PAI examples of flexural strength retention versus temperature C

For long-term heat ageing, property retention depends on the property and grades considered, notably the heat stabilizers used. Impact strength and elongation at break are especially heat-sensitive characteristics. 

The behaviour at low temperatures is good, depending on the grades and the mechanical constraints experienced. 

Generally, polyamide-imide is usable down to -196°C and displays medium notched Izod impact strengths, which slowly decrease down to -50°C retaining, for example, 60% of the original value. 

These results relate to some grades only and cannot be generalized. 

The mechanical properties are good with medium to low elongations at break and more limited strains at yield. Moduli and hardnesses are in a high range and notched impact strengths are in a medium range. 

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Figure 4.113. PAI examples of flexural strength retention (%) versus temperature (°C)...

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