Development of New Interphases Based on Organic/Inorganic Layered Structures for Continuous Fibre Reinforcements
Nature offers outstanding concepts for combining inorganic and organic materials to create high-performance composites with efficient material usage. Examples are the structures of nacre or glass sponge. The 3D skeletal structure of glass sponges is created from a ring-shaped and yet very complex interplay of different, primarily brittle filament-like components, which are connected to each other in layers by very small amounts of ductile organic components. A structure with specific mechanical properties is created across all scales – from nano- to micro- to macroscopic scale – with efficient use of predominantly brittle, mineral materials. The transfer of this concept to the development of endless fiber-based reinforcement structures for high-strength, ductile mineral-bonded composites is the main goal of this subproject. Inorganic layers/particles and organic layers are applied to the fiber surfaces of rovings (multifilament yarns) in such a way that a multilayer coating structure is created.
Publikationen | Publications
Bompadre, F.; Scheffler, C.; Utech, T.; Donnini, J. (2021) Polymeric Coatings for AR-Glass Fibers in Cement-Based Matrices: Effect of Nanoclay on the Fiber-Matrix Interaction in: Appl. Sci. 11, issue 12, 5484 – DOI: 10.3390/app11125484
Marquis, E.; Utech, T.; Klempt, V.; Scheffler, Chr.; Loehnert, S. (2023) Computational Modeling and Experimental Investigation of a Single-Fiber-Pull-Out Test with a Bio-Inspired Carbon Fiber-Matrix Interphase in: Ilki, A.; Çavunt, D.; Çavunt, Y. S. [eds.] Building for the Future: Durable, Sustainable, Resilient – Proc. of fib Symposium 2023, 05.–07.06.2023 in Istanbul (Turkey), publ. in: Lecture Notes in Civil Engineering 350, Cham: Springer, p. 1252–1261 – DOI: 10.1007/978-3-031-32511-3_128
Utech, T.; Kruppa, H.; Vollpracht, A.; Scheffler, Chr. (2022) Interphases with organic/anorganic layered micro-structures for enhanced carbon-fiber-matrix interaction in alkali-activated binders in: Stokkeland, S.; Braarud, H. C. [eds.] Concrete Innovation for Sustainability – Proc. for the 6th fib International Congress 2022, 12.–16.06.2022 in Oslo (Norway), Oslo: Novus Press, p. 547–556.
Vorträge und Poster | Oral presentations and posters
Utech, T.; Diring, O.; Synytska, A.; Scheffler, Chr. (2021) Bioinspired functional interphases in carbon fiber reinforced concrete composites poster at:Aachen-Dresden-Denkendorf International Textile Conference 2021, 09./10.11.2021 in Stuttgart (digital event).
Studentische Arbeiten | Student’s works
Brahimi, F. (2023) Experimentelle Untersuchungen zum Materialverhalten einer modifizierten Carbonbewehrung [Bachelorarbeit]. (mit | with C02)