Waterborne polyurethane adhesive composition and preparing method thereof
A technology of water-based polyurethane and composition, applied in the field of adhesives and chemical industry, it can solve the problems of poor initial adhesion strength, low peel strength, initial tack, poor bond strength and peel strength, etc., achieve excellent water resistance, low cost, and increase water resistance Effect
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Embodiment 1
[0021] Recipe: a water-based polyurethane adhesive composition, the composition is composed of the following components by weight: 45 parts of modified polyurethane, 2 parts of acrylic leveling agent, 3 parts of dodecylbenzenesulfonic acid, filler 2 parts, 1 part of dioctyl sulfosuccinate sodium salt, 3 parts of curing agent, 12 parts of butyl glycol ether, 5 parts of aziridine, 4 parts of antioxidant, 3 parts of flame retardant.
[0022] The preparation method of described aqueous polyurethane adhesive composition comprises the steps:
[0023] (1) Preparation of modified polyurethane:
[0024] Heat acetone, 2,2-dimethylolpropionic acid, polyethylene glycol, γ-glycidoxypropyltrimethoxysilane, epoxy resin E-44, hydrogenated diphenylmethane diisocyanate to 60~75°C, react for 0.5~1h to obtain intermediate product A; then add 1,4-butanediol to the system, continue the reaction to obtain intermediate product B; add triethylamine to the system at 40°C, stir and neutralize , and th...
Embodiment 2
[0028] Formula: a water-based polyurethane adhesive composition, the composition is composed of the following components by weight: 55 parts of modified polyurethane, 5 parts of silicone leveling agent, 1.5 parts of sodium dodecylbenzenesulfonate, filler 3 parts of agent, 1 part of fatty alcohol polyoxyethylene ether, 4 parts of curing agent, 11 parts of propylene glycol methyl ether, 8 parts of triethylenetetramine, 5 parts of antioxidant, and 3 parts of flame retardant.
[0029] The preparation method of described aqueous polyurethane adhesive composition comprises the steps:
[0030] (1) Preparation of modified polyurethane:
[0031] Heat acetone, 2,2-dimethylolbutyric acid, polypropylene glycol, γ-glycidoxypropyl trimethoxysilane, epoxy resin E-51, dimethylene phenyl diisocyanate to 60 ~75°C, react for 0.5~1h to obtain intermediate product A; then add 1,4-butanediol to the system and continue the reaction to obtain intermediate product B; add ethylenediamine to the system...
Embodiment 3
[0035] Recipe: a water-based polyurethane adhesive composition, the composition is composed of the following components by weight: 60 parts of modified polyurethane, 4 parts of acrylic leveling agent, 3 parts of sodium dodecylbenzenesulfonate, filler 2 parts of agent, 1 part of fatty alcohol polyoxyethylene ether, 3 parts of curing agent, 12 parts of propylene glycol butyl ether, 9 parts of triethylenetetramine, 7 parts of antioxidant, and 3 parts of flame retardant.
[0036] The preparation method of described aqueous polyurethane adhesive composition comprises the steps:
[0037] (1) Preparation of modified polyurethane:
[0038] Acetone, 2,2-dimethylolpropionic acid, polytetrahydrofuran ether glycol, γ-glycidoxypropyltrimethoxysilane, epoxy resin E-44, 1,6-hexamethylene di Mix isocyanates, heat to 60~75°C, react for 0.5~1h to obtain intermediate product A; then add 1,4-butanediol to the system, continue the reaction to obtain intermediate product B; add triethylene to the ...
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