Characterization of electron beam irradiated natural rubber/modified starch composites

Magdy M. Senna; Rasha M. Mohamed; Amira N. Shehab-Eldin; Sabrnal El-Hamouly

Journal of Industrial and Engineering Chemistry, Vol.18, No.5, 1654-1661, September, 2012

DOI10.1016/j.jiec.2012.03.004 Export Citation

Characterization of electron beam irradiated natural rubber/modified starch composites

Magdy M. Senna^†, Rasha M. Mohamed¹, Amira N. Shehab-Eldin², and Sabrnal El-Hamouly²

Catalytic Chemistry Chair, Chemistry Department, Faculty of Science, King Saud University, Riyadh, Saudi Arabia
¹Radiation Chemistry Department, National Center for Radiation Research and Technology, Nasr City, Cairo, Egypt
²Faculty of Science, Chemistry Department, Menoufia University, Shibin el Kom, Egypt

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The effects of electron beam irradiation on thermal, mechanical and morphological properties of natural rubber/starch blends were investigated. The results of thermogravimetric analysis indicated that the thermal stability of natural rubber was improved by the addition of modified starch and by irradiation. On the other hand, thermal stability of irradiated natural rubber and natural rubber/unmodified starch blends is lower than that of pure natural rubber. The tensile strength of natural rubber (2.01 MPa) was improved to 3.82 MPa with the addition of 5 phr unmodified starch. There was a further increase from 2.01 MPa to 6.44 MPa when 5 phr modified starch was used.

Keywords:Natural rubber;Modified starch;Electron beam irradiation

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[1] Vaidya UR, Bhattacharya M, Zhang DM, Polymer, 36(6), 1179 (1995)

[2] Yang ZH, Bhattacharya M, Vaidya UR, Polymer, 37(11), 2137 (1996)

[3] Pallay J, Kelemen P, Berghmans H, Dommelen DV, Macromol. Mater. Eng., 275, 25 (2000)

[4] Park HM, Li X, Jin CZ, Park CY, Cho WJ, Ha CS, Macromol. Mater. Eng., 287, 553 (2002)

[5] Romhany G, Jo´ zsef KK, Cziga` ny T, Macromol. Mater. Eng., 288, 699 (2002)

[6] Rouilly A, Rigal L, Gilbert RG, Polymer, 45(23), 7813 (2004)

[7] Ha SK, Broecker HC, Macromol. Mater. Eng., 288, 569 (2003)

[8] Sandstrom PH, The Goodyear Tire & Rubber Company, Chemistry, US Patent 63919455 (2002)

[9] Zhang LQ, Wu YP, Ji MQ, Beijing University of Chemical Technology, CN 03100424.5 (2003)

[10] Wu YP, Ji MQ, Qi Q, Wang YQ, Zhang LQ, Macromol. Rapid Commun., 25(4), 565 (2004)

[11] Buchanan RA, Kwolek WF, Katz HC, Russell CR, Starch/Starke., 23, 350 (1971)

[12] Buchanan RA, Katz HC, Russell CR, Rist CE, Rubber J., 153, 28 (1971)

[13] Buchanan RA, Starch/Starke., 26, 165 (1974)

[14] Buchanan RA, Doane WM, Russell CR, Kwolek WF, J. Elastomers Plast., 7, 95 (1975)

[15] Chapiro A, Radiation Chemistry of Polymeric Systems, Wiley-Interscience, New York (1962)

[16] Sigh A, Silverman J (Eds.), Radiation processing of Polymers, Hanser, Munich (1992)

[17] Woods RJ, Pikaev AK, Applied Radiation Chemistry, Radiation Processing, Wiley, New York (1994)

[18] Zaharescu T, Chipara M, Postolache M, Polym. Degrad. Stab., 66, 5 (1999)

[19] Chantra TR, Abdulla Z, Ismail H, Polym. Plast. Technol. Eng., 45, 555 (2006)

[20] Wu YP, Qi Q, Liang GH, Zhang LQ, Carbohydr. Polym., 65, 109 (2006)

[21] Vasila C (Ed.), Handbook of Polyolefins, Marcel Dekker Inc., New York, 431 (2000)

[22] Senna M, El-Shahat HA, El-Naggar AWM, J. Polym. Res., 18, 763 (2011)

[23] Kaith BS, Jindal R, Jana AK, Maiti M, Bioresour. Technol., 101, 6843 (2010)

[24] Wang ZF, Peng Z, Li SD, Lin H, Zhang KX, She XD, Fu X, Compos. Sci.Technol., 69, 1797 (2009)

[25] Rusch KC, Beck RH, J. Macromol. Sci. B., 3, 365 (1969)

[26] Wunderlich B, Macromol. Physics, Vol. 3: Crystal Melting, Academic Press, London (1980)

[27] Eleni, Ioannis A, Costas GB, Hiromasa O, Norioki K, Carbohydr. Polym., 33, 227 (1997)

[28] Brown R, in: Brown R (Ed.), Handbook of Polymer Testing: Physical Methods, Marcel Dekker Inc., (Chapter 14)., 279 (1999)

[29] Ratnam CT, Yoshii F, Makuuchi K, Zaman K, J. Appl. Polym. Sci., 72(11), 1421 (1999)

[30] Ratnam CT, Nasir M, Baharin A, Zaman K, Polym. Int., 50, 503 (2001)