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Stabaxol I is very suitable for extrusion of monofilaments.
Stabaxol I acts as an anti-hydrolysis agent.
Stabaxol I has distinctly reduced content of volatile components for polyester polymers (PET, PBT, TPE), polyamide, thermoplastics polyester polyurethanes (TPU) and millable urethane rubber.
CAS Number: 2162-74-5
Molecular Formula: C25H34N2
Molecular Weight: 362.56
EINECS Number: 218-487-5
Synonyms: Bis(2,6-diisopropylphenyl)carbodiimide, Staboxol 1, Carbo D, YPK27Z98PL, DTXSID5051862, 2,2',6,6'-Tetraisopropyldiphenylcarbodiimide, EINECS 218-487-5, UNII-YPK27Z98PL, Carbodiimide, bis(2,6-diisopropylphenyl)-, N,N'-Methanetetraylbis(2,6-bis(1-methylethyl)benzenamine), Benzenamine, N,N'-methanetetraylbis(2,6-bis(1-methylethyl)-, BIS(2,6-DIISOPROPYLPHENYL)-CARBODIIMIDE, EC 218-487-5, Benzenamine, N,N'-methanetetraylbis[2,6-bis(1-methylethyl)-, DTXCID3030420, Carbodiimide, bis(2,6-diisopropylphenyl)-(7CI,8CI), 218-487-5, 2162-74-5, N,N'-Methanediylidenebis(2,6-diisopropylaniline), (2,6-diisopropylphenyl)carbodiimide, MFCD00082211, N,N'-bis[2,6-bis(propan-2-yl)phenyl]methanediimine, C25H34N2, Maybridge1_004202, SCHEMBL134760, HMS553G24, AKOS015915473, FB16104, bis(2,6-di-2-propylphenyl)carbodiimide, bis-(2,6-diisopropylphenyl)carbodiimide, AS-10072, SY035749, DB-119014, B2756, CS-0154311, NS00007917, EN300-256163, O12007, N,N/'-bis[2,6-di(propan-2-yl)phenyl]methanediimine, N,N'-bis[2,6-di(propan-2-yl)phenyl]methanediimine, Q27894368, N-{N-[2,6-bis(propan-2-yl)phenyl]carboximidoyl}-2,6-bis(propan-2-yl)aniline, RARECHEM AQ A4 0133;STABILIZER 7000 / 7000 F;Stabilizer 7000;N,N'-Bis(2,6-diisopropylphenyl)carbodiimide;Benzenamine, N,N-methanetetraylbis2,6-bis(1-methylethyl)-;(2,6-diisopropylphenyl)-[(2,6-diisopropylphenyl)iminomethylene]amine;N,N'-bis[2,6-di(propan-2-yl)phenyl]methanediimine;Bis(2,6-diisopropylphenyl)carbodiimide ,98%
Stabaxol I is a monomeric carbodiimide.
Its recommend dosage is 1.5 to 2.5 pbw for polyester, polyamide, and thermoplastic polyurethanes.
Stabaxol I is an active antihydrolysis agent for polyester polyurethanes produced by hot casting as well as for adhesives based on polyester polyurethane.
Stabaxol I is an active antihydrolysis agent for polyester polyurethanes produced by hot casting like e. g. PET, PBT, TPE, PLA, TPU and millable Urethane rubber.
Polymers with amide groups (PA) can be protected against hydrolysis with Stabaxol I, too.
Stabaxol I is very suitable for extrusion of monolaments.
Due to its powder form it can be handled easier than Stabaxol I or Stabaxol I LF.
Prior tests should always be carried out to determine the most suitable dosage, however.
To be most eective, Stabaxol I should be added to the polyester polyol during the warming-up period, starting at a minimum temperature of 50 °C (122 °F), to a maximum temperature of 120 °C (248 °F).
As Stabaxol I does not disperse readily (it may oat undissolved on the surface), it should be stirred intensively.
Stabaxol I may slightly accelerate the crosslinking reaction (polyester polyol/iscoyanate).
This can be counteracted by adding a very small amount of an organic acid (e.g. citric acid).
For adhesives we recommend to add 1-2 parts by weight Stabaxol I to 100 parts by weight adhesive.
Stabaxol I is monomeric carbodiimide.
Stabaxol I acts as an antihydrolysis agent for polyester-polyurethane elastomers produced by hot casting process.
Stabaxol I is normally being dissolved in the polyester polyol; alternatively, it may be added to the pre-polymer (only with terminal OH groups).
Stabaxol I is a monomeric carbodiimide compound used primarily as a hydrolysis stabilizer in polyester and polyurethane systems, which helps to prolong the service life of polymers by scavenging water and carboxylic acid end groups and converting them into non-degrading urea linkages .
