Influence of TiO2 in Absorbing Electron Beam Radiation on Silicone Rubber

International Journal of Polymer and Textile Engineering

© 2016 by SSRG - IJPTE Journal

Volume 3 Issue 3

Year of Publication : 2016

Authors : Rupa Bhattacharyya, Sumit Nandi, Gopal Chandra Dhara

10.14445/23942592/IJPTE-V3I6P101

How to Cite?

Rupa Bhattacharyya, Sumit Nandi, Gopal Chandra Dhara, "Influence of TiO2 in Absorbing Electron Beam Radiation on Silicone Rubber," SSRG International Journal of Polymer and Textile Engineering, vol. 3,  no. 3, pp. 1-5, 2016. Crossref, https://doi.org/10.14445/23942592/IJPTE-V3I6P101

Abstract:

 The influence of electron beam radiation on silicone rubber compounded with TiO2 was studied with variation in doses of the pigment. The rubber was mixed with TiO2 and a proportionate quantity of silicone rubber cross linker which was then subjected to varying doses of electron beam. The physicomechanical and the ageing properties of the rubber was investigated with increasing incorporation of the TiO2 pigment. It was observed that the tensile strength of the polymer rose marginally with a corresponding marginal reduction in the value of elongation at break. The tear strength also displayed a pattern similar to that of the changes in elongation with the highest value lying with the base rubber compound. The heat ageing behaviour indicated a profound positive effect on the retention of tensile properties with increasing content of TiO2 at different doses of radiation. Considering all the results, the concentration level of TiO2 and radiation dose has been optimized to achieve a modified silicone elastomer having the best possible physicomechanical properties.

Keywords:

 Electron beam radiation, Silicone rubber, TiO2, Tensile strength, Elongation at break, Tear strength.

References:

[1] J. Heiner, B. Stenberg and M. Persson, Crosslinking of siloxane elastomers, Polymer Testing 22, 253–257, 2003.
[2] U. Lappan, U. Geibler and S. Uhlmann, Pre-irradiation grafting of styrene into modified fluoroelastomers, Macromol. Symp., 254, 254, 2007.
[3] S. D. Ogunniyi, Peroxide vulcanisation of rubber, Progress in Rubber and Plastic Technology 15 (2), 95–112, 1999.
[4] R. H. Kramer, P. Blonqvist, P. V. Hees and U. W. Gedde, On the intumescence of ethylene-acrylate copolymers blended with chalk and silicone, Polym. Degrad. Stab. 92, 1899, 2007.
[5] M. Aoshima, T. Jinoo and T. Sassa, Electron beam cross linking of ethylene-propylene rubber, Kautschuk Gummi Kunststoffe, 45, 644, 1992.
[6] P. Liu, D. Liu, H. Zou, P. Fan and W. Xu, Structure and properties of closed-cell foam prepared from irradiation crosslinked silicone rubber Journal of Applied Polymer Science, 113(6), 3590–3595,2009.
[7] A. A. Bafsar, Flame retardancy of radiation cross linked poly(vinyl chloride) used as an insulating material for wire and cable, Polym. Degrad.Stab. 77, 221, 2002.
[8] X. S. Fan, Mechanical properties of (ethylene acrylate copolymer)- modified polypropylene-TiO2 blends, J. Vinyl AddtV. Technol., 13, 65, 2007.
[9] R. N. Kumar and R. Mehnert, Electron beam curing of the system cycloaliphatic- epopxidized natural rubber-glycidyl methacrylate in presence of cationic initiators, Macromol. Mater. Eng., 286, 449, 2001.
[10] N. Mongal, D. Chakraborty, R. Bhattacharyya, T. K. Chaki and P. Bhattacharya, Effect of Electron Beam Irradiation over Ethylene Methyl Acrylate Copolymer, Journal of Applied Polymer Science, 112 (1), 28-35, 2009.
[11] P. A. Dworjanyn, J. L. Garnett, A. K. Mulearap, X. Maojin, P. Q. Meng and Y. C. Nho, Novel additives for accelerating radiation grafting and curing reactions, Radiat. Phys. Chem., 42, 31, 1993.
[12] S. K. Datta, A. K. Bhowmick, D. K. Tripathy and T. K. Chaki, Effect of electron beam radiation on structural changes of trimethylolpropane trimethacrylate, ethylene vinyl acetate and their blends, J. Appl. Polym Sci., 60, 1329, 1998.
[13] T. K. Chaki, S. Roy, R. S. Despande, A. B. Majali, V. K. Tikku and A. K. Bhowmick, Electron beam initiated grafing of triallyl cyanurate onto polyethylene: Structure and properties, J. Appl. Polym. Sci., 53, 141, 1994.
[14] N. Mongal, D. Chakraborty, R. Bhattacharyya, T. K. Chaki and P. Bhattacharya, Characterization of electron beam irradiated ethylene methyl acrylate copolymer, Industrial Engineering and Chemistry Research, 49(16), 7113-7120, 2010.
[15] M. Mateev and S. Karagcargier, The effect of electron beam irradiation and content of EVA upon the gel forming processes in LDPE-EVA films, Radiat. Phys. Chem., 51, 205, 1998.
[16] L. P. Nethsinghe and M. Gilbert, Structure-property relationship of irradiation cross linked flexible PVC. II Properties, Polymer, 30, 35, 1989.
[17] N. Mongal, D. Chakraborty, R. Bhattacharyya, T. K. Chaki and P. Bhattacharya, Engineering Properties Of Electron Beam Cross Linked Ethylene Methyl Acrylate Copolymer, Journal of Applied Polymer Science, 117(1), 75-83, 2010.