三羟甲基丙烷-三(3-吖丙啶基丙酸酯) (CAS No.52234-82-9)

Product Name:Trimethylolpropane tris(3-aziridinylpropionate)

English Name:Trimethylolpropane tris(3-aziridinylpropionate)

CAS No.:52234-82-9

Aliases:Trifunctional aziridine crosslinker, TMPTA-AZ, Trimethylolpropane tris(1-aziridinepropionate)

Molecular Formula:C21H35N3O6

Physical Properties:Appears as a colorless to light yellow transparent viscous liquid containing three reactive aziridine rings. Density approximately 1.10 g/cm³ at 25°C, boiling point above 200°C (decomposition), flash point approximately 110°C (open cup). Soluble in acetone, ethanol, ethyl acetate and other organic solvents; slightly soluble in water. Highly reactive, easily undergoes ring-opening polymerization under acidic conditions; should be stored sealed and protected from light.

Uses:Primarily used as a room-temperature crosslinking agent for waterborne coatings, waterborne adhesives, and inks based on polyurethane and acrylic systems. It reacts with carboxyl groups on polymer chains via ring-opening to form a three-dimensional network structure, significantly improving the water resistance, adhesion, and chemical resistance of the cured film. Also used in leather finishing agents and textile auxiliaries to enhance film-forming properties.

Technical Specifications:

Assay (GC) ≥ 95.0%

Viscosity (25°C): 200-800 mPa·s

Density (25°C): 1.05-1.15 g/cm³

Acid value ≤ 5 mg KOH/g

Water content ≤ 0.2%