Age-Life Prediction of Nylon 66 Parachute Materials. Part 2. Changes in the Chemical and Physical Properties of Materials on Aging
MATERIALS RESEARCH LABS ASCOT VALE (AUSTRALIA)
Pagination or Media Count:
Changes in the chemical properties of nylon 66 taffeta material and olive drab ripstop material on accelerated thermal aging are reported. The thermooxidative changes that occurred were used to measure rates and degree of polymer degradation. Relationships between tensile strength, molecular weight and other chemical changes were established and found to be applicable for in- service parachutes. The nylon 66 materials were also examined for photochemical degradation after outdoor exposure. No photoendering was found for the dyed material and the difference in the degradation rates was attributed to different stabilizers being used during fibre manufacture. This is an Australian Department of Defense document.