Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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| Property | Value |
|---|---|
| Uncured Properties | |
| Thixotropic Index (0.5/5 rpm) | 4.7 |
| Viscosity @ 25°C (5 rpm) | 7,500 mPa·s (cP) |
| Work Life @ 25°C | 24 hours |
| Shelf Life @ -40°C | 1 year |
| Curing Performance | |
| Snap Cure Schedule (7 Zones) | 150°C → 220°C (60s) |
| Oven Cure | 175°C (30 min ramp + 15 min hold) |
| Cured Properties | |
| CTE Below Tg | 46 ppm/°C |
| CTE Above Tg | 160 ppm/°C |
| Glass Transition Temperature (Tg) | 187°C (Tan Δ) / 108°C (TMA) |
| Thermal Conductivity | >4 W/(m·K) |
| Tensile Modulus @ 25°C | 9,600 N/mm² (1,395,000 psi) |
| Weight Loss on Cure | 1.5% |
| Extractable Ionic Content (Cl-, Na+, K+) | <10 ppm each |
| Weight Loss @ 300°C | 0.32% |
| Volume Resistivity | 0.00008 Ω·cm |
| Performance Properties | |
| Die Shear Strength @ 270°C | 16.3 – 16.8 kg-f/die |
| Die Shear Strength @ 25°C | 11 kg-f/die |
| Chip Warpage (Post Mold Bake @ 175°C) | 15.3 µm |
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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