The present invention relates to curing agents for epoxy resins, containing at least one adduct of a primary diamine and an aromatic monoepoxide, at least one primary diamine and at least one secondary diamine which is free of primary amino groups and free of hydroxyl groups. The curing agent is of low viscosity and cures, together with epoxy resins, rapidly and without blushing, even under damp, cold conditions, to form films of high hardness and low brittleness. It is particularly well suited for low-emission coatings that cure at room temperature.
本发明涉及一种环氧
树脂固化剂,包含至少一个主要二胺和一个芳香单
环氧化物的加成物,至少一个主要二胺和至少一个不含主要
氨基和羟基的次要二胺。该固化剂粘度低,能够与环氧
树脂一起迅速固化,即使在
潮湿、寒冷的条件下也不会出现发红,并形成高硬度和低脆性的薄膜。它特别适用于在室温下固化的低排放涂料。