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Stress relaxation of oriented nylon 6 fibers

1979; Wiley; Volume: 24; Issue: 4 Linguagem: Inglês

10.1002/app.1979.070240405

1097-4628

Toshio Kunugi, Yukihiro Isobe, Katsumi Kimura, Yoshimasa Asanuma, Minoru Hashimoto,

Advanced Sensor and Energy Harvesting Materials

Journal of Applied Polymer ScienceVolume 24, Issue 4 p. 923-930 Article Stress relaxation of oriented nylon 6 fibers Toshio Kunugi, Toshio Kunugi Department of Applied Chemistry, Faculty of Engineering, Yamanashi University, Kofushi, 400 JapanSearch for more papers by this authorYukihiro Isobe, Yukihiro Isobe Department of Applied Chemistry, Faculty of Engineering, Yamanashi University, Kofushi, 400 JapanSearch for more papers by this authorKatsumi Kimura, Katsumi Kimura Department of Applied Chemistry, Faculty of Engineering, Yamanashi University, Kofushi, 400 JapanSearch for more papers by this authorYoshimasa Asanuma, Yoshimasa Asanuma Department of Applied Chemistry, Faculty of Engineering, Yamanashi University, Kofushi, 400 JapanSearch for more papers by this authorMinoru Hashimoto, Minoru Hashimoto Department of Applied Chemistry, Faculty of Engineering, Yamanashi University, Kofushi, 400 JapanSearch for more papers by this author Toshio Kunugi, Toshio Kunugi Department of Applied Chemistry, Faculty of Engineering, Yamanashi University, Kofushi, 400 JapanSearch for more papers by this authorYukihiro Isobe, Yukihiro Isobe Department of Applied Chemistry, Faculty of Engineering, Yamanashi University, Kofushi, 400 JapanSearch for more papers by this authorKatsumi Kimura, Katsumi Kimura Department of Applied Chemistry, Faculty of Engineering, Yamanashi University, Kofushi, 400 JapanSearch for more papers by this authorYoshimasa Asanuma, Yoshimasa Asanuma Department of Applied Chemistry, Faculty of Engineering, Yamanashi University, Kofushi, 400 JapanSearch for more papers by this authorMinoru Hashimoto, Minoru Hashimoto Department of Applied Chemistry, Faculty of Engineering, Yamanashi University, Kofushi, 400 JapanSearch for more papers by this author First published: 15 August 1979 https://doi.org/10.1002/app.1979.070240405Citations: 8AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat Abstract The stress relaxation of oriented and dried nylon 6 fibers was measured at temperatures ranging from room temperature to 423 K using a simple tensile method. After the reduction for temperature and crystallinity by Nagamatsu et al.'s procedure,2 the relaxation modulus curves were shifted along a time axis, and master curves were obtained. The Arrhenius plots of shift factor was represented by two straight lines having a break point, the temperature of which was in approximate agreement with those of the breakdown of hydrogen bonds in the amorphous region. The relationship between the breakdown of hydrogen bonds and the values of apparent activation energies for relaxation is discussed. It was found that the effects of hydrogen bonds on the relaxation behavior are similar to those of crosslinking points in crosslinked polymers. Moreover, from the constants C1 and C2 of the WLF equation, the free volume fraction at Tg(fg) and the expansion coefficient of free volume at Tg(fg) were estimated to be 0.013 and 4.2 × 10−5, respectively. Finally, through the use of the usual primary approximation method, the relaxation time spectra were obtained from the relaxation master curves. The obtained spectra showed two distributions of wedge type and box type. When the draw ratio increases, the height of distribution of the box type becomes higher and its position shifts to a longer time side, whereas those of the wedge type remain virtually unchanged. References 1 E. Catsiff, J. Offenbach, and A. V. Tobolsky, J. Colloid Sci., 11, 48 (1956). 2 K. Nagamatsu, T. Takemura, T. Yoshitomi, and T. Takemoto, J. Polym. Sci., 33, 515 (1958). 3 S. Onogi, K. Sasaguri, and T. Adachi, J. Polym. Sci., 58, 1 (1962). 4 K. Fujino, H. Kawai, T. Horino, and K. Miyamoto, Text. Res. J., 26, 852 (1956). 5 T. Yoshitomi and K. Nagamatsu, J. Polym. Sci., 27, 355 (1958). 6 N. Tokita, J. Polym. Sci., 20, 515 (1956). 7 M. Hashimoto and T. Kunugi, Kogyo Kagaku Zasshi, 73, 1499 (1970). 8 M. Hashimoto, T. Kunugi, N. Otagiri, and S. Shindo, Kogyo Kagaku Zasshi, 74, 1431 (1971). 9 M. Hashimoto, T. Kunugi, N. Otagiri, ad K. Amemiya, Nippon Kagaku Kaishi, 454 (1972). 10 H. A. Stuart, Die Physik der Hoch-Polymeren, Vol. 4, Springer, 1953, p. 6380. 11 T. Kunugi, K. Amemiya, and M. Hashimoto, Nippon Kagaku Kaishi, 1010 (1973). 12 K. Hoashi and R. D. Andrews, J. Polym. Sci. C, 38, 387 (1972). 13 M. Takayanagi, Proceedings of the Fourth International Congress on Rheology, Part 1, Interscience, New York, 1965, p. 161. 14 M. Kitoh, Y. Miyano, and K. Suzuki, Kobunshi Ronbunshu, 32, 55 (1975). 15 M. Kodama, Kobunshi Ronbunshu, 32, 13 (1975). 16 M. Kitoh and K. Suzuki, Kobunshi Ronbunshu, 32, 147 (1975). 17 K. Shibayama and Y. Suzuki, J. Polym. Sci. A, 3, 2637 (1965). 18 M. L. Williams, R. F. Landel, and J. D. Ferry, J. Am. Chem. Soc., 77, 3701 (1955). 19 J. D. Ferry, Viscoelastic Properties of Polymers, Wiley, New York, 1970, p. 318. 20 A. B. Thompson and D. W. Woods, Trans. Faraday Soc., 52, 1383 (1956). 21 M. Takayanagi, M. Yoshino, and Y. Saeki, Zairyo Shiken, 8, 308 (1959). 22 M. Kitoh and K. Suzuki, Kobunshi Ronbunshu, 33, 19 (1976). 23 P. E. Rouse, J. Chem. Phys., 21, 1272 (1953). Citing Literature Volume24, Issue415 August 1979Pages 923-930 ReferencesRelatedInformation