Application Of A New Mannich Waterborne Epoxy Curing Agent

As an important me mber of the res in family, epoxy res in is known for itsexcellent performa nce, used in vario us fie lds of natio na l economy currently. In recentyears, with the nationa l environme ntal protection laws and regulations improving,People’s living standards improving, Water-based epoxy resin is an importantdeve lopme nt trend. As an important component of waterborne epoxy resin system,waterborne epoxy curing agent has a decis ive impact on the performa nce of the irapplications. Whether fro m the perspective of econo mic bene fits or fro m the view ofsocia l po int, De velop ment a nd application o f waterborne epoxy curing a gents aregoing to be a hot topic for research workers in the future.In this paper, mannic h amine was prepared by amine exchange. The reactionproducts reactive nonionic s urfactant o f polyethylene glyco l and a n epoxy access tothe mo lecular structure of the mannich a mine, so that it can have a self-emuls ifyingfunction. The n the epoxy e xpand the cha in, selection capping a gent to shut theprimary a mine, Reducing the crosslink ing dens ity and exte nding the applic ab le period,while increasing the co mpatib ility with the epoxy resin. Fina lly, Water borne epoxycuring agent is prepared by phase inversion emulsification technique.In this paper, ho memade waterborne epoxy syste ms is spent modified cementmortar. Waterborne epoxy syste ms were investigated to modify PO42.5and PO52.5ce ment mortar respective ly. Investigating the differe nt poly-ceme nt ratio, defoamersand conservation cause changes in dens ity, fluid ity, compressive strength and flexura lfor modified cement mortar. Poly-cement ratio have a greater impact on theperformance of mortar. In the range of experime nta l study, poly-ce ment ratio was15%better. Different defoamers have different matc hing with cement mortar, select theappropriate defoa mers is cruc ial. Conservation wa y affect the performance of themodified mortars, different conservation wa ys impact on the performance of themodified mortars, In the range of experime nta l study, water conservation has a betteroverall performance. Also, ho memade waterbo rne epoxy syste ms match better withPO42.5, has greater stability. fle xura l strength and compressive strength of theoptimized modified mortar meet mortarⅠ leve l require ments, Fle xura l strength reach28MPa, compressive strength reach64.8MPa After28days of water conservation.In this paper, home made waterborne epoxy systems are used for the production of anti-corrosion primer. Study the effect of severa l fillers on the e lectrochemica limpedance spectroscopy of film. Orthogona l experime nt was des igned to optimize theformulation, determine the optimal feed ratio.