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Plywood-like structure of injection-moulded polypropylene
- Source :
-
Polymer . Nov2010, Vol. 51 Issue 25, p5983-5989. 7p. - Publication Year :
- 2010
-
Abstract
- Abstract: Injection-moulded products having unique structure, in which the direction of molecular orientation in the skin layer is perpendicular to that in the core layer, are developed employing isotactic polypropylene with a nucleating agent. The extraordinary three-layered structure with β trigonal crystal form in the core layer, which shows higher impact strength than the conventional α monoclinic form, leads to high level of toughness. Moreover, an injection-moulded product having five-layered structure is also demonstrated in this paper. Because of the complicated crack propagation nature due to the abrupt change of molecular orientation, which avoids fractured pieces with sharp-edge, the products with plywood-like structure will be employed in various applications to improve the safety. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00323861
- Volume :
- 51
- Issue :
- 25
- Database :
- Academic Search Index
- Journal :
- Polymer
- Publication Type :
- Academic Journal
- Accession number :
- 55389539
- Full Text :
- https://doi.org/10.1016/j.polymer.2010.10.007