation—cured acrylate resins are characterized by rapid initial curing with increased initial strength. The combination of radiation-cured acrylates and epoxies may present advantageous attributes. Thus, the system investigated is a hybrid epoxy/methyl acrylate and three different initiators for cationic polymerization of epoxies, the radical reaction of acrylates and the thermal initiator. When incorporating additives like opaque WS2 nanoparticles (NPs), absorption of the photo radiation takes place, which may lead to low photo activity. Curing kinetics measurements revealed that the absorbing/masking effect of WS2 was insignificant, and surprisingly, the level of curing was enhanced when the WS2 NPs were incorporated. FTIR results demonstrated that covalent bonds were formed between the inorganic fullerenes (IF-WS2) and the crosslinked matrix. Viscosity measurements showed a surprising reduction of five to ten times in the low-shear viscosity upon NPs incorporation compared to neat resins. It was concluded that the decrease of viscosity by the inorganic NPs, in addition to the enhanced level of conversion, has profound advantages for structural adhesives and 3D printing resins. To the best of our knowledge, this investigation is the first to report on a radiation-induced curing system containing opaque WS2 NPs that leads to an enhanced degree of curing and reduced shear viscosity.
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28

Ranoux, Guillaume, Gabriela Tataru, and Xavier Coqueret. "Cationic Curing of Epoxy–Aromatic Matrices for Advanced Composites: The Assets of Radiation Processing." Applied Sciences 12, no. 5 (February 24, 2022): 2355. http://dx.doi.org/10.3390/app12052355.

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Cross-linking polymerization of multifunctional aromatic monomers initiated by exposure to high energy radiation continues to be explored as a promising alternative to thermal curing for the production of high-performance composite materials. High-energy radiation processing offers several advantages over thermosetting technology by allowing for fast and out-of-autoclave curing operations and for its adaptability in the manufacturing of large and complex structures at reduced energy costs. The present article covers the basic aspects of radiation curing by cationic polymerization of epoxy resins, providing a status report on recent investigations conducted in our group to improve the properties of epoxy matrices and gain better control over the process for producing composites. A selection of results based on blends prepared with different composition of epoxy aromatics, transfer agents, thermoplastic toughening agents and onium salt initiators exemplifies the importance of the composition on polymerization kinetics and on the properties of resulting materials. The superiority of radiation-triggered polymerization-induced phase separation of thermoplastic additives is emphasized by the obtained morphology of toughened materials. The low initial temperature and fast curing of the reactive blends limits the expansion of phase-separated thermoplastic domains, resulting in an enhancement of the toughness.
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29

Nakayama, Hiroshi, Isao Kaetsu, Kumao Uchida, Manabu Oishibashi, and Yoshio Matsubara. "Intelligent biomembranes for nicotine releases by radiation curing." Radiation Physics and Chemistry 67, no. 3-4 (June 2003): 367–70. http://dx.doi.org/10.1016/s0969-806x(03)00068-9.

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30

Berejka, Anthony J., and Cliff Eberle. "Electron beam curing of composites in North America." Radiation Physics and Chemistry 63, no. 3-6 (March 2002): 551–56. http://dx.doi.org/10.1016/s0969-806x(01)00553-9.

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31

Ashraf, Munir, Farida Irshad, Jawairia Umar, Assad Farooq, and Mohammad Azeem Ashraf. "Development of a novel curing system for low temperature curing of resins with the aid of nanotechnology and ultraviolet radiation." RSC Advances 6, no. 84 (2016): 81069–75. http://dx.doi.org/10.1039/c6ra06591k.

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In this research work, low temperature curing of crease recovery finishes was done with the help of ZnO nanoparticles as catalyst in the presence of UV radiation. The results were compared with the conventional catalyst and thermal curing system.
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32

Swanson, P. "Case Histories of Radiation Curing for Electronic Packaging." Soldering & Surface Mount Technology 8, no. 3 (December 1996): 19–24. http://dx.doi.org/10.1108/09540919610777717.

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33

Preston, Christopher M. L., David J. T. Hill, Peter J. Pomery, Andrew K. Whittaker, and Brian J. Jensenk. "Thermal and Radiation Curing of Phenylethynyl Terminated Macromers." High Performance Polymers 11, no. 4 (December 1999): 453–65. http://dx.doi.org/10.1088/0954-0083/11/4/309.

