PRODUCTS

POLYMERIC CARBODIIMIDE

CAS Number: Not available
EC Number: Not available

SYNONYMS:
Polycarbodiimide, Polycarbodiimides, Polymeric carbodiimide crosslinker, Carbodiimide polymer, Polycarbodiimide resin

Polymeric carbodiimide is also known as antioxidant PCD.
Polymeric carbodiimide is a brown powder.
Relative density of Polymeric carbodiimide is 1.05.

The softening point of Polymeric carbodiimide is 70~80 ℃.
Polymeric carbodiimide is easily soluble in petroleum, benzene, carbon tetrachloride and ethyl acetate.
Polymeric carbodiimide is insoluble in acetone, insoluble in ethanol and water.

Polymeric carbodiimide is light yellow transparent liquid
Polymeric carbodiimide is soluble in polyester polyols as well as most organic solvents and water

Polymeric carbodiimide is an anti-hydrolysis agent for water-based and oil-based polyurethane.
Polymeric carbodiimide is suitable for polyester hot-cast polyurethane, polyester polyurethane adhesive, polyester thermoplastic polyurethane (TPU), and polyurethane sole systems made of polyester polyol.

Polymeric carbodiimide is an anti-hydrolysis stabilizer for polyester polyurethane and polyester thermoplastic polyurethane (TPU).
The addition amount is about 1.0–4.0 parts by weight of Polymeric carbodiimide per 100 parts of the polyol component of the PU system.
Polymeric carbodiimide is an antihydrolysis agent for: Hot casting polyester polyurethanes, Polyurethane shoe-sole systems based on polyester polyols, Polyester polyurethane adhesives, Thermoplastic polyester polyurethanes (TPU) as well.

It is recommended to add 1.0 - 4.0 p.b.w. Polymeric carbodiimide on 100 p.b.w. of the polyol component.
However, prior tests should always be carried out to determine the most suitable dosage.
Upon processing, Polymeric carbodiimide is normally dissolved in the polyester polyol.

Alternatively, Polymeric carbodiimide may be added to the pre-polymers (only with terminal OH groups).
Or Polymeric carbodiimide may be added directly into the mixing head in case of cast systems.
Polymeric carbodiimide is an antihydrolysis agent based on a ~1,000 MW oligomeric aromatic carbodiimide.

Polymeric carbodiimide is suitable for thermoplastic polyester polyurethanes (TPU) and polyester polyurethanes.
Carbodiimide content of Polymeric carbodiimide is 6.0% minimum.
Polymeric carbodiimide acts as an acid scavenger in polyester systems.

Acids, in the presence of moisture and heat, catalyze the hydrolysis (or unzipping) of polyesters.
Polymeric carbodiimide reacts faster than the higher molecular weight Stabaxol P and P 400.
But Polymeric carbodiimide reacts slower than the monomeric Stabaxol 1LF grades.

Consequently, Polymeric carbodiimide is a good choice for long-term protection against hydrolysis when the ease of a liquid additive is required.
Polymeric carbodiimide is an effective anti-hydrolysis agent for polyester polyurethanes and thermoplastic polyester polyurethanes (TPU).

Polymeric carbodiimide is liquid at room temperature, making it easier to process with polyurethanes.
The dosage level of Polymeric carbodiimide indicated is 1–4 p.b.w.
Polymeric carbodiimide has a shelf life of 24 months.

It is recommended to add 1.0 - 4.0 p.b.w. Polymeric carbodiimide on 100 p.b.w. of the polyol component.
However, prior tests should always be carried out to determine the most suitable dosage.
For processing, Polymeric carbodiimide is normally dissolved in the polyester polyol.

Alternatively, Polymeric carbodiimide may be added to the pre-polymers (only with terminal OH groups).
Or Polymeric carbodiimide may be added directly into the mixing head in case of cast systems.
Polymeric carbodiimide is liquid at room temperature, which facilitates processing in polyurethanes.

Polymeric carbodiimide is water-miscible and can be processed easily in water-based systems, e.g. dispersion adhesives.
The solubility in common organic solvents enables a wide application range for Polymeric carbodiimide.

