FIELD: chemistry.
SUBSTANCE: adhesive includes an adhesive composition containing a carbamide-malamine-formaldehyde resin, aerosil, wheat flour and ammonium chloride. The carbamide-malamine-formaldehyde resin in the adhesive is modified with polyacetal glycol and furfuryl alcohol, with ratio carbamide: polyacetal glycol: furfurlyl alcohol equal to 1:0.1-0.5:0.1-0.5.
EFFECT: invention increases quality of the adhesive composition owing to low toxicity, high strength of the adhesive joint, low water-absorption and water-swelling, as well as shorter curing time of the adhesive, which increases efficiency of pressing equipment.
5 tbl
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|---|---|---|---|
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|
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