Polyaziridine

Polyfunctional aziridine are very versatile molecules used to improve both physical and chemical properties for both aqueous and non-aqueous formulations in coatings, inks and adhesive applications.

• ​High density crosslinking

• Room temperature curing

• Formaldehyde, isocyanate free products

• MDA free materials

• Low dosage formulations

Effects of polyaziridine concentration on tack, adhesion and cohesion

• Improves water and chemical resistance

• Improves mechanical resistance (rubbing, scuffing, abrasion, wear, black heel mark, fingernail mark)

• Increases cohesive strength

• Efficient tack modifier

Applications may run at room temperature or can be heat curing, for both aqueous and solventborne systems, adapting to the existing dispersing possibilities and working pot lives, handling and addition.

​

• The crosslinker is added to the formulated product just prior to use. It is a two-part system, not a onepart system.

• Typical addition levels range from 1% to 3% to finished formulations. The optimal amount in order to achieve the desired end results it is best determined by experimentation.

• The product should be added slowly and under good agitation, neat or premixed into a solution. If added in a solution, a solvent without active hydrogen is ideal. Water may be used, as long as the pre diluted product is added to the system immediately.

• Once added, typical systems will have a pot life of 12-24 hours to 4-8 hours, depending on the specific type, temperature and pH. Testing for the pot life length of each system is always recommended to achieve the desired properties.

​Benefits

Application

Chemical Resistance Controls after 7 days, room temperature

The Lineups

PZ-33

CAS Nº:57116-45-7

PZ-28

CAS Nº:64265-57-2

PZBI-100

CAS Nº:7417-99-4

PZ-28 UPS

CAS Nº:64265-57-2

PZH-25

CAS Nº: Propietary

PZ-33

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

Ethylene imine polyurea based bi-functional agent that may be formulated as 25% active matter waterborne dispersions and used as a crosslinker for aqueous coatings, inks, and adhesives to promote both physical and chemical properties.

The aziridine end groups can react with active hydrogen as found on carboxyl groups of acrylic emulsions or polyurethane dispersions.

As a waterborne product, the product is easy to mix with aqueous bases targeted to heat curing 2K processes. 80ºC are usually enough to start the crosslinking reaction.

PZ-28

CAS Nº:7417-99-4

Molecular Formula : C24H41N3O6
Appearance : Slight yellowish liquid with amine-like odor
Aziridine Content : 5.9-6.5 meq/g
Aziridine Functionality : 2.8
Density (at 25ºC) : 1.05-1.09 g/ml
Viscosity (at 25ºC) : 100-300 cp

Propylene imine tri-functional polyaziridine that is used as a crosslinker for both aqueous and non-aqueous coatings, inks, and adhesives to promote both physical and chemical properties.

The aziridine end groups can react with active hydrogen as found on carboxyl groups of acrylic emulsions or polyurethane dispersions.

PZBI-100

CAS Nº:7417-99-4

Molecular Formula: C19H20N4O2
Appearance: white powder
Loss on drying: ≤ 0.5%.
Assay (HPLC): ≥ 97%.

Ethylene imine polyurea based bi-functional agent that may be formulated as 25% active matter waterborne dispersions and used as a crosslinker for aqueous coatings, inks, and adhesives to promote both physical and chemical properties.

The aziridine end groups can react with active hydrogen as found on carboxyl groups of acrylic emulsions or polyurethane dispersions.

As a waterborne product, the product is easy to mix with aqueous bases targeted to heat curing 2K processes. 80ºC are usually enough to start the crosslinking reaction.

PZ-28 UPS

CAS Nº:7417-99-4

Molecular Formula : C24H41N3O6
Appearance : Slight yellowish liquid with amine-like odor
Aziridine Content : 5.9-6.5 meq/g
Aziridine Functionality : 2.8
Density (at 25ºC) : 1.05-1.09 g/ml
Viscosity (at 25ºC) : 100-300 cp

Propylene imine tri-functional polyaziridine that is used as a crosslinker for both aqueous and non-aqueous coatings, inks, and adhesives to promote both physical and chemical properties.

The aziridine end groups can react with active hydrogen as found on carboxyl groups of acrylic emulsions or polyurethane dispersions.

Ultra pure | Free of residual solvents | Free of residual monomer

PZH-25

CAS Nº: Proprietary

Molecular Formula : Property formulation
Appearance : clear pale yellowish liquid
Solid content : 18 -20%
Viscosity (at 25ºC) : 2,5 cp

Propylene imine bi-functional aliphatic polyaziridine dissolved in dipropylene glycol methyl ether, that is used as a crosslinker for both aqueous and non-aqueous coatings, inks, and adhesives to promote both physical and chemical properties.

The aziridine end groups can react with active hydrogen as found on carboxyl groups of acrylic emulsions or polyurethane dispersions.

The product is easy to mix with aqueous bases targeted to heat curing 2K processes. 80ºC are usually enough to start the crosslinking reaction.

MDA Free | Low VOC Solution

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