USES and APPLICATIONS of POLYMERIC CARBODIIMIDE:
Crosslinking Agent: Polymeric carbodiimide is used in aqueous resins like polyurethane and acrylic dispersions to form N-acyl urea linkages, enhancing mechanical strength and chemical resistance.
Polymer Additive: Polymeric carbodiimide improves durability and performance of polymers.

Coupling Agent: Polymeric carbodiimide facilitates the formation of amide bonds in organic synthesis.
Biomedical Applications: Polymeric carbodiimide is employed in bioconjugation techniques for protein and peptide modifications.
Polymeric carbodiimide is much less sensitive to the presence of water and able to achieve long pot-life.

Due to the high reactivity, curing with CDI type crosslinkers can be done at room temperature and under typical oven conditions used for drying of applied coatings.
Used as anti-hydrolysis agent and antioxidant of compound polyurethane rubber, Polymeric carbodiimide can improve the stability of vulcanized rubber and delay the hydrolysis of rubber.

Polymeric carbodiimide is advisable to mix the rubber at a temperature higher than its softening point to improve its effectiveness.
Polymeric carbodiimide is primarily used as crosslinking agents in waterborne polyurethane and acrylic resin systems.
Polymeric carbodiimide reacts with carboxylic acid groups to form covalent bonds, enhancing the mechanical properties, chemical resistance, and durability of coatings and adhesives.

Polymeric carbodiimide is also utilized in the synthesis of polyureas and polyamides, serving as intermediates in various chemical reactions.
Polymeric carbodiimide is a functional group represented by -N=C=N- and compounds having carbodiimide groups are used in various applications thanks to their excellent reactivity.

For polyester and other general-purpose resins and biodegradable resins such as polylactic acid, hydrolysis is a big issue.
Polymeric carbodiimide compounds are known to have an effect of suppression by supplementing acid in the polymer which is a catalyst for decomposition reaction.

On the other hand, when adding conventional Polymeric carbodiimide compounds to polymers, melt-kneading them, or processing them by re-melting the polymers, isocyanate gas known as a substance with high irritation and sensitization is generated.

As a result, it is necessary to take measures against the work environment such as exhaust equipment of this gas, so Polymeric carbodiimide was sometimes refrained from use.
Polymeric carbodiimide is widely used in PU Sole liquid,synthetic leather slurry,biodegradable material (PLA,PBAT )and adhesive.

Polymeric carbodiimide is a versatile hydrolysis stabilizer that can be used in: Polyester hot-cast polyurethane, Polyester polyurethane adhesive, Polyester thermoplastic polyurethane (TPU), and Polyurethane sole system made from polyester polyols.
The recommended dosage of Polymeric carbodiimide is about 1.0–2.5% of the polyol component in the polyurethane system.

Preliminary tests should be carried out before use to obtain the best dosage.
When used, Polymeric carbodiimide is usually dissolved in polyester polyols or added to prepolymers with OH terminal groups.
For casting systems, Polymeric carbodiimide can be added directly to the mixing head.

Polymeric carbodiimide can also be used as an anti-hydrolysis stabilizer for polyester polyurethane systems, cast polyurethane systems (CPU), PET mesh, and thermoplastic polyester polyurethane (TPU).
The addition amount is about 1.0–4.0 parts by weight of Polymeric carbodiimide per 100 parts of the polyol component of the PU system.

In actual use of Polymeric carbodiimide, the drying screens made of plastic fibers required for papermaking machinery are very susceptible to hydrolysis reactions because they are usually used in aqueous media at around 100°C.
The PET monofilament fibers used in this application cannot fully meet the strict requirements for anti-hydrolysis stability.

If Polymeric carbodiimide is added to PET, this decomposition can be prevented, and the service life can be extended by three times compared to products without Stabaxol.
In addition to the cost savings from the filter itself, reduced downtime and filter replacement also significantly reduces operating costs.

In the footwear industry, PU elastomers and thermoplastic PU elastomers (TPU) have been very maturely applied as high-performance materials.
These materials are especially used in walking shoes, safety shoes, skis, and snow boots, which all require high hydrolysis resistance.
At the same time, Polymeric carbodiimide can effectively improve the hydrolysis stability of polyurethane adhesives.

