Influence of specimen directions on recovery behaviors from circular deformation of polyester cord-inserted rubber composites

Sung-Seen Choi; Ok-Bae Kim

Journal of Industrial and Engineering Chemistry, Vol.20, No.1, 202-207, January, 2014

DOI10.1016/j.jiec.2013.04.006 Export Citation

Influence of specimen directions on recovery behaviors from circular deformation of polyester cord-inserted rubber composites

Sung-Seen Choi^†, and Ok-Bae Kim

Department of Chemistry and Sejong Polymer Research Center, Sejong University, 98 Gunja-dong, Gwangjin-gu, Seoul 143-747, Republic of Korea

E-mail:

Polyester cord-inserted rubber composites cut with the parallel and perpendicular directions to the fabric cord (RC∥FC and RCㅗFC specimens, respectively) were thermally aged and the recovery behaviors from a circular deformation were investigated. The permanent deformation of the RCjjFC specimen was more severe than that of the RCㅗFC specimen. Recoveries of the rubber composites without fabric cord were nearly the same irrespective of the cutting directions. Sources to cause the permanent deformation were found to be the increased crystalline region of polyester cord and the increased crosslink density of rubber part.

Keywords:Recovery;Polyester cord-inserted rubber composite;Thermal aging;Crystallinity;Crosslink density

[References]

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[2] Mani NK, Berzins MA, Turner JL, Tire Science and Technology., 37, 279 (2009)

[3] Choi SS, J. Appl. Polym. Sci., 75(11), 1378 (2000)

[4] Choi SS, Kim OB, J. Ind. Eng. Chem., 19(2), 650 (2013)

[5] Iyengar R, Rubber World., 197(2), 24 (1987)

[6] Cembrola RJ, Dudek TJ, Rubber Chemistry and Technology., 58, 830 (1985)

[7] Patel HP, Turner JL, Walter JD, Rubber Chemistry and Technology., 49, 1095 (1976)

[8] Hamed GR, Song JH, Tire Science and Technology., 10, 3 (1982)

[9] Hamed GR, Song JH, Rubber Chemistry and Technology., 58, 407 (1985)

[10] Henning J, Rubber Chemistry and Technology., 39, 678 (1966)

[11] Chasset R, Thirion P, Rubber Chemistry and Technology., 35, 317 (1962)

[12] Hamed GR, Huang MY, Rubber Chemistry and Technology., 71, 846 (1998)

[13] Hamed GR, Park BH, Rubber Chemistry and Technology., 72, 946 (1999)

[14] Choi SS, Polymer Testing., 21, 741 (2002)

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[19] Choi SS, Jang JH, Lee SB, Jang WJ, Oh JS, Lee SH, J. Ind. Eng. Chem., 15(5), 641 (2009)

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[24] Choi SS, Ha SH, Woo CS, Bulletin of the Korean Chemical Society., 27, 429 (2006)

[25] Krejsa MR, Koenig JL, Rubber Chemistry and Technology., 66, 376 (1993)

[26] Choi SS, Korea Polym. J., 5(1), 39 (1997)

[27] Choi SS, Kim IS, Woo CS, J. Appl. Polym. Sci., 106(4), 2753 (2007)

[28] Chen CH, Koenig JL, Shelton JR, Collins EA, Rubber Chemistry and Technology., 54, 734 (1981)

[29] Ding R, Leonov AI, Coran AY, Rubber Chemistry and Technology., 69, 81 (1996)

[30] Chough SH, Chang DH, J. Appl. Polym. Sci., 61(3), 449 (1996)