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34

TAGAWA, Seiichi. "Elementary Processes and Crosslinking Reactions in Radiation Curing." Kobunshi 45, no. 11 (1996): 782–85. http://dx.doi.org/10.1295/kobunshi.45.782.

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35

FUSHIMI, Takao. "Application of Radiation Curing Viewed from Patent Documents." Kobunshi 45, no. 11 (1996): 794–98. http://dx.doi.org/10.1295/kobunshi.45.794.

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36

Masson, F., C. Decker, T. Jaworek, and R. Schwalm. "UV-radiation curing of waterbased urethane–acrylate coatings." Progress in Organic Coatings 39, no. 2-4 (November 2000): 115–26. http://dx.doi.org/10.1016/s0300-9440(00)00128-4.

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37

Decker, Christian, Laurent Keller, Khalid Zahouily, and Said Benfarhi. "Synthesis of nanocomposite polymers by UV-radiation curing." Polymer 46, no. 17 (August 2005): 6640–48. http://dx.doi.org/10.1016/j.polymer.2005.05.018.

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38

Kaetsu, Isao, Hiroshi Nakayama, Kumao Uchida, and Kouichi Sutani. "Radiation curing of intelligent coating on biofunctional membranes." Radiation Physics and Chemistry 60, no. 4-5 (January 2001): 513–20. http://dx.doi.org/10.1016/s0969-806x(00)00409-6.

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39

Salleh, N. G., H. J. Gläsel, and R. Mehnert. "Development of hard materials by radiation curing technology." Radiation Physics and Chemistry 63, no. 3-6 (March 2002): 475–79. http://dx.doi.org/10.1016/s0969-806x(01)00542-4.

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40

Decker, C., F. Morel, and D. Decker. "UV-radiation curing of vinyl ether-based coatings." Surface Coatings International 83, no. 4 (April 2000): 173–80. http://dx.doi.org/10.1007/bf02692689.

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41

Nablo, Sam V. "Recent developments in radiation curing in the USA." International Journal of Radiation Applications and Instrumentation. Part C. Radiation Physics and Chemistry 35, no. 1-3 (January 1990): 46–51. http://dx.doi.org/10.1016/1359-0197(90)90055-m.

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42

He, Jian Yun, Yuan Yu, Ruo Yun Wang, Le Chang, Qiang Wang, Li Cheng He, and Wei Min Yang. "Research on the Micro-Injection of UV Curing." Applied Mechanics and Materials 602-605 (August 2014): 455–57. http://dx.doi.org/10.4028/www.scientific.net/amm.602-605.455.

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Based on the traditional injection molding technology, micro-injection molding of UV curing experiments has been conducted. The injection molding and repeatability of the parts which have micro-structure were mainly studied. The experimental results show that: the mold-ability and repeatability of micro-structure are significantly infected by UV radiation energy and forming temperature. In order to achieve a good repeatability, it is necessary to use a sufficiently high intensity ultraviolet radiation and appropriate molding temperature during micro-injection of UV curing.
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43

Zhu, Peng, and Xin Gang Zhou. "Effect of Curing Temperature on the Properties of Concrete at Early Age." Applied Mechanics and Materials 351-352 (August 2013): 1687–93. http://dx.doi.org/10.4028/www.scientific.net/amm.351-352.1687.

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Under the consideration of radiation, convection, and evaporative cooling, simulating the effect of different curing temperatures (5°C,10°C,15°C,20°C,25°C,30°C) on the performance of concrete at early age. The results showed that curing temperature affected the early age performance of concrete greatly. Higher curing temperature improves the peak temperature of concrete members, and contributes to the development of the strength of concrete at early age, but elevated curing temperature will lead to higher cracking potential classification of concrete at early age.
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44

Aschoff, Jasmine, Stephan Partschefeld, Jens Schneider, and Andrea Osburg. "Effect of Microwaves on the Rapid Curing of Metakaolin- and Aluminum Orthophosphate-Based Geopolymers." Materials 17, no. 2 (January 18, 2024): 463. http://dx.doi.org/10.3390/ma17020463.

