Title: The Development Of A Uv Curable Material For High Rate Aerospace Manufacturing And Repair

Authors: Jessica L. Wallick, Marcos Pantoja

DOI: 10.33599/nasampe/s.24.0042

Abstract: The constant pursuit of aerospace original equipment manufacturers (OEMs) for new materials that can support the drive towards faster, more cost efficient and sustainable manufacturing is an ongoing effort. The use of ultra-violet (UV) curing materials is one solution to this challenge. However, these technologies have not yet been widely adopted in aerospace due to limitations such as low Tg and service temperatures and the potential challenges associated with adopting new processes that are radically different from conventional thermal curing methods. Therefore, a need exists for a UV curing technology more suitable for the higher temperatures and extreme environmental conditions required for aerospace applications, as well as better investigation into the best practices and processes for UV curing materials. As a result, a new free-radical UV curing material has been developed that has similar properties to conventional heat-cured high-temperature thermosetting materials. The work presented in this paper will discuss the viability of this new technology for use in high-rate manufacturing and repair of aerospace parts, as well as the preliminary examination of the optimum curing and processing conditions needed for usage in aerospace applications.

References: “Ultraviolet Lamp.” Britannica January 5, 2024 ❮Britannica.com/technology/ultraviolet-lamp❯. 2.“How it works-UV Curing for Printing.” Alpha-Cure January 5, 2024 ❮alpha-cure.com/news-article/how-it-works-uv-curing-for-printing❯. 3.Strongone, V.; Bartoli, M.; Jagdale, P.; Arrigo, R.; Tagliaferro, A.; Malucelli, G. “Preparation and Characterization of UV-LED Curable Acrylic Films Containing Biochar and/or Multiwalled Carbon Nanotubes: Effect of the Filler Loading on the Rheological, Thermal and Optical Properties.” Polymers 12 (2020) 796-811. 4.Mendes-Felipe, C.; Oliveira, J.; Etxebariia, I.; Vilas-Vilela, J.L.; Lanceros-Mendez, S. “State-of-the-Art and Future Challenges of UV Curable Polymer-Based Smart Materials for Printing Technologies.” Adv. Mater. Technol. 4 (2019) 1800618. 5.Chunfu Chen et al. (2018). UV and Thermal Cure Epoxy Adhesives. F. Yilmaz, Paint and Coatings Industry (71-85). DOI: 10.572/intechopen.82168 6.Wallick, J.; Pantoja, M. “New UV Curing Composite Technology for High Rate Aerospace Manufacturing,” SAMPE 2023 (Seattle, WA 2023), Society for the Advancement of Material Process Engineering. 7.Husar, B.; Ligon, S.C.; Wutzel, H.; Hoffman, H.; Liska R. The formulator’s guide to anti-oxygen inhibition additives. Process in Organic Coatings (2014) 1789-1798. 8.Black, Sara. “Technologies for UV curing of composite laminates demonstrated.” Composites World January 8, 2024 ❮compositesworld.com/articles/technolgogies-for-uv-curing-of-composite-laminates-demonstrated❯. 9.Marshall, S.J.; Bayne, S.C.; Baier, R.; Tomsia A.P.; Marshall G.W. “A review of adhesion science.” Dental Materials 26 (2010) 11-16. 10.Budhe, S.; Banea, M.D.; Barros S.; Silva, L.F.M. “An updated review of adhesively bonded joints in composite materials.” International Journal of Adhesion & Adhesives 72 (2017) 30-42. 11.Tauber, A.; Scherzer, T.; Mehnert, R. UV Curing of Aqueous Polyurethane Acrylate Dispersions. A Comparative Study by Real-Time FTIR Spectroscopy and Pilot Scale Curing. J. of Coat. Technol. 2000, 72(911), 51-60 12.Jafarzadeh, S.; Johansson, M.; Sundell, P.-E.; Claudino, M.; Pan, J.; Claesson, P.M. UV-curable acrylate-based nanocomposites: effect of polyaniline additives on the curing performance. Polym. Adv. Technol. 2013, 24, 668-678 13.de Gennes, P.G. Kinetics of diffusion-controlled processes in dense polymer systems. I. Nonentangled regimes. J. Chem. Phys. 1982, 76(6), 3316-3321 14.de Gennes, P.G. Kinetics of diffusion-controlled processes in dense polymer systems. I. Nonentangled regimes. J. Chem. Phys. 1982, 76(6), 3316-3321. 15.Park, J.-W.; Shim, G.-S.; Back, J.-H.; Kim, H.-J.; Shin, S. Characteristic shrinkage evaluation of photocurable materials. Polym. Test. 2016, 56, 344-353 16.Qingkai, W.; Beiqing, H.; Xianfu, W.; Haochen, S. Study on Shrinkage of Cured Volume for UV-Curing Coatings. Appl. Mech. and Mats. 2015, 731, 588-592 17. Ligon, S.C.; Husar, B.; Wutzel, H.; Holman, R.; Liska, R. Strategies to reduce oxygen inhibition in photoinduced polymerization. Chem. Revs. 2014, 557-589 18.Karalekas, D.; Aggelopoulos, A. Study of shrinkage strains in stereolithography cured acrylic photopolymer resin. J. of Mater. Process. Technol. 2003, 136, 146-150 19.Lu, J.; Youngblood, J. “Adhesive bonding of carbon fiber reinforced composite using UV-curing epoxy resin.” Composites Part B. 2015, 82, 221-225. 20.Hu, F.; Soutis, C. “Strength prediction of patch-repaired CFRP laminates loaded in compression.” Composites Science and Technology. 2000, 60, 1103-1114.

Conference: SAMPE 2024

Publication Date: 2024/05/20

SKU: TP24-0000000042

Pages: 16

Price: $32.00