Mechanical Properties of Unaged, Air-, and Oil-Aged ACM/ENR Blends

Chan Young Park; Sang Bo Park; Seong Kee Min

Journal of Industrial and Engineering Chemistry, Vol.6, No.6, 419-424, November, 2000

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Mechanical Properties of Unaged, Air-, and Oil-Aged ACM/ENR Blends

Chan Young Park^†, Sang Bo Park, and Seong Kee Min

Division of Chemical Engineering, Pukyong National University, Pusan 628-739, Korea

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The blending of acrylic rubber (ACM) with epoxidized natural rubber (ENR)-50 was carried out on an open 2-roll mill following the conventional polymer blend method, then other ingredients were added. Vulcanized sheets were prepared using a hot press, then the mechanical properties of the unaged vulcanizates and those of the air- and oil-aged ones were measured. The hardness of the vulcanizates was probably increased due to the post cure during the aging test. With the immersion of the rubber specimens in hot oil, the hardness was decreased followed by a swelling of the rubber matrix with oil penetration into the rubber molecules. Presumably, the elongation was also decreased with heat aging owing to the elevation of the hardness through the post cure.

Keywords:Epoxidized Natural Rubber;Open 2-Roll Mill;Vulcanizate;Oil Penetration;Post Cure

[References]

Brydson JA, Plast. Mater., 4th End., p. 243, Butterworth Scientific, London (1982)
Greco R, Mancerella C, Martuscelli E, Ragosta E, Polym. Eng. Sci., 28, 1922 (1987)
Krause S, Polymer-polymer compatibility, in Polymer Blends, vol. 1, D.R. Paul and S. Newman Eds., Academic Press, New York (1978)
Iriate M, Espi E, Etxeberria A, Valero M, Fernandez-Berridi MJ, Iruin JJ, Macromolecules, 24, 5546 (1991)
Defieuw G, Groeninkx G, Reynaers H, Polymer, 30, 2164 (1989)
McDonel ET, Baranwal KC, Andries JC, Polymer Blend, D.R. Paul and S. Newman Eds., vol. 2, ch. 19, Academic Press, New York (1978)
Corish PJ, Rubber Chem. Technol., 40, 324 (1967)
Witnauer LP, Swern D, J. Am. Chem. Soc., 72, 3364 (1950)
Parker RE, Isaacs NS, Chem. Rev., 59, 737 (1959)
Baker CSL, Gelling IR, Newell R, Rubber Chem. Technol., 58, 67 (1985)
Loh PC, See TMS, Proc. Int. Rubber Conf., Kuala Lumpur, 312 (1985)
ASTM Designation, D-2084-76T (1972)
ASTM Designation, D-573-55T (1968)
ASTM Designation, D-412-66T (1967)
Hess WM, Vegvari PC, Swor RA, Rubber Chem. Technol., 58, 351 (1985)
Roberts AD, Natural Rubber Science and Engineering, Oxford University Press, Oxford (1988)
Mondragon I, Nazabal J, Polym. Eng. Sci., 25, 178 (1985)
Rochette JB, Vergnaud JM, J. Polym. Eng., 19, 303 (1990)
Accetta A, Vergnaud JM, Rubber Chem. Technol., 56, 689 (1983)
Setua DK, De SK, Rubber Chem. Technol., 56, 808 (1983)
Kang CK, Kim BK, Polym.(Korea), 15(4), 459 (1991)

[Referenced By]

[1] Brydson JA, Plast. Mater., 4th End., p. 243, Butterworth Scientific, London (1982)

[2] Greco R, Mancerella C, Martuscelli E, Ragosta E, Polym. Eng. Sci., 28, 1922 (1987)

[3] Krause S, Polymer-polymer compatibility, in Polymer Blends, vol. 1, D.R. Paul and S. Newman Eds., Academic Press, New York (1978)

[4] Iriate M, Espi E, Etxeberria A, Valero M, Fernandez-Berridi MJ, Iruin JJ, Macromolecules, 24, 5546 (1991)

[5] Defieuw G, Groeninkx G, Reynaers H, Polymer, 30, 2164 (1989)

[6] McDonel ET, Baranwal KC, Andries JC, Polymer Blend, D.R. Paul and S. Newman Eds., vol. 2, ch. 19, Academic Press, New York (1978)

[7] Corish PJ, Rubber Chem. Technol., 40, 324 (1967)

[8] Witnauer LP, Swern D, J. Am. Chem. Soc., 72, 3364 (1950)

[9] Parker RE, Isaacs NS, Chem. Rev., 59, 737 (1959)

[10] Baker CSL, Gelling IR, Newell R, Rubber Chem. Technol., 58, 67 (1985)

[11] Loh PC, See TMS, Proc. Int. Rubber Conf., Kuala Lumpur, 312 (1985)

[12] ASTM Designation, D-2084-76T (1972)

[13] ASTM Designation, D-573-55T (1968)

[14] ASTM Designation, D-412-66T (1967)

[15] Hess WM, Vegvari PC, Swor RA, Rubber Chem. Technol., 58, 351 (1985)

[16] Roberts AD, Natural Rubber Science and Engineering, Oxford University Press, Oxford (1988)

[17] Mondragon I, Nazabal J, Polym. Eng. Sci., 25, 178 (1985)

[18] Rochette JB, Vergnaud JM, J. Polym. Eng., 19, 303 (1990)

[19] Accetta A, Vergnaud JM, Rubber Chem. Technol., 56, 689 (1983)

[20] Setua DK, De SK, Rubber Chem. Technol., 56, 808 (1983)

[21] Kang CK, Kim BK, Polym.(Korea), 15(4), 459 (1991)