4,4-Diaminodicyclohexylmethane (PACM)
1. Technical Specifications & Performance Metrics
Purity: ≥99.0%
High purity ensures minimal impurities in downstream reactions, reducing side products in polyurea coating curing.
2. Key Advantages
For Polyurea High-Temperature Coatings:
Exceptional thermal endurance (TGA shows 5% weight loss at 320°C) – outperforms aromatic diamines by 80°C. This extends coating lifespan in industrial ovens or engine compartments.
Low color number (APHA ≤30) –ments.
Low color number (APHA ≤30) – maintains coating transparency, ideal for decorative high-heat surfaces.
For Transparent Nylon:
Amine value stability ensures consistent polymerization kinetics, reducing batch-to-batch viscosity variations in nylon melts.
Cycloaliphatic structure minimizes light absorption, resulting in nylon with >85% light transmittance
For Epoxy Curing Agents:
Long pot life (6-8 hours at 25°C with standard epoxy) – improves workability for large-scale coating projects.
High crosslink density post-curing (glass transition temperature ≥120°C) – enhances chemical resistance against solvents and acids.
