Table 3. Water Absorption of Polyamide with Respect to Amide Concentration
Polyamide
H
2
O Absorption, 24 hr (ASTM D570, %)
% Amide
Polyamide 6
1.3~1.9
38
Polyamide 66
1.0~1.3
38
Polyamide 69
0.5
32
Polyamide 612
0.4
28
Polyamide 12
0.25~0.3
22