The functionalisation of fibres and surfaces is pursued in different directions at TITK. One focus is on boundary layer phenomena between the reinforcing fibres and the matrix in fibre composites. In order to effectively utilise the potential of fibre composites, good adhesion between fibre and matrix must be achieved. The TITK is therefore working intensively on different matrix materials (thermosets and thermoplastics), the optimal bonding of the fibres to the matrix and intelligent process design to optimise the property profile of the composites.
Intensive work is being done to identify solutions to improve adhesion by incorporating functional groups into the interface layers between the fibres and the matrix or to positively influence the wetting and impregnation of the fibres with the matrix by physical and process engineering means. To characterise the fibre surfaces and the fibre-matrix adhesion in the composite, we use special analytical, mechanical and microscopic test methods.
Another direction of work is very special functions that can be created by functionalising fibres and surfaces:
- Antibacterial fibres and textile fabrics through the use of natural or synthetic agents in fibres or through surface coatings.
- Inherently conductive carbon fibre materials as heating elements
- Chemisorptive and physisorptive additives for fibres, fibre granulates and surfaces for filtration tasks
- Textile interior surfaces with high abrasion and cleaning resistance
- Photochromic fibres, films and coatings with high resistance
- Textile, UV-sensitive detectors for the indication of solar radiation intensity for smart textiles.
More information
Research projects
- Ganß, K.: Untersuchungen zum Wirkmechanismus von Carbon-Stapelfasern in duroplastischen Matrixmaterialien (VF110033)
- Knobelsdorf, C: Schadstofffreie, hautfreundliche, hygienische Textilausrüstung durch den Einsatz von Chitosan (11275 B)
- Knobelsdorf, C.: Leitfähige CFK – Möglichkeiten zur Funktionsintegration (49VF170034)
- Knobelsdorf, C.: Funktionelle Fasern für Indikatorsysteme (15491 BR)
- Nechwatal, Dr. A.: Photochrome Moleküle in Kunststoffen – Potenzial zur Charakterisierung der Polymeren Feinstruktur und zur Funktionalisierung (VF 071021)
- Nechwatal, Dr. A.: Entwicklung getrickter Strukturen als UV- Detektor; Untersuchungen zum Zusammenhang zwischen uV-Intensität und photochromen Farbumschlag in Garnstrukturen(KF 2099110 HG 0)