| 摘要 |
PURPOSE:To provide the titled adhesive, composed of an epoxy resin, a thiol- containing highly crosslinked polysulfide polymer, a (modified) primary amine and a tertiary amine, having low viscosity, bonding firmly to wet concrete surface, and curable rapidly at a low temperature. CONSTITUTION:The objective adhesive is composed of (A) an epoxy resin having >=2 epoxy groups in the molecule, (B) a highly crosslinked polysulfide polymer crosslinked with >=5mol% crosslinking agent (preferably polyfunctional alkyl halide) and having >=2 thiol groups in the molecule [preferably a polymer of formula (R is alkyl constaining 0-3 ether groups and 0-2 thiol groups; x is 1-3; n is 1-20) having an average molecular weight of 300-7,000] (C) a (modified) primary amine (e.g. diethylenetriamine), and (D) a tertiary amine (e.g. N,N-dimethyldodecylamine).
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