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Percolation model for brittle-tough transition in nylon/rubber blends |
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| Authors: | Alla Margolina Souheng Wu |
| Affiliation: | E. I. du Pont de Nemours and Company, Central Research and Development Department, Experimental Station, Wilmington, Delaware 19898, USA |
| Abstract: | It is proposed that the brittle- tough transition in nylon/rubber blends occurs when the yielding process propagates through thin matrix ligaments in which a plane-strain to plane-stress transition takes place. This propagation process is modelled as a percolation phenomenon. The model explains the observed brittle-tough transition, and predicts that monodisperse and asymmetric particles are more effective in toughening than polydisperse and spherical ones. |
| Keywords: | brittle-tough transition percolation theory polymer blends impact strength rubber toughening nylon/rubber blends |
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