Wood waste delignification is a process known and used for longer time in the pulp and paper industry, whose technological adoption is necessary for producing wood foam. The new cellular wood manufacturing procedure is attractive for the production of a cheap and effective insulating material for the building construction sector. Experimental testing of several tree wood types was initiated in recent decades and the team of the current paper authors was also recently involved in this research. The current paper aimed at testing the behaviour of birch wood in foaming made by delignification of waste in the form of sawdust. The work originality results from the premiere use of birch wood in the manufacturing process of a stable foam. Utilizing wood waste, nanoclay, an adequate surfactant, and distilled water as well as a heat treatment at 75ºC, products with peculiarities suitable to established objective were obtained.
PĂUNESCU et al. (Wed,) studied this question.