Abstract: In this paper the mixting process and crossh'nking reactions of the acrylate copolymer latex containing carboxyls and the latex containing epoxy resin have been investigated.The experimental results showed that the mixed latex has a good mechanical stability, whose storage life can reach 5 months under ambient temperature.It is demonstrated that benzyl dimethyl amine is a preferable accelerator for the cTosslinking reaction and the crosslinking mechanism is mainly a mono-esterification process in presence of benzyl dimethyl amine by the analysis of mass spectra and IR.The mixed latex could be cured under moderate temperature (<100℃).The coated film of mixed latex exhibits good physical properties than those of initiate latexes.

Key words: Mixing and crosslinking of latex, Crosslinking under moderate temperature, Physical properties of coating film