HS-220 Polycarbodiimide Anti-Hydrolysis Agent for TPU

High Efficiency Anti-hydrolysis Agent HS-220 Hydrolysis Stabilizer is a novel solution designed to effectively prevent the degradation of mechanical properties in polyester-based polyurethanes, including TPU, adhesives, and shoe-sole systems. It functions by capping the active carboxyl-terminated ends of polyester molecules and repairing broken polymer chains through cross-linking with carboxyl groups. This mechanism extends product service life while maintaining high mechanical strength.

• High activity, reacts rapidly with carboxyl groups
• High purity without isocyanate residue
• Liquid formulation for easy incorporation
• Excellent durability for wide-ranging applications

HS-220 significantly enhances anti-hydrolysis resistance in polyester-based polyurethane systems including TPU, adhesives, and shoe-sole applications. It improves key properties such as:

• Tensile strength
• Elongation
• Melt viscosity
• Acid content

Recommended dosage is 0.5-2.0 phr, adjustable based on initial and desired final acid values.

• Storage: Maintain in original, unopened packaging in a cool, dry place. Shelf life of at least one year under proper conditions.
• Packaging: 25kg stacking barrels