BUP40 - FLIPSS

By reducing the weight of vehicles, fuel consumption and CO₂ emissions can be lowered. The use of sustainable fiber-reinforced composites as a lightweight solution is therefore essential for the development of climate-neutral mobility. In addition to using renewable and recycled materials, sustainability is significantly determined by resource efficiency in the manufacturing process. Moreover, the performance of the composite material depends on the strength of the adhesion between the fiber and the polymer.

Aim

The aim of the project is to enhance the performance of sustainable fiber-reinforced plastics to expand their application possibilities. Therefore, a chemical-free process for the pretreatment of semi-finished fiber products will be tested within the project. Experiments will be conducted on natural fibers, recycled carbon fibers, and special glass fibers for this purpose. Using a laser, microscopic structures (LIPSS: Laser Induced Periodic Surface Structures) are to be created on the fiber surfaces, which can increase the surface area and achieve activation.

Approach

• Fundamental experiments on surface functionalization of fibers through LIPSS
• Characterization of the LIPSS
• Production of fiber-reinforced composites with pretreated fibers
• Mechanical characterization of these fiber-reinforced composites

Benefit

• Added value for fiber manufacturers: By dispensing with chemicals and adapting the fiber properties, fiber manufacturers can produce in a more environmentally friendly and flexible way.

• Added value for production: Increased efficiency, better mechanical properties of the fiber composite and lower material usage with the same performance.

• For the vehicle owner this means: Vehicles become lighter, more efficient and produce fewer CO₂ emissions.