A solvent-free, flexible adhesive that can be easily constructed in different temperature environments

摘要

A solvent-free flexible adhesive, easily constructed in different temperature environments, consisting of a hydroxy component and an isocyanate component consisting of components containing the following weight fractions: castor oil 44,45 ~49,45%,the hydroxylated polybutadiene 10 ~25%,Ethylene glycol 10 ~15%,Liability intermediary 0,5 ~0,8%,Polypropylene oxide ether 5 ~30%,Catalyst 0,05 ~0,1%,the molecular weight of the hydroxylated polybutadiene referred to above is 1000 ~3000, the molecular weight of the polypropylene oxide ether referred to is 1000 ~4000, the abovementioned adhesive mediator is KH560, the abovementioned catalyst is zinc oxide; the abovementioned isocyanate component consists of components, containing the following weight fractions: polyester polyol 34,99 ~64,99%,hydroxylated polybutadiene 10 ~40%,Isocyanate 25%,Benzoyl chloride 0,01%,the above polyester polyol is the polyester polyol of Asahikawa Chemical produced polyester polyol XCP-822NH, the mentioned isocyanate is TDI-80/20; the mass ratio of the hydroxy component to the isocyanate component is 100: 90-100: 60.