Effects of Moisture Absorption

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Physical Properties

Effects of Temperature

Effects of Moisture Absorption

Effects of Temperature and Moisture

Equilibrium Moisture Content of PA's (Nylons) at Various Rel. Humidities

Creep Time Limits and Yield Stress

  Figure 1

Comparison to Nylon 6

Chemical Resistance

Suggestions for Machining Power-Core

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Figure 2

Typical Dimensional Change of Polyamids vs. Moisture Content

Physical Properties

Figure 3 demonstrates PA12G's superior tensile strength characteristics. Since PA12G's moisture absorption is max. 1.4 %, the drop in tensile strength is very small. Conversely, the tensile strength of nylon 6 and 6.6 drops significantly with increasing moisture content. In the case of nylon 6, the drop in tensile strength from dry (100 %) to the saturated state is over 80 %. For nylon 6.6, the drop is over 60 %. With increased moisture content, modulus of elasticity and other stiffness properties are also reduced.


Moisture Absorption vs. Tensile Strength

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