Fraunhofer Institute for Wood Research
Wilhelm-Klauditz-Institut WKI
Fraunhofer Institute for Wood Research
Wilhelm-Klauditz-Institut WKI

Quality Assessment

Research and Development

Research Focuses

 

© Fraunhofer WKI | Manuela Lingnau

Formaldehyde Testing Methods

We do not only test products regarding formaldehyde – we also apply our years of experience to further develop the testing procedures.

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© Fraunhofer WKI | Manuela Lingnau

Gluing, Bonding and Adhesives

We develop and optimize adhesive systems for the production of wood-based materials and for wooden construction.

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Our department:

Research Projects

Here you will find details of selected research projects. Please contact us if you require more information concerning our project portfolio.

 

© Fraunhofer WKI

Influence of extractives on wood bonding

The load-bearing capacity and durability of wood bondings is influenced by, amongst other things, the wood's own extractives. In collaboration with the Universität Hamburg, we are investigating the extractives content of various woods and their influence on the bonding properties. In doing so, we are creating the foundation for wood species-specific adhesive systems in the construction industry - including for hardwoods, which will be used more extensively in the future.

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© Gregor Wisner | TU Braunschweig

SpeedTeCC

In cooperation with the Institute of Joining and Welding Techniques (TU Braunschweig) and the department for Timber Structures and Building Rehabilitation (University of Kassel), we are developing procedures and technologies for the quick and simple production of high-quality wood-concrete composite elements through application of an innovative rapid-bonding technique. 

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© Fraunhofer WKI | Manuela Lingnau

Additional benefits of “NawaRo” insulation materials

Under the leadership of the Fraunhofer WKI, a consortium of twelve research institutes is conducting interdisciplinary research into holistic solutions in order to significantly increase the application of insulation materials made from renewable raw materials (German: nachwachsende Rohstoffe, “NawaRo”). 

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© Fraunhofer WKI | Manuela Lingnau

Low-formaldehyde dispersion adhesives

For the manufacture of wood-based products, aminoplastic resins containing formaldehyde are primarily used as binding agents. The goal of this project is the development of an alternative in the form of an innovative low-formaldehyde dispersion adhesive for the production of wood-based materials on the basis of polyvinyl acetate (PVAc) with radical polymerizable sugar derivatives. 

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© Fraunhofer WKI | Maria Brodel

EcoPressWood

Pressed wood panels are composed of chopped or cut wood that is glued together using adhesives. Most of these resins are petroleum based products containing a hazardous chemical: formaldehyde. The acceptable levels of formaldehyde in wood pressed products have been reduced over the past decades due to increased public awareness on its effects on health and the consequent consumer demand for non-hazardous products. We are developing a formaldehyde-free thermo-setting bio-based resin (pre-polymer) for wood-based panels.

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© Fraunhofer WKI | Manuela Lingnau

Isocyanate reactivity in wood bonding

Due to the current debate concerning the emissions of formaldehyde from wood-based materials, an enhanced potential for isocyanates as cross-linking adhesive components can be seen. The application of isocyanates in wood bonding may not, however, be regarded as trivial. We are developing an analytical method which will enable us to follow and evaluate the isocyanate reactivity. 

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More projects

Current publications of our department

Here you will find current publications resulting from the research work carried out by our department. All publications made by the Fraunhofer WKI in trade journals and conference proceedings (since 1980) are recorded in the database “Fraunhofer-Publica”. Furthermore, all articles from a particular year are listed in our Annual Report.

JahrTitel/AutorDokumentart
2020Holzwerkstoffindustrie muss sich aktiv einbringen: Verwendung von Holzwerkstoffen als Bauprodukt bzw. bei der Anwendung von Bauarten nach der Revision von Eurocode 5
Schwab, Harald; Winter, Stefan		Zeitschriftenaufsatz
Diese Publikationsliste wurde aus der Publikationsdatenbank Fraunhofer-Publica erstellt.