New products from bark to replace fossil compounds: Adhesives and insulating foams from softwood bark tannins

Scientists have developed tannin extraction from softwood bark. At least 130 kg of crude tannin powder can be produced from one ton of dry wood bark, still leaving 87% of the original bark mass available for incineration. In Finland, tannin could replace, in particular, fossil-based phenols in adhesives used in the wood products industry.



from News -- ScienceDaily http://ift.tt/17N6XMt via Karis World