AbstractThe stress relaxations of unoriented nylons 4, 6, 11, 12, 66, 610, 612, and 666 were measured and compared over a temperature range from 25 to 180°C. Samples were tested after conditioning to 0, 50, and 100 relative humidity. The effect of crystallinity was indicated by the use of annealed samples prepared at 0 relative humidity
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