THE EFFECT OF CONCENTRATION OF AN ENVIRONMENTAL-STRESS CRACKING AGENT ON SLOW CRACK-GROWTH IN POLYETHYLENES

POLYMER

卷:34

Article

QIAN, R ; LU, X ; BROWN, N

关键词: POLYETHYLENE;    SLOW CRACK GROWTH;    CONCENTRATION;   

DOI  :  10.1016/0032-3861(93)90708-I

来源: Elsevier

【 摘 要 】

Slow crack growth was measured in three polyethylene copolymers by a notch tensile test at 50-degrees-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 approximately 50% concentration. There is a significant increase in failure time when the concentration is increased from 50 to 100%. If the failure time is < 10(3) min in air, Igepal has practically no effect.

【 授权许可】

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