Tannin‐based bio‐adhesives for the wood panel industry as sustainable alternatives to petrochemical resins

The development of natural‐based adhesives is a key aspect in reducing the consumption of fossil resources, in adapting to legislation on the use of formaldehyde and in ensuring the sustainability of the wood panel industry. This study focuses on five alternatives for tannin‐based adhesives (tannin‐paraformaldehyde, tannin‐glyoxal, tannin‐hexamine, tannin non‐isocyanate polyurethane (NIPU) with ammonium hydroxide and tannin NIPU with HDMA...