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This paper deals with the influence of microwaves on the hardening and curing of geopolymer binders synthesized from metakaolin or aluminum orthophosphate with sodium silicate solution as the activator. Pure geopolymer pastes as well as geopolymer mortars were considered. The variable parameters were the modulus of the sodium silicate solutions (molar ratio of SiO2 to Na2O: 1.5, 2.0 and 2.5) and the Si/Al ratio (3/1 and 2/1). Selected samples were cured in a microwave oven until hardening, so the curing time depended on the mixture. For comparison some samples were cured at ambient temperature. To investigate the influence of microwave radiation on the reaction kinetics, isothermal heat flow calorimetry, ultrasonic velocity measurements and rheological investigations into the variation of curing temperature were used. In addition, the mechanical properties of the cured samples were characterized. The results show that microwave curing only takes a few minutes, so it is the most time-saving method. Key factors influencing the geopolymer reaction under microwave radiation are the raw materials as well as the Si/Al ratio. Metakaolin-based geopolymer binders are more stable than those based on aluminum orthophosphate, especially regarding their salt efflorescence. Microwave radiation is an efficient method to accelerate the geopolymer reaction.
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45

Liu, Weihua, Mouhua Wang, Zhe Xing, and Guozhong Wu. "Radiation oxidation and subsequent thermal curing of polyacrylonitrile fiber." Radiation Physics and Chemistry 94 (January 2014): 9–13. http://dx.doi.org/10.1016/j.radphyschem.2013.06.015.

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46

Chern, B. C., T. J. Moon, and J. R. Howell. "Thermal Analysis of In-Situ Curing for Thermoset, Hoop-Wound Structures Using Infrared Heating: Part I—Predictions Assuming Independent Scattering." Journal of Heat Transfer 117, no. 3 (August 1, 1995): 674–80. http://dx.doi.org/10.1115/1.2822629.

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A curing process for unidirectional thermoset prepreg wound composite structures using infrared (IR) in-situ heating is investigated. In this method, the infrared energy is from all incident angles onto the composite structure to initiate the curing during processing. Due to the parallel geometry of filaments in wound composite structures, the radiative scattering coefficient and phase function within the structure depend strongly on both the wavelength and the angle of incidence of the IR incident radiation onto the fibers. A two-dimensional thermochemical and radiative heat transfer model for in-situ curing of thermoset, hoop-wound structures using IR heating is presented. The thermal transport properties that depend on the process state are also incorporated in the analysis. A nongray, anisotropic absorbing, emitting, and scattering unidirectional fibrous medium within a matrix of nonunity refractive index is considered. The temperatures and degrees of cure within the composite during processing are demonstrated numerically as a function of the configuration of IR heat source, nondimensional power input, mandrel winding speed, and size of wound composite. Comparison between the numerical result and experimental data is presented.
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47

Xiancong, Huang, Shi Meiwu, Zhou Guotai, Zhou Hong, Hao Xiaopeng, and Zhou Chunlan. "Investigation on the electron-beam curing of vinylester resin." Radiation Physics and Chemistry 77, no. 5 (May 2008): 643–55. http://dx.doi.org/10.1016/j.radphyschem.2007.11.006.

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48

Mitra, Kalyan Yoti, Dana Weise, Melinda Hartwig, and Reinhard R. Baumann. "Infra-red curing methodology for Roll-to-Roll (R2R) manufacturing of conductive electrodes through inkjet technology applicable for devices in the field of flexible electronics." MRS Proceedings 1791 (2015): 1–6. http://dx.doi.org/10.1557/opl.2015.533.

