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Thomas SP, Mathew EJ, Marykutty CV. Nanomodified fillers in chloroprene-rubber-compatibilized natural rubber/acrylonitrile-butadiene rubber blends. J Appl Polym Sci 2011. [DOI: 10.1002/app.35406] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Marykutty CV, Mathew G, Thomas S. Mechanical and Swelling Behavior of Double Networked Natural Rubber Cured Using a New Binary Accelerator System. Rubber Chemistry and Technology 2007. [DOI: 10.5254/1.3539417] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Abstract
The concept of double networks, which impart chain orientation to elastomers, is a rather new idea. Double networks were induced in natural rubber vulcanizates cured with different accelerator systems. Double networked natural rubber with different extensions cured with N-cyclohexyl benzothiazyl sulphenamide (CBS) and 1-phenyl 5-ortho -tolyl 2,4 dithiobiuret was studied and the effect of extension on the mechanical properties and swelling was analyzed. The extent of chain orientation was analyzed through anisotropic swelling studies. The modulus, tensile strength and tear strength showed an increase with increased residual extension ratio. The effect was more predominant in the longitudinal direction than in the transverse direction. The ultimate tensile elongation showed a slight deterioration. It was revealed that the formation of double networks with higher residual extension ratios restricted the entry of the solvent. Based on the studies it was concluded that residual extension has a profound effect in determining the final properties of vulcanizates.
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Affiliation(s)
| | - G. Mathew
- 2School of Chemical Sciences, Mahatma Gandhi University, P. D. Hills P.O, Kottayam, Kerala, India; ,
| | - Sabu Thomas
- 2School of Chemical Sciences, Mahatma Gandhi University, P. D. Hills P.O, Kottayam, Kerala, India; ,
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Marykutty CV, Mathew G, Mathew EJ, Thomas S. Studies on novel binary accelerator system in sulfur vulcanization of natural rubber. J Appl Polym Sci 2003. [DOI: 10.1002/app.13023] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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