EFFECT OF TENSION ON THE LIGHT STABILITY OF POLYPROPYLENE FILAMENT YARNS

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AHMADI Z.; HAGHIGHAT KISH M.

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Journal: Iranian Journal of Polymer Science and Technology Year:2002 | Volume:15 | Issue:3 (ISSUE NO.59) Page(s): 155-166

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Title

EFFECT OF TENSION ON THE LIGHT STABILITY OF POLYPROPYLENE FILAMENT YARNS

Author(s)

AHMADI Z. | HAGHIGHAT KISH M. | Issue Writer Certificate

Keywords

POLYPROPYLENEQ3

STABILITYQ3

FILAMENT YARNQ4

LIGHTQ4

DEGRADATIONQ3

Abstract

Samples of POLYPROPYLENE bulk continuous filament yams are exposed to the outdoor sunlight in Tehran and xenon radiation in a controlled condition in Xenotest apparatus, free of tension and under tension as well. The results of the measurements of mechanical properties indicate that after exposure to LIGHT the tenacity, breaking extension and the work of rupture of the filaments decrease and the imposed tension affects the reduction of the mechanical properties. Due to the exposure of samples to the natural and artificial LIGHT, the formation of -OH, -OOH, -CO and -COO groups are confirmed by infrared spectroscopy, iodometric technique and staining with methylene blue. The shrinkage of yams in boiling water does not show any change and the changes in the thermal characteristics determined by differential scanning calorimetry do not show a consistent trend. Prolong exposure to outdoor sunlight degraded the stabilized POLYPROPYLENE filaments. The effects of tension and LIGHT on the DEGRADATION processes are explained in terms of the current structural theories.

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APA: Copy

AHMADI, Z., & HAGHIGHAT KISH, M.. (2002). EFFECT OF TENSION ON THE LIGHT STABILITY OF POLYPROPYLENE FILAMENT YARNS. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), 15(3 (ISSUE NO.59)), 155-166. SID. https://sid.ir/paper/6305/en

Vancouver: Copy

AHMADI Z., HAGHIGHAT KISH M.. EFFECT OF TENSION ON THE LIGHT STABILITY OF POLYPROPYLENE FILAMENT YARNS. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN)[Internet]. 2002;15(3 (ISSUE NO.59)):155-166. Available from: https://sid.ir/paper/6305/en

IEEE: Copy

Z. AHMADI, and M. HAGHIGHAT KISH, “EFFECT OF TENSION ON THE LIGHT STABILITY OF POLYPROPYLENE FILAMENT YARNS,” IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), vol. 15, no. 3 (ISSUE NO.59), pp. 155–166, 2002, [Online]. Available: https://sid.ir/paper/6305/en

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