For example, stabilized hot melt adhesives are used as glue for bonding soles, thereby reducing the risk of complaints caused by premature detachment of the outsole due to hydrolysis.
Other applications of Polymeric carbodiimide include adhesives for sealing strips, etc. Anti-hydrolysis stabilizer, Polymeric carbodiimide is used for PET, PBT, PA, TPU, EVA, and TPEE.

Polymeric carbodiimide is used as an anti-hydrolysis agent for compounding polyurethane rubber and thermoplastic polyester polyurethane (TPU).
Polymeric carbodiimide is also used for polyester polymers (PET, PBT, TPE), EVA, and PA during melt processing.

Polymeric carbodiimide is primarily used as an anti-hydrolysis agent in various polymer systems.
Polyester Polyurethanes: Polymeric carbodiimide enhances hydrolysis resistance in hot-cast systems and shoe-sole applications.
Thermoplastic Polyester Polyurethanes (TPU): Polymeric carbodiimide improves durability and stability under humid conditions.

Polyester Polyurethane Adhesives: Polymeric carbodiimide increases longevity and performance in moisture-exposed applications.
Polymeric carbodiimide's liquid form at room temperature facilitates easy incorporation into polyol components, pre-polymers with terminal OH groups, or directly into mixing heads in cast systems.

Polymeric carbodiimide can also be used as an anti-hydrolysis stabilizer for polyester polyurethane systems, cast polyurethane systems (CPU), PET mesh, and thermoplastic polyester polyurethane (TPU).
Polymeric carbodiimide is an effective antihydrolysis agent for polyester polyurethanes and thermoplastic polyester polyurethanes (TPU).

Polymeric carbodiimide is liquid at room temperature, which facilitates processing in polyurethanes.
Polymeric carbodiimide is water-miscible and can be processed easily in water-based systems, e.g. dispersion adhesives.
The solubility in common organic solvents enables a wide application range for Polymeric carbodiimide.

BENEFITS AND CHARACTERISTICS OF POLYMERIC CARBODIIMIDE:
*Enhanced Durability:
Polymeric carbodiimide improves mechanical properties and chemical resistance of materials.

*Versatility:
Polymeric carbodiimide is applicable in various industries including coatings, adhesives, and biomedical fields.

*Efficient Crosslinking:
Polymeric carbodiimide forms stable covalent bonds, leading to improved material performance.

FEATURES OF POLYMERIC CARBODIIMIDE:
As a kind of liquid polymerized anti-hydrolysis agent.
Polymeric carbodiimide has the characteristics of being easy to add,good compatibility with materials and easy to dissolve in water

ADVANTAGES OF POLYMERIC CARBODIIMIDE:
*Eco-friendly product, no harm in the application process and finished products;
*VOC-free, no gas released under standard application;

*Low cross-linking temperature and can be cured at room temperature
*Longer warehouse storage period;

*Longer pot life in mixture (recommended for pH>8 formulations);
*Significant improvement on water resistance;

*Significantly improvement on chemical/physical resistance, especially in the wear-resistance and adhesion of many substrates;
*Feasibility of mixing with other aqueous dispersions;

*High compatibility with polymer dispersions without reducing gloss;
*Non-yellowing.

BENEFITS AND CHARACTERISTICS OF POLYMERIC CARBODIIMIDE:
*Improved chemical resistance
*Enhanced mechanical strength
*Increased durability of coatings
*Effective crosslinking agent for waterborne systems
*Versatility in various industrial applications

SAFETY AND HANDLING OF POLYMERIC CARBODIIMIDE:
While specific safety data for polymeric carbodiimides may vary, general precautions should be taken when handling chemical substances:
Use appropriate personal protective equipment (PPE), including gloves and eye protection.

Ensure adequate ventilation in the working area.
Store in a cool, dry, and well-ventilated place, away from incompatible materials.
Dispose of in accordance with local, regional, and national regulations.

✅ BENEFITS AND CHARACTERISTICS OF POLYMERIC CARBODIIMIDE:
*Hydrolysis Resistance:
Polymeric carbodiimide is effectively prevents moisture-induced degradation in polymers.

*Thermal Stability:
Polymeric carbodiimide maintains performance at elevated processing temperatures.

*Compatibility:
Polymeric carbodiimide easily integrates into various polymer matrices without adversely affecting their properties.

*Formulation Flexibility:
Polymeric carbodiimide is available in liquid form for diverse processing needs.

