Chemical Additives

​Isophorone Diisocyanate (IPDI)

Chemical Formula: C₁₂H₁₈N₂O₂
Classification: Diisocyanate with two reactive ​isocyanate groups (-N=C=O).
Physical Form: Colorless to pale yellow liquid; derived from ​isophorone (cyclic ketone).
Key Features: UV-resistant, non-yellowing, and stable under harsh conditions.

​Properties

• ​Reactivity:
  • Reacts vigorously with ​active hydrogen-containing compounds (e.g., alcohols, amines).
• ​Stability:
  • Resistant to ​UV light and weathering; ideal for outdoor use.
• ​Solubility:
  • Soluble in organic solvents; reacts with water.

​Applications

1. ​Polyurethane Production:
   • Key raw material for ​polyurethane coatings, adhesives, and elastomers.
2. ​Coatings:
   • Enhances durability and flexibility in ​automotive, industrial, and wood coatings.
3. ​Adhesives & Sealants:
   • Improves performance in ​high-strength adhesives and sealants.
4. ​Specialty Polymers:
   • Used in ​light-stable, weather-resistant polymers (e.g., aerospace materials).

​Safety Considerations

• ​Toxicity: Toxic and a ​respiratory irritant.
• ​Handling: Requires ​proper ventilation, gloves, and protective equipment.

Summary:
IPDI’s ​reactivity, stability, and UV resistance make it indispensable in polyurethanes, coatings, and adhesives. Despite its industrial value, strict ​safety protocols are essential due to its toxicity.