Assuring an effective and durable flame retardancy for wood products is one of the major challenges for the application of wood in modern-day building environment (Östman et al. 2017). Most commercially available flame retardants (FR) are soluble in water, facilitating the wood treatment, but also making it prone to leaching by weathering (Östman et al. 2001). A way to reduce the leachability of the FR is the combination of (water insoluble) impregnation resins and the FR, encapsulating the FR (Lin et al. 2020). The impregnation resin treatment additionally enhances the dimensional stability and resistance against biological decay (Hill 2006), leading to a versatile product with excellent properties. Various impregnation resin systems and their combination with different FR have been studied at the Department for Wood Biology and Wood Products of the University of Göttingen. The aim of this study is to summarize and discuss the work carried out and the obtained results of these experiments.
Keywords: Flame retardancy, Wood modification, Fixation
Authors
Johannes Karthäuser
Georg-August University of Goettingen, Department of Wood Biology and Wood Products, Goettingen, Germany
Muting Wu
Georg-August University of Goettingen, Department of Wood Biology and Wood Products, Goettingen, Germany
Christoph Hötte
Georg-August University of Goettingen, Department of Wood Biology and Wood Products, Goettingen, Germany
Sanghun Yun
Georg-August University of Goettingen, Department of Wood Biology and Wood Products, Goettingen, Germany
Holger Militz
Georg-August University of Goettingen, Department of Wood Biology and Wood Products, Goettingen, Germany
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