In industrial formulations, Stabaxol I is especially valued for stabilizing polyester polyurethanes, such as PET, PBT, PLA, TPU, TPE, and millable urethane rubbers, where exposure to heat and moisture can otherwise degrade the materials rapidly.
Stabaxol I is normally being dissolved in the polyester polyol; alternatively, it may be added to the pre-polymer (only with terminal OHgroups).
An addition of 1 part by weight Stabaxol I to 100 parts by weight polyester polyol increases the resistance to hydrolysis up to 7 times.
This data was established by tests conducted at 80 % relative humidity.
Stabaxol I gives the best results when added in a concentration of up to 2 parts by weight to otherwise unprotected polyester polyurethane elastomers.
For adhesives we recommend to add 1-2 parts by weight Stabaxol I to 100 parts by weight adhesive.
Prior tests should always be carried out to determine the most suitable dosage, however.
To be most eective, Stabaxol I should be added to the polyester polyol during the warming-up period, starting at a minimum temperature of 50 °C (122 °F), to a maximum temperature of 120 °C (248 °F).
Melting point: 51 °C
Boiling point: 152-162 °C(Press: 0.05 Torr)
Density: 0.95±0.1 g/cm3(Predicted)
vapor pressure: 0.006Pa at 20℃
Flash point: 197℃
storage temp.: 2-8°C
form: powder to lump
color: White to Almost white
Water Solubility: 50μg/L at 20℃
InChIKey: XLDBGFGREOMWSL-UHFFFAOYSA-N
LogP: 6.2 at 30℃
Stabaxol I may slightly accelerate the crosslinking reaction (polyester polyol/iscoyanate).
Stabaxol I can be counteracted by adding a very small amount of an organic acid.
Stabaxol I has a shelf life of at least 1 year
Stabaxol I is an active anti-hydrolysis agent for polyester polyurethanes produced by hot castings like PET, PBT, TPE, PLA, TPU and millable urethane rubber.
It can protect polymers with amide groups against hydrolysis.
It is suitable for the extrusion of mono-filaments.
Stabaxol I has a shelf life of 24 months.
Because it comes in a powder form, Stabaxol I is relatively easy to handle and add uniformly compared to liquid variants, making it particularly suitable for hot-cast polyester-polyurethane adhesives and monofilament extrusion.
In hot-melt adhesives, for instance, only 1–2 parts by weight added to 100 parts adhesive are enough to dramatically enhance resistance to hydrolytic failure
Stabaxol I is a smart choice for manufacturers seeking a practical and efficient solution to combat hydrolytic degradation in polyesters, polyurethanes, and polyamides, ensuring enhanced longevity and performance of the finished products.
Stabaxol I is a monomeric carbodiimide compound, specifically engineered to serve as a potent hydrolysis stabilizer in materials that contain ester or amide linkages, such as polyester polyurethanes and polyamides.
The carbodiimide group within the molecule reacts selectively with carboxylic acid end groups and water molecules, converting them into stable urea linkages, which interrupts the chain of hydrolysis reactions and thus enhances the material’s long-term durability.
As Stabaxol I does not disperse readily (it may oat undissolved on the surface), it should be stirred intensively.
Stabaxol I may slightly accelerate the crosslinking reaction (polyester polyol/iscoyanate).
This can be counteracted by adding a very small amount of an organic acid (e.g. citric acid).
When incorporated during the warming phase of polymer processing—typically between 50 °C and 120 °C—it significantly reduces hydrolysis, resulting in a two- to sevenfold increase in material durability, depending on the dosage
Stabaxol I is effective in protecting polyamides (such as nylon) that contain amide groups susceptible to hydrolysis, offering similar gains in durability when processed under comparable temperature conditions.
By reacting with hydrolysis-generated acids, it forms stable urea compounds without negatively affecting the mechanical or thermal properties of the polymer .
When incorporated during the pre-assembly or melting stages of polymer processing—typically between 50 °C and 120 °C—Stabaxol I integrates evenly into the polymer matrix and initiates its protective chemistry before damaging reactions can begin.
Tests indicate that even at a low dosage of just 1 part by weight per 100 parts of polyester or polyurethane, Stabaxol I can deliver a marked improvement in resistance to moisture-induced degradation.
In hot-melt polyurethane adhesives—such as those used for shoe soles, seals, or automotive parts—the introduction of Stabaxol I markedly reduces hydrolysis-related failures, thereby extending the lifespan of bonded components.
Stabaxol I exhibits selective reactivity: instead of randomly crosslinking polymer chains, it reacts with hydrolysis byproducts (i.e., water and carboxylate groups), yielding non-degrading urea compounds that do not impair physical or thermal properties.
This translates into superior retention of mechanical integrity, minimization of discoloration, and extended service life in environments prone to heat and humidity.
Uses Of Stabaxol I:
Stabaxol I is widely used as a hydrolysis stabilizer in the production of polyester polyurethanes, where it plays a critical role in protecting the polymer chains from degradation caused by exposure to moisture and heat during processing and in-service conditions.
By scavenging water and acidic end groups, it effectively prevents the breakdown of ester bonds, thereby significantly extending the durability and mechanical performance of polyester-based materials used in applications such as adhesives, elastomers, and molded parts.
In hot-melt adhesives, Stabaxol I is incorporated to improve resistance to hydrolytic failure, ensuring that bonded components maintain their strength and flexibility over long periods, even under humid or wet conditions.
This is particularly important in industries like footwear, automotive, and construction, where adhesives must withstand challenging environmental stresses without losing adhesion or structural integrity.
Stabaxol I is also employed in the stabilization of thermoplastic polyesters such as polyethylene terephthalate (PET), polybutylene terephthalate (PBT), and polylactic acid (PLA).
These materials are prone to hydrolysis during melt processing and end-use exposure to moisture, and the addition of Stabaxol I helps to maintain their molecular weight, crystallinity, and tensile strength, which are crucial for applications like fibers, films, and packaging materials.
Stabaxol I finds use in polyurethane elastomers, where it enhances the resistance of the material to hydrolytic degradation, thus improving the longevity of products like seals, gaskets, and flexible tubing that must perform reliably under fluctuating humidity and temperature conditions.
Its ability to stabilize both thermoplastic and thermoset polyurethane systems makes it a versatile additive for a broad range of industrial polymer formulations.
Additionally, the stabilizer is beneficial in polyamide (nylon) applications, where it helps protect amide linkages from hydrolysis, which can cause embrittlement and loss of mechanical properties.
This protection is essential for producing durable textile fibers, automotive parts, and engineering plastics that retain their performance characteristics even after prolonged exposure to moisture.
Stabaxol I is chosen by manufacturers who require an effective, easy-to-use additive that significantly improves the hydrolytic stability of various polyester and polyurethane materials, enabling these polymers to maintain their desired properties and functionality in demanding environments over extended service lifetimes.
Stabaxol I is extensively utilized in the polymer industry as a crucial additive to enhance the longevity and performance of materials that are vulnerable to hydrolytic degradation, especially in polyester and polyurethane systems.
Its primary use is to improve the resistance of these polymers against the breakdown that occurs when water molecules attack the ester or urethane linkages within the polymer chain during processing or throughout the product’s service life, thereby preventing loss of mechanical strength, discoloration, and premature failure.
In the field of hot-melt adhesives, Stabaxol I is valued for its ability to maintain adhesive strength and flexibility by mitigating hydrolysis that could otherwise weaken the bonds over time.
This makes it indispensable in applications where adhesives are exposed to humid or moist environments, such as in the manufacture of footwear, automotive interior components, and construction materials, where durability and long-term reliability are paramount.
Stabaxol I is also applied in polyamide systems, including nylon fibers and engineering plastics, where it enhances resistance to moisture-induced degradation that can cause brittleness and loss of toughness.
Its use in these materials supports the production of long-lasting textiles, automotive parts, and technical components that perform reliably in demanding applications involving exposure to water or humid atmospheres.
Safety Profile Of Stabaxol I:
Stabaxol I, is considered hazardous due to its chemical properties and potential effects on health and the environment.
It is classified as corrosive, meaning it can cause severe damage to skin, eyes, and mucous membranes upon contact.
Direct exposure can result in burns, irritation, and inflammation, and inhalation of dust or fumes may irritate the respiratory tract, potentially causing coughing, difficulty breathing, or more serious respiratory issues with prolonged exposure.
Ingestion of Stabaxol I can be harmful or toxic, causing nausea, vomiting, abdominal pain, and systemic effects due to the release of tin ions in the body.
Chronic exposure may lead to more serious health problems, including effects on the liver and kidneys.
From a chemical standpoint, it is reactive with water and moisture, releasing hydrogen chloride gas, which is itself corrosive and can contribute to respiratory hazards if inhaled.
Stabaxol I is also sensitive to air and moisture, which means it can degrade or react, potentially producing hazardous fumes.
Stabaxol I a poison by ingestion,intraperitoneal, and inhalation.
When heated to decomposition it emits toxic vapors of NOx.