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ABSTRACTThe Inkjet printing technology is a direct patterning technique to deposit functional materials with high precision and accuracy. This deposition technology is often used to manufacture conductive electrodes for different active and passive electronic devices on flexible foils. It is an up-scalable process in terms of printing devices from low (via. Sheet-to-Sheet, S2S platform) to high (via. Roll-to-Roll platform) quantities. For manufacturing of these conductive electrodes and hence electronic devices through the R2R platform, a suitable post-treatment/curing methodology is very much desired. In this work, the focus is concentrated on the curing methodology using the Infra-red radiation for both the inkjet-printed conductive electrodes and insulator layer, for completing a “proof of concept” Metal-Insulator-Metal (MIM) electronic device structure over the R2R platform. A conductive silver nano-particle and a polymeric dielectric ink are used to print the top and bottom conductive electrodes, with a middle insulator layer for the MIM structure respectively. It is observed that not only the printed silver electrode layers (both top and bottom) can be cured with the help of the Infra-red radiation, but also the insulator layer. Additionally, the layers constituting the MIM device structure is cured with the conventional curing methodology which in this case is thermal curing using a convection oven. This curing procedure for the printed functional layers is generally performed for the S2S manufacturing process. The conductive electrodes are then electrically characterized by measuring the sheet resistance (on the foil and dielectric layer) as a function of the un-conventional Infra-red radiation and conventional oven curing methodologies. The cured layers for both the conductive electrodes and insulator layers are morphologically analyzed for the layer thickness and homogeneity. The electrical performance of the cured insulator in form of the obtained capacitance from the MIM passive device is compared for the two mentioned curing methodologies.
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49

Gershoni, Gilad, Hanna Dodiuk, Reshef Tenne, and Samuel Kenig. "Cationically Polymerized Epoxy and Radiation-Cured Acrylate Blend Nanocomposites Based on WS2 Nanoparticles Part B: Mechanical and Physical Properties." Journal of Composites Science 7, no. 1 (January 16, 2023): 42. http://dx.doi.org/10.3390/jcs7010042.

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The radiation curing paradigm of opaque WS2 nanoparticle (NP)-based epoxy/acrylate nanocomposites was studied and found to exhibit both a reduction in viscosity and an enhanced degree of curing when incorporating WS2 NPs. The objective of this study was to investigate the mechanical, thermal, and physical properties of a radiation-induced and cured epoxy/acrylate blend containing 0.3 to 1.0 wt.% WS2 NPs. Experimental results indicate that the tensile toughness increased by 22% upon optimizing the NP content compared to that of WS2-free formulations. Tensile fractured surfaces with different WS2 NP contents were analyzed with a scanning electron microscope and an atomic force microscope and showed distinctive morphology depending on the WS2 NP content, supporting the results of the tensile test. The energy required to break shear adhesion specimens demonstrated an increase of up to 60% compared to that of the neat resin. The glass transition temperature determined by dynamic mechanical analysis presented similar or higher values upon WS2 NP incorporation. Furthermore, up to 80% improvement in impact strength was demonstrated when WS2 NPs were dispersed in the epoxy/acrylate blend. It was concluded that the surface chemistry and dispersion level of the WS2 NPs are the major variables affecting the macro properties of cationically radiation-cured resins and their adhesion properties. This study is the first to demonstrate the possibility for radiation-induced curing of opaque NPs based on WS2 that serve as both a reinforcement nanoparticle at low concentrations and an enhancement of the degree of curing.
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Garishin, O. K., A. L. Svistkov, A. Yu Belyaev, and V. G. Gilev. "On the Possibility of Using Epoxy Prepregs for Carcass-Inflatable Nanosatellite Antennas." Materials Science Forum 938 (October 2018): 156–63. http://dx.doi.org/10.4028/www.scientific.net/msf.938.156.

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Abstract:
The possibility of using epoxy prepregs (fabric impregnated with epoxy resin) for carcass-inflatable antennas on space nanosatellites was investigated. It is shown that the optimal method of obtaining such devices is the use of reactive mixtures of hot cure, when the chemical reaction of curing of antenna deployed in space occurs under the action of solar radiation. In this case, the antenna is put into orbit in the nanosatellite in a compact form and no additional mechanisms are needed to give it the final working shape. The rheological properties of the mixture of epoxy resin YD-128 with hardener TEAT-1, suitable for making hot-curing prepregs and its use in near-earth orbit, are investigated. The dependence of rheological properties on temperature, hardener concentration and curing time is established. With the help of computer simulation, the temperature is calculated, to which the antenna carcass can be heated in near-earth orbit under the influence of thermal radiation from the Sun and the Earth taking into account its orientation in relation to the sources of heat. It is established that the process of hot curing of the antenna is possible due to solar and terrestrial radiation only when the frame is covered with a thin metallized layer that is close in characteristics to the layer of aluminum foil.
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