FIELD: chemistry.
SUBSTANCE: invention relates to adhesives, particularly, to the adhesive two-component systems intended for production of lignocellulose composites, to the method of producing the adhesive composite and to lignocellulose composite. The adhesive composition contains a product of reaction of soya flour and a pitch containing (i) epoxide adduct with polyamine pitch, (ii) epoxide adduct with polyamide amine pitch, or (iii) epoxide pitch with polyamide pitch. The two-component adhesive system contains, (a) the first component including the product of reaction of (i) soya protein or lignine with (ii) the first composition selected from, at least, one alkylamine, unsaturated hydrocarbonic amine, hydroxylamine, amidine, amidine or amic acid, and (b) the second component which includes at least, one epoxide, alkanol or aldehyde. The way of producing lignocellulose composite includes applying the adhesive composition on, at least, one lignocellulose substrate. Note here that the adhesive composition contains a product of reaction of soya flour and a pitch containing (i) epoxide adduct with polyamine pitch, (ii) epoxide adduct with polyamide amine pitch, or (iii) epoxide pitch with polyamide pitch, and bonding the lignocellulose substrate coated with the said adhesive with, at least, another one lignocellulose substrate. The adhesive production method includes interaction (a) of soya flour with (b) the pitch containing (i) epoxide adduct with polyamine pitch, (ii) epoxide adduct with polyamide amine pitch, or (iii) epoxide pitch with polyamide pitch.
EFFECT: improved ecological properties of composites, decreased toxicity, higher strength of glutinous joints in composites.
19 cl, 9 ex, 7 dwg
