Correlation between Fractal Dimension and Impact Strength for Wood Plastic Composites

Abstract:

Polylactide (PLA)-based wood plastic composites (WPCs) were manufactured by extrusion blending followed by injection molding. The fracture surfaces created from the impact test were recorded with SEM. Fractal analysis has been used to calculate the fractal dimension of the fracture surfaces with four different fractal analysis techniques. Then, the correlation between the fractal dimension of the fracture surfaces and its