INDUSTRIES OF POLYMERIC CARBODIIMIDE:
*Automotive and Transportation,
*Electrical and Electronics,
*Consumer Goods,
*Building and Construction

PRODUCT GROUPS OF POLYMERIC CARBODIIMIDE:
*Other Additives,
*Antioxidants and Stabilizers,
*Plastic and Rubber Additives

FUNCTION OF POLYMERIC CARBODIIMIDE:
*Antihydrolysis agent for polyester polyurethanes and thermoplastic polyester polyurethanes (TPU).

PHYSICAL and CHEMICAL PROPERTIES of POLYMERIC CARBODIIMIDE:
CAS Number: Not available
EC Number: Not available
Appearance: Colorless to pale yellow liquid
Physical State: Liquid
Odor: Slight
Solubility: Insoluble in water
Density: Not available
Melting Point: Not available
Boiling Point: Not available

Flash Point: Not available
Autoignition Temperature: Not available
Vapor Pressure: Not available
Partition Coefficient (n-octanol/water): Not available
Viscosity: Not available
pH: Not applicable
Molecular Formula: Not applicable
Molecular Weight: Not applicable

Chemical composition: Polymeric carbodiimide
Physical form: Viscous, bright yellow liquid
Density (25 °C): 1.10 g/cm³
Freezing point: < 5 °C
Viscosity (23 °C): 1,000 - 6,000 mPa·s
Solubility: Soluble in organic solvents e.g. acetone, dichloromethane
Solubility in water: Soluble
Carbodiimide-content: min. 6.0 %
Jodine colour number: max. 25

OH-value, theoretical: 13 mgKOH/g
Chemical Name: Polymeric carbodiimide
EC Number: Not publicly disclosed
Synonyms: Polymeric carbodiimide
Chemical Name: Polymeric carbodiimide
EC Number: Not publicly disclosed
Synonyms: Polymeric carbodiimide
Appearance: Viscous, bright yellow liquid

Density at 25 °C: Approximately 1.10 g/cm³
Freezing Point: Below 5 °C
Viscosity at 23 °C: 1000–6000 mPa·s
Carbodiimide Content: Minimum 6.0% by weight
Solubility: Soluble in organic solvents such as acetone and dichloromethane
Soluble in water
OH Value (Theoretical): Approximately 13 mg KOH/g
Iodine Color Number: Maximum 25

FIRST AID MEASURES of POLYMERIC CARBODIIMIDE:
-Description of first-aid measures:
*If inhaled:
After inhalation:
Fresh air.
*In case of skin contact:
Wash off with soap and plenty of water.
*In case of eye contact:
Remove contact lenses.
*If swallowed:
Never give anything by mouth to an unconscious person.
Rinse mouth with water.
-Indication of any immediate medical attention and special treatment needed:
No data available

ACCIDENTAL RELEASE MEASURES of POLYMERIC CARBODIIMIDE:
-Environmental precautions:
Do not let product enter drains.
-Methods and materials for containment and cleaning up:
Keep in suitable, closed containers for disposal.

FIRE FIGHTING MEASURES of POLYMERIC CARBODIIMIDE:
-Extinguishing media:
*Suitable extinguishing media:
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
-Further information:
No data available

EXPOSURE CONTROLS/PERSONAL PROTECTION of POLYMERIC CARBODIIMIDE:
-Control parameters:
--Ingredients with workplace control parameters:
-Exposure controls:
--Personal protective equipment:
*Eye/face protection:
Use equipment for eye protection.
*Skin protection:
Handle with gloves.
Wash and dry hands.
*Body Protection:
Impervious clothing
*Respiratory protection:
Respiratory protection not required.
-Control of environmental exposure:
Do not let product enter drains.

HANDLING and STORAGE of POLYMERIC CARBODIIMIDE:
-Conditions for safe storage, including any incompatibilities:
*Storage conditions:
Store in cool place.
Keep container tightly closed in a dry and well-ventilated place.
Containers which are opened must be carefully resealed and kept upright to prevent leakage.

STABILITY and REACTIVITY of POLYMERIC CARBODIIMIDE:
-Reactivity:
No data available
-Chemical stability:
Stable under recommended storage conditions.
-Possibility of hazardous reactions:
No data available
-Conditions to avoid:
No data available