Carbodiimide Crosslinkers for Waterborne Resins

Carbodiimide Crosslinkers for Waterborne Resins

Carbodiide Crosslinkers for Waterborne Resins

CARBODILITE Waterborne crosslinking agents are waterborne polycarbodiimide resin which contains carbodiimide group [-N=C=N-] with hydrophilic segments.
CARBODILITE Waterborne crosslinking agents are low-toxic, highly reactive crosslinking agents that react with carboxy group. They can be cured at room temperature or higher if faster reaction is desired.

Characteristics

  • Crosslinking agent for Waterborne Resins*, paints, inks, adhesives and coatings
  • High safety and the use of environmentally friendly technology
    1. (1) Non or Low Toxic & Safety (Non or Low skin irritant, Negative: Ames test)
    2. (2) Environmentally Friendly (VOC free)
    3. (3) Great Reactivity with Carboxylic Acid
    4. (4) Long Pot-Life
    5. (5) Easy of use (No premix, etc.)
    6. (6) Adhesion improvement
    7. (7) Excellent anti-hydrolysis property
  • *Compatible to waterborne acrylic resins, acrylic emulsions, polyurethane dispersions, water dispersed polyester, etc.

Properties

  • There are water solution type, emulsion type/dispersion type in CARBODILITE series
Grade V-02 V-02-L2 SV-02 V-04 V-10 E-02 E-05
Appearance Water Solution Emulsion/
Dispersion
(Surfactant-free)
Emulsion/
Dispersion
(Incl.Surfactant)
Solid content 40% 41.3%
Co-Solvent None (60% Deionized-water)
pH 9~12 8~11 8~11 6~9 9~12 8~11 8~11.5
Viscosity (mPa·s)* 100 70 100 140 100 10 100
– NCN –
Equivalent**
590 385 430 335 410 445 310
Position Standard High-NCN High-
Crosslink
density
Anti-
hydrolysis
&
Adhesion
Fast cure Long
pot-life
High-NCN
Extra long
pot-life
Acute dermal
irritation
Non Irritant Slightly Irritant Non
Irritant
Acute oral
toxicity (LD50) (Rat)
>2,000mg/kg - - -
Acute dermal
toxicity (LD50) (Rat)
>2,000mg/kg - - -
Germ cell
mutagenicity
(Ames test)
Negative

*Evaluated at 68°F/20°C (Standard Value)

**Carbodiimide equivalent shows chemical formula weight for 1 mole of carbodiimide group (Standard Value)

We have any grade to use for various ways.
If you hesitate about the choice of the grade, please contact us.
We suggest the most suitable grade and formulation.

Application Effects

You can add high performance to your resin with our CARBODILITE.
Common properties are,

  • Water / Chemical Resistance
  • Adhesion
  • Excellent Flexibility
  • Anti-Hydrolysis Property

We believe that CARBODILITE solves your problem.

  • Good Solvent Resistance
Resin Commercial PUD (Metal/Plastic coating)
Crosslinking agent
(Solid content)
CARBODILITE (SV-02, V-02-L2, E-02) 6wt%, Aziridine 6wt%, Isocyanate 23wt%
Coating
Substrate :
Aluminum plate
Cure :
212°F/100°C × 10min + R/T × 1day
Test method Double Rubbing Test
MEK (Methyl Ethyl Ketone) double rubbing (with crock meter : 900g)
Rubbed and checked coating appearance visually (break away)
Good Solvent Resistance

CARBODILITE improved the solvent resistance of Resins.

  • Good Alkali Resistance
Resin Commercial Acrylic emulsion (Ink)
Crosslinking agent
(Solid content)
CARBODILITE (SV-02, V-02-L2, E-02) 4wt%, Aziridine 4wt%, Isocyanate 16wt%
Coating
Substrate :
Aluminum plate
Cure :
212°F/100°C × 10min + R/T × 1day
Test method

Spot Test
Soak the test substance with a cotton ball and apply to the test panel for 1 hour
Score : 10 no damage >>> 1 severe damage
Chemical : Ammonia (1.4%)

cotton ball

Good Alkali Resistance

CARBODILITE improved the alkali resistance of Resins.

  • Good Chemical resistance
Resin Commercial PUD (Metal coating)
Crosslinking agent
(Solid content)
CARBODILITE (V-02-L2, E-02) 6wt%, Aziridine 6wt%
Coating
Substrate :
Aluminum plate
Cure :
320°F/160°C × 10sec + R/T × 1day
Test method

Spot Test
Soak the test substance with a cotton ball and apply to the test panel for 1 hour
Score : 10 no damage >>> 1 severe damage

Good Chemical resistance

CARBODILITE reacted at high temperature, short time.

  • Good Adhesion
Resin Commercial Acrylic emulsion (Ink)
Crosslinking agent
(Solid content)
CARBODILITE (SV-02, V-02-L2, E-02) 8wt%, Aziridine 8wt%, Isocyanate 16wt%
Coating
Substrate :
OPP film
Cure :
140°F/60°C × 5sec + R/T × 3days
Test method Measuring Adhesion by Tape Test
#Tape : Permacel#99

Cross-cut test

Cross-cut test

CARBODILITE improved the adhesion of the coating to substrate.

  • Pot-Life : Long Pot-Life
Resin Commercial PUD (Paint)
Crosslinking agent
(Solid content)
CARBODILITE (SV-02, E-02) 6wt%, Isocyanate 23wt%
Keeping temperature 104°F/40°C
Coating
Substrate :
Aluminum plate
Cure :
212°F/100°C × 10min + R/T × 1day
Test method Double Rubbing Test
MEK (Methyl Ethyl Ketone) double rubbing (with crock meter : 900g)
Rubbed and checked coating appearance visually (break away)
Pot-Life : Long Pot-Life

CARBODILITE had a long pot-life.

Application Examples

  • Automotive Interior/Exterior Coating
  • Floor Coating (Wood, Concrete etc.)
  • Coil Coating (Pre-coated metal etc.)
  • Leather Coating
  • Synthetic Leather
  • Adhesive
  • Architectural Exterior Paint
  • Ink, Over Print Varnish
  • Film Coating
  • Textile Printing
  • Glass Fiber Binder
  • Other General Waterborne Resins

Reaction of Carbodiimide

Carbodiimide group of CARBODILITE reacts with Carboxy group as shown below.

Carbodiimide group of CARBODILITE reacts with Carboxy group as shown below.

For more fast reaction, you can.

For more fast reaction, you can.

Regulation (Update Jun.2020)

TSCA (USA) Registered
REACH (EU) Polymer (All materials is Registered)
KECI (KOREA) Registered
IECSC (CHINA) Registered
TCSI (TAIWAN) Registered
ENCS (JAPAN) Registered

Please ask us the detail of this inventory because it depends on the grades.