Creating an effective wood protectors from boric acid and aminoalcohols

Abstract

The study of the composition and structure of the reaction products formed in the systems: boric acid-monoethanolamine-water and boric acid-diethanolamine-water at an equimolar ratio of acid and alcohol in an alkaline environment. Using IR-spectroscopy,1H and11B NMR-spectroscopy revealed the formation of monoethanolamine(N→B)-threehydroxyborate and diethanolamine(N→B)-threehydroxyborate, in which the nitrogen and boron atoms are coordinated. In the process of drying the resulting product due to intramolecular condensation, a cyclic structure is formed. In the composition of the boron-nitrogen compounds obtained, the boron atom has a coordination number of four. The resulting boron-nitrogen compounds are effective antiseptics of wood building structures, and also exhibit flame retardant properties. There is boron-nitrogen coordination in the composition of the modifier molecule, due to which nucleophilic attack by water molecules is excluded. Therefore, the modifier is firmly fixed in the composition of the wood and provides durable protection against bio-corrosion and fire.