Turcsán, Tamás and Mészáros, László and Khumalo, Vincent Mandla and Thomann, Ralf and Karger-Kocsis, József (2014) Fracture behavior of boehmite-filled polypropylene block copolymer nanocomposites as assessed by the essential work of fracture concept. Journal of Applied Polymer Science, 131 (13). n/a-n/a. ISSN 0021-8995 (Unpublished)
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Abstract
The essential work of fracture (EWF) method was adapted to determine the fracture toughness of poly(propylene-block-ethylene) (EPBC) based nanocomposites with different amounts (from 0 up to 5 wt.%) of synthetic boehmite alumina (BA). The dispersion of BA in the matrix was studied by transmission and scanning electron microscopies. Agglomerated micronscale along with well dispersed nanoscale BA particles were present in the EPBC matrix. By contrast to the neat EPBC, all nanocomposites failed by unstable necking. Therefore the energy partitioning concept of the EWF was adapted and attention paid to the yielding-related term. Both specific yielding-related essential and non-essential work of fracture parameters increased linearly with the product of the yield stress and elongation at yield derived from static tensile tests.
| Item Type: | Article |
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| Uncontrolled Keywords: | properties and characterization; structure-property relations; thermoplastics; composites |
| Subjects: | T Technology / alkalmazott, műszaki tudományok > TJ Mechanical engineering and machinery / gépészmérnöki tudományok |
| Depositing User: | Dr. Tamás Tábi |
| Date Deposited: | 03 Jul 2014 08:17 |
| Last Modified: | 03 Apr 2023 07:31 |
| URI: | http://real.mtak.hu/id/eprint/13474 |
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