Bio-SAH 342 Liquid is a high-performance liquid polycarbodiimide hydrolysis stabilizer developed for moisture-sensitive polymer systems, especially polyurethane and biodegradable polyesters. Compared with traditional solid stabilizers, its liquid form offers superior ease of handling, faster dispersion, and better compatibility with liquid or solution-based systems. It is particularly suitable for applications requiring uniform distribution and efficient processing.
Polyurethane materials and biodegradable polymers such as PBAT and PLA are prone to hydrolytic degradation due to ester linkages in their molecular structure. Under conditions of humidity, heat, or long-term environmental exposure, these materials can suffer from molecular weight reduction, mechanical property loss, and surface degradation. Bio-SAH 342 Liquid effectively addresses these challenges by providing long-term hydrolysis protection.
Appearance: Light yellow transparent liquid
CAS No.: 197098-60-5
Chemical Type: Liquid polycarbodiimide
Solubility: Water-soluble
Liquid form for easy dosing and processing
Excellent compatibility with polyurethane and polyester systems
Water-soluble, suitable for aqueous formulations
Efficient hydrolysis stabilization via carbodiimide chemistry
Improves durability and mechanical performance retention
Suitable for both solvent-based and water-based systems
Bio-SAH 342 Liquid is widely used in:
Polyurethane synthetic leather slurry systems
PU elastomers and shoe sole formulations
Waterborne and solvent-based adhesives
Biodegradable materials such as PBAT and PLA
Coatings and flexible polymer systems exposed to humidity
Bio-SAH 342 Liquid contains reactive carbodiimide functional groups that selectively react with carboxylic acid end groups formed during hydrolysis. This reaction generates stable N-acylurea structures, effectively blocking the autocatalytic degradation process. As a result, polymer chain scission is significantly reduced, and long-term stability is enhanced even under harsh environmental conditions.
Recommended dosage: 0.5% – 2.0% depending on formulation and performance requirements
Can be added directly into liquid systems or during compounding
Suitable for mixing, coating, casting, or reactive processing systems
Store in a cool, dry, and well-ventilated environment. Avoid prolonged exposure to moisture and air. Keep container tightly sealed after use. Follow standard safety procedures during handling.
