Nadic Methyl Anhydride (NMA) Epoxy Curing Agent
CAS 25134-21-8
In StockMOQ
200 kg
Lead Time
10–15 days
Packaging
200 kg steel drums
Specifications
| Acid Value | ≤2.0 mg KOH/g |
| Color (APHA) | ≤50 |
| Boiling Point | 160°C at 10 mmHg |
| Viscosity (25°C) | 300–800 mPa·s |
| Anhydride Equivalent Weight | 178–185 g/eq |
| Tg (with DGEBA, fully cured) | 180–200°C |
FAQ
The bicyclic norbornene-derived ring structure of NMA produces crosslinked networks with significantly higher Tg (180–200°C vs 110–130°C for MeTHPA/DGEBA) due to the rigid bridged-ring contribution to backbone stiffness. NMA is the benchmark curing agent for filament-wound pressure vessels and glass/carbon fabric laminates requiring 180°C+ service temperature. Its higher AEW means slightly more anhydride by weight vs MeTHPA, but the Tg gain justifies the cost premium in aerospace and power-generation applications.
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