PZ-33 is an ethylene imine based tri-functional polyaziridine (XAMA® 7 equivalent) that is used as a crosslinker for both aqueous and non-aqueous coatings, inks, and adhesives to promote both physical and chemical properties.
With the highest level of functionality at 3.3, it yields the highest level of cross-link density of polyfunctional aziridines.
The aziridine end groups can react with active hydrogen as found on carboxyl groups of acrylic emulsions or polyurethane dispersions. PZ-33 also has a hydroxyl group, which allows it to dispersion readily into aqueous systems.
CAS Nº: 57116-45-7
Molecular Formula: C20H33N3O7
Appearance: Slight yellow liquid with amine-like odor
Aziridine Functionality: 3.3
Density (at 25ºC): 1.15-1.17 g/ml
Viscosity (at 25ºC): < 4000 cp
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