PolyAziridine Global PZBI-25
- CAS Number
- 7417-99-4
- EC Number
- 231-034-6
- Chemical Name
- 44'-Bis(33-ethyleneureido)diphenylmethane
- Chemical Family
- Aziridines
PolyAziridine Global PZBI-25 is a cross linker agent that improves bonding and cohesive strength of resins and binders, resulting in films with better resistances, particularly scratch resistance, abrasion, hydrolysis and general chemical resistances. As a blocked isocyanate, the blocking end groups can react with active hydrogen as found on carboxyl groups of acrylic emulsions or polyurethane dispersions. An interesting feature is that no CO2 is released.
Properties
- Physical Form
- Liquid
Identification
- CASE Ingredients Features
- Abrasion ResistanceChemical ResistanceExcellent Scratch ResistanceHigh Durability
- CASE Ingredients Functions
- Crosslinking Agent
Product families
Applications
- Printing & Packaging — Other Printing & Packaging Applications
- Other Printing Applications
Product Families
- Chain Extenders & Crosslinkers
Other characteristics
- Synonyms
4,4′-Bis(3,3-ethyleneureido)diphenylmethane, 4,4′-Bis(ethyleneiminocarbonylamino)diphenylmethane, 4,4′-Bis(N′,N′-ethyleneurea)diphenylmethane, 4,4′-Diphenylmethanebis(ethyleneurea), 4,4′-Methylene bis(phenyl-N,N-ethyleneurea), Diphenylmethane 4,4′-diethyleneurea, Diphenylmethane-4,4′-bis(ethyleneurea), Diphenylmethane-4,4′-bis(N,N-diethyleneurea), Diphenylmethane-4,4′-bis(N,N-ethyleneurea), N,N′-(Methylene di-p-phenylene)bis(aziridine-1-carboxamide), N,N′-(Methylenedi-4,1-phenylene)bis(1-aziridinecarboxamide), N,N′-(Methylenedi-4,1-phenylene)bis[1-aziridinecarboxamide], NSC 26234, p,p′-Bis(ethyleneureido)diphenylmethane
- Functions
- Crosslinking Agent
- Usage
PZBI-25 can be used with various functional groups like carboxyl moieties, hydroxyl, chlorosulfonic, amines and even esters under appropriate conditions. These conditions range from room temperature for the carboxylic groups to 150ºC for the hydroxyl pending groups. Most standard conditions range from 80ºC to 120ºC in order to speed and complete cross linking process. Normal dosing varies depending on application process and results, but 1% to 3% of the dispersion over total formulation may be a good starting point.
- Markets
- Printing & Packaging
- Appearance
- milky liquid at 20ºC
- Technology
- CASE Ingredients
- Handling
Keep closed in the original packing in a cool, well ventilated place. Keep container closed when not in use. Keep the temperature between 5°C and 30°C. As all other water based products, low temperatures may affect the product. Dispersion can be destroyed after freezing.. Shake before using: product has a tendency to settling. Expiry date: 6 months. Please refer to the Safety Data Sheets in order to ensure safe handling, transport and personal protection.
Technical data
Table 1 of 1
4 rows| Characteristic | Value | Unit |
|---|---|---|
| Solid content | 27.5 ± 1.0 | — |
| pH (5%) | 10.5 ± 1.0 | — |
| Viscosity, at 25°C | max. 300 | cps |
| p.m. | 336.39 | — |
