Efficient compound catalyst process for casting nylon

摘要: The invention discloses an efficient compound catalyst process for casting nylon, and belongs to the technical field of chemical materials. includes following steps: (1) adding solid caprolactam into sealed stainless steel tanks A B, heating 130 DEG C, melting, vacuumizing remove water 30 min until liquid surface is stationary; (2)adding a novel tank A, insulating 5 at temperature wherein consists hexamethylene diisocyanate polycyclotrimer, internal ester 1,6-hexamethylene diisocyanate; (3) sodium C; (4) mixing 170 then curing 15 obtain nylon. simple in process, wide source raw materials, short time catalyst, excellent incuring performance, low cost, environmentally friendly preparation creating concept developing nylon with long adaptive phase.