2-Ethyl-4-Methylimidazole (2E4MZ) Epoxy Accelerator/Co-Curing Agent

CAS 931-36-2

In Stock

MOQ

50 kg

Lead Time

7–14 days

Packaging

25 kg PE-lined drums

Specifications

Purity≥97.0%
Flash Point121°C
Boiling Point295°C at 760 mmHg
Melting Point39–45°C
Viscosity (50°C)30–80 mPa·s
Active Hydrogen Equivalent Weight110 g/eq

FAQ

2E4MZ is used at 0.5–2 phr per 100 phr DGEBA when combined with 4–6 phr DICY. At 1 phr 2E4MZ + 5 phr DICY, gel time at 150°C is typically 90–150 seconds (B-stage at 100°C >60 min, providing good processing window). Increasing to 2 phr 2E4MZ halves gel time to 45–75 seconds at 150°C, suitable for rapid-cure PCB multilayer pressing. For powder coatings, 1 phr 2E4MZ + 4 phr DICY achieves full mechanical properties after 180°C/10 min bake.

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