Semi-aromatic PA moisture absorption versus RH

These results relate to a few grades only and cannot be generalized. 

Creep is rather low or very low, the more so as semi-aromatic polyamides are very often reinforced with high glass fibre contents. It changes moderately when the temperature rises. 

The dynamic fatigue can be good for well-adapted grades if care is taken to limit the strains by restricting the stresses to values in keeping with the modulus. 

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Figure 4.66. Semi-aromatic PA moisture absorption (%) versus RH (%)...

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