Circular deformation as a means of simultaneously evaluating the compressive and tensile strain in vulcanized rubber

Sung-Seen Choi; Joong Hee Jang; Seong Beom Lee; Wang Jin Jang; Jeong Seok Oh; Seong-Hoon Lee

Journal of Industrial and Engineering Chemistry, Vol.15, No.5, 641-644, September, 2009

DOI10.1016/j.jiec.2009.09.035 Export Citation

Circular deformation as a means of simultaneously evaluating the compressive and tensile strain in vulcanized rubber

Sung-Seen Choi^†, Joong Hee Jang, Seong Beom Lee¹, Wang Jin Jang¹, Jeong Seok Oh², and Seong-Hoon Lee²

Department of Chemistry, Sejong University, 98 Gunja-dong, Gwangjin-gu, Seoul 143-747, Republic of Korea
¹High Safety Vehicle Core Technology Research Center, School of Mechanical and Automotive Engineering, Inje University, Gimhae, Gyeongsangnamdo 621-749, Republic of Korea
²Polymeric Materials Research Team, Advanced Technology Center, R & D Division, Hyundai-Kia Motors, 772-1 Jangduk-dong, Hwaseong-si, Kyenggi-do 455-706, Republic of Korea

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The recovery behavior of vulcanized rubber composed of a chloroprene rubber (CR) and natural rubber (NR) blend was investigated using a circular deformation technique. A linear sample of vulcanized rubber was circularly deformed and thermally aged. The tensile and compressive strains, and stress distributions, in the circularly deformed state were evaluated using finite element analysis (FEA). The stress and strain varied uniformly across the thickness of the sample, and the degree of recovery increased with the measurement time after the removal of deformation and decreased by increasing the thermal aging time. Instantaneous recoveries were obtained by extrapolation of the degree of recovery as a function of aging time. The crosslink density in the compressed interior of the sample was greater than that of the elongated exterior component.

Keywords:Circular deformation;FEA;Recovery;Vulcanized rubber;Thermal aging;Crosslink density

[References]

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Choi SS, Korea Polym. J., 7(2), 108 (1999)
Choi SS, J. Appl. Polym. Sci., 75(11), 1378 (2000)
Choi SS, Polym. Int., 50, 107 (2001)
Choi SS, Han DH, Ko SW, Lee HS, Bull. Kor. Chem. Soc., 26, 1853 (2005)
Choi SS, Ha SH, Woo CS, Bull. Kor. Chem. Soc., 27, 429 (2006)
Chen CH, Koenig JL, Shelton JR, Collins EA, Rubber Chem. Technol., 54, 734 (1981)
Choi SS, Korea Polym. J., 5(1), 39 (1997)
Layer RW, Rubber Chem. Technol., 65, 211 (1992)
Erman B, Mark JE, Annu. Rev. Phys. Chem., 40, 351 (1989)
Moczo J, Pukanszky B, J. Ind. Eng. Chem., 14(5), 535 (2008)
Choi SS, Lee HM, Ko JE, Kim MC, J. Ind. Eng. Chem., 13(7), 1169 (2007)
Fulin C, Lan C, Caihong L, Polym. Compd., 28, 667 (2007)
Sae-Oui P, Sirisinha C, Wantana T, Hatthapanit K, J. Appl. Polym. Sci., 104(5), 3478 (2007)
Ramesan MT, Alex R, Khanh NV, React. Funct. Polym., 62, 41 (2005)
Kuriakose AP, Varghese M, J. Appl. Polym. Sci., 90(14), 4084 (2003)
Choi SS, J. Appl. Polym. Sci., 83(12), 2609 (2002)
Ismail H, Leong HC, Polym. Test., 20, 509 (2001)
Morrison NJ, Porter M, Rubber Chem. Technol., 57, 63 (1984)
Choi SS, Polym. Test., 21, 741 (2002)
Choi SS, Korea Polym. J., 7(5), 317 (1999)

[Referenced By]

[1] Choi SS, Bull. Kor. Chem. Soc., 21, 628 (2000)

[2] Choi SS, Korea Polym. J., 7(2), 108 (1999)

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

[4] Choi SS, Polym. Int., 50, 107 (2001)

[5] Choi SS, Han DH, Ko SW, Lee HS, Bull. Kor. Chem. Soc., 26, 1853 (2005)

[6] Choi SS, Ha SH, Woo CS, Bull. Kor. Chem. Soc., 27, 429 (2006)

[7] Chen CH, Koenig JL, Shelton JR, Collins EA, Rubber Chem. Technol., 54, 734 (1981)

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

[9] Layer RW, Rubber Chem. Technol., 65, 211 (1992)

[10] Erman B, Mark JE, Annu. Rev. Phys. Chem., 40, 351 (1989)

[11] Moczo J, Pukanszky B, J. Ind. Eng. Chem., 14(5), 535 (2008)

[12] Choi SS, Lee HM, Ko JE, Kim MC, J. Ind. Eng. Chem., 13(7), 1169 (2007)

[13] Fulin C, Lan C, Caihong L, Polym. Compd., 28, 667 (2007)

[14] Sae-Oui P, Sirisinha C, Wantana T, Hatthapanit K, J. Appl. Polym. Sci., 104(5), 3478 (2007)

[15] Ramesan MT, Alex R, Khanh NV, React. Funct. Polym., 62, 41 (2005)

[16] Kuriakose AP, Varghese M, J. Appl. Polym. Sci., 90(14), 4084 (2003)

[17] Choi SS, J. Appl. Polym. Sci., 83(12), 2609 (2002)

[18] Ismail H, Leong HC, Polym. Test., 20, 509 (2001)

[19] Morrison NJ, Porter M, Rubber Chem. Technol., 57, 63 (1984)

[20] Choi SS, Polym. Test., 21, 741 (2002)

[21] Choi SS, Korea Polym. J., 7(5), 317 (1999)