ProBio: bio-hybrid components

Advanced Materials − The Basis of Innovative Buildings

Functionally-integrated, three-dimensional and variable production of bio-hybrid components with maximum organic content (ProBio)

© Fraunhofer WKI

In this project, we are developing new forms of bio-hybrid-fiber-reinforced composites (bio-HFC) with the highest possible proportion of bio-based components, i.e. reinforcing fibers and/or plastic matrices. The project planning as well as the feasibility study of innovative process chains for the manufacture of these composite materials in large-scale production also form a focus of this project.

In order to exploit the vast application potential of bio-HFC, the scientists involved in the project ProBio are developing new and practical combinations of natural and high-performance fibers, for example in the form of organic sheets, and are examining these regarding their properties. In order to further optimize the durability of these products, they take differing approaches towards improving the interface quality by means of surface modification.

Furthermore, advanced technologies for the production of innovative bio-HFC in large-scale production are also being investigated. One example of this is the manufacture of bio-hybrid textiles, for which a double-rapier weaving machine enables the load path-appropriate application of (different) reinforcing and matrix fibers. These hybrid textiles offer simplified handling and faster processing as well as considerable flexibility in the mechanical properties of the finished component. Moreover, the possibility exists of producing innovative bio-HFC-based components with short or longer fibers which are cut and selectively-attached by means of an automated fiber-spraying system. In addition to significant savings in material, this approach offers a load-oriented reinforcement, even in complex three-dimensional structures.

Focuses of the ProBio project are:

• development and testing of innovative organic sheets made from bio-HFC

• optimization of the interface quality between the components by means of surface modification

• project planning and creation of application-oriented bio-hybrid fiber semi-finished products

• development and realization of selectively-reinforced components made from bio-HFC by means of fiber-spraying technology

• Demonstrator: a tailgate manufactured from bio-HFC


Project duration: July 1, 2014 to June 30, 2019

Project coordinator: Fraunhofer WKI

Funding authority: Niedersächsisches Ministerium für Wissenschaft und Kultur (MWK)