Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/24241
Title: Correlation between impact strength and fractal dimensions of fracture surface for PLLA/nano-CaCO3 composites
Authors: Liang, JZ
Duan, DR
Tang, CY 
Tsui, CP 
Keywords: Fractography
Fracture toughness
Polymer-matrix composites
Statistical method
Issue Date: 2014
Publisher: Elsevier
Source: Polymer testing, 2014, v. 35, no. 1, p. 109-115 How to cite?
Journal: Polymer testing 
Abstract: The V-notched Izod impact strength of poly-L-lactide composites filled with nanosized calcium carbonate was measured at room temperature. The fractal dimensions of the impact fracture surface were determined by means of the structure function method, and the relationship between the measured impact strength and the fractal dimensions of the specimen fracture surface was investigated. The results showed that the fractal dimensions of the fracture surface were within the range of about 1.76 to 1.97, all of the correlation coefficients were higher than 0.9, the strong linear correlation indicated that the fractal characterization of the fracture surface for the composites was significant, the measured impact strength increased obviously with increasing fractal dimension of the fracture surface and the correlation between them was roughly linear when the fractal dimension was more than 1.88.
URI: http://hdl.handle.net/10397/24241
ISSN: 0142-9418
DOI: 10.1016/j.polymertesting.2014.03.004
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