Scanning electron microscopy studies of abraded rubber surfaces
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The surfaces of polybutadiene rubber (BR) and styrene-butadiene rubber (SBR) subjected to different degrees of abrasion have been studied by scanning electron microscopy (SEM). In the case of SBR it has been shown that abrasion begins with marks in the direction of rotation which are followed by fine ribbing and then by the formation of coarse, angular and prominent ridges. Prolonged abrasion produces folding and cavities on the surface. This change in abrasion mechanism has been explained as a result of heat build-up and high crack growth rate in SBR which occur beyond a certain stage. These help in softening the matrix and removing the surface. On the other hand, fractured surfaces of BR show that ridges begin to form at about 250 revolutions and there is no characteristic difference between the abraded surfaces at lower or higher degrees of abrasion.
KeywordsScanning Electron Microscopy Rubber Fracture Surface Crack Growth Rate Electron Microscopy Study
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- 1.A. K. Bhowmick andS. K. De,Rubber Chem. Techn. 52 (1979)985.Google Scholar
- 2.Idem, J. Appl. Polymer Sci. 25 (1980).Google Scholar
- 3.Idem Rubber Chem. Tech. 53 (1980) 960.Google Scholar
- 4.D. I. James (Ed.), “Abrasion of Rubber” (Maclaren and Sons Ltd, London, 1967).Google Scholar
- 6.K. A. Grosch andA. Schallamach,Rubber Chem. Techn. 39 (1966) 287.Google Scholar
- 7.I. V. Kragelskii,Soviet Rubber Techn. 18 (1959) 20.Google Scholar
- 8.E. Southern andA. G. Thomas,Rubber Chem. Techn. 52 (1979) 1008.Google Scholar
- 10.A. K. Bhowmick, S. Basu andS. K. De,Rubber Chem. Techn. 53 (1980) 321.Google Scholar
- 11.A. K. Bhowmick, G. B. Nanda, S. Basu andS. K. De,ibid. 53 (1980) 327.Google Scholar
- 13.ASTM Standards D412-51T and D624-48.Google Scholar