Polyfunctional Aziridine Crosslinker; Aziridine Crosslinker;Cross Linker;Polyaziridine;Crosslinker C-100

Trifunctional Aziridine Crosslinker Cas No.:64265-57-2 . Crosslinkers are widely used in the waterborn acrylic resin and waterborn polyurethane emulsion system, such as leather, printing, dye printing, printing ink, waterborn coating, pressure sensitive rubber.

Description:
Crosslinker C-100 is a polyfunctional aziridineliquid crosslinker. Addition of 1-3% to water based acrylic emulsions or urethane dispersions produces a marked improvement in water, chemical, abrasion and humidity resistance and enhances adhesion to specific substrates.
Specification:
Product Name:Trifunctional Aziridine Crosslinker
Chemical Name:Trimethylolpropane Tris(2-Methyl-1-Aziridine)Propionate
Molecular Formula:C24H41N3O6
Specific gravity(g/cm3)(250C):1.0500~1.0800
Refractive index(25°C):1.4600~1.4850
Viscosity(mPa.S) (25°C):50~800
Assay (%):99
Appearance:Light yellow viscous liquid
Free aziridine(ug/g):<100
Freezing Point(°C) :<-15

APPLICATION 
In water based parquet lacquers to improve water, alcohol, detergent, chemical and abrasion resistance; 
In water based industrial wood-, plastic- and metal coatings to increase water, alcohol and block resistance; 
In vinyl coatings to reduce plasticizer migration and improve stain resistance; 
In water based concrete sealers to improve abrasion resistance; 
Generally, to improve adhesion of water based systems to non-polar substrates; 
In solvent based polymers to increase resistance properties; 
In water based printing inks to improve water and detergent resistance. 
FORMUlATING GUIDELINES 
Crosslinker C-100 is a tri-functional material that crosslinks polymers with reactive carboxyl functionalily; Typical addition levels of C-100 necessary to fully crosslink acrylic emulsions and urethane dispersions are 2% and 3% respectively; Crosslinker C-100 should be added to lacquers, paints or inks prior to use and due to its excellent water miscibility it can be stirred in by hand; The best method of addition is by using a 1:1 premix of C-100 and water; In water borne formulations, C-100 will slowly hydrolyse and blends should therefore be used within 1-2 days after preparation; The hydrolised products have no adverse effects on the emulsions nor on the dried films, and additional crosslinker may be added to restore reactivit; Solvent based systems modified by the addition of C-100 must be used within 5 days because they tend to thicken and may gel within 2 weeks.