2results about "Unsaturated ether polymer adhesives" patented technology

The application discloses a kind of fast wet state bonding formaldehyde-free adhesive and its preparation method and application, belong to high molecular adhesive preparation technical field.The above-mentioned fast wet state bonding formaldehyde-free adhesive is prepared from the following weight parts components: resin matrix 15-30 parts, polar aprotic solvent 70-85 parts, multi-functionality epoxy crosslinking agent 0.75-6 parts;The resin matrix is the molecular weight 200 kDa above olefin-maleic anhydride alternating copolymer;The polar aprotic solvent is dimethyl sulfoxide or sulfolane;The multi-functionality epoxy crosslinking agent is 4,4'-diamino diphenyl methane tetraglycidyl amine, isocyanuric acid triglycidyl ester, triglycidyl amine, epoxy soybean oil or epoxy castor oil.The adhesive of the application utilizes specific solvent-resin system, realizes fast, strong and tough bonding in humid, underwater and even various liquid environments by the mechanism of pre-crosslinking in good solvent and fast solvent exchange in poor solvent.