Chemical Resistance
Nylon-MXD6 dissolves in strong acids like concentrated sulfuric acid and formic acid. It also dissolves in phenols like met cresol. However, it is quite stable against many other chemicals.
Table 4 shows the chemical resistance of injection molded products of Nylon-MXD6 (Note: dumb-bell specimen).
Table 4 Chemical resistance of Nylon-MXD6
| Chemicals | Weight Change(%) | Retained Tensile Strength (%) |
|---|---|---|
| Water | 0.7 | 87 |
| Methanol | 1.4 | 87 |
| 8% Ethanol | 0.6 | 93 |
| 50% Ethanol | 0.9 | 87 |
| n-Butanol | 0.0 | 99 |
| 37% Formaldehyde | 0.4 | 82 |
| n-Heptane | 0.1 | 98 |
| 30% Acetic Acid | 0.7 | 89 |
| 30% Sulfuric Acid | 0.9 | 92 |
| 10% Hydrochloric Acid | 0.8 | 88 |
| 10% Nitric Acid | 0.8 | 85 |
| 10% Aqueous ammonia | 0.7 | 87 |
Immersed for 7 days at 20℃.
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