Slow crack growth was measured in three polyethylene copolymers by a notch tensile test at 50°C in Igepal Co-630. The concentration of Igepal was varied from 0 to 100%. The largest reduction in time to failure occurred in the concentration range between 0% and 0.1%. From 0.1 to 20% concentration, the additional effect was much less. A minimum in time to failure occurred at ~ 50% concentration. There is a significant increase in failure time when the concentration is increased from 50 to 100%. If the failure time is < 103 min in air, Igepal has practically no effect
Посилання на статтю:
The effect of concentration of an environmental stress cracking agent on slow crack growth in polyethylenes / R. Qian, X. Lu and N. Brown // Polymer. – 1993. – Vol 34. – P. 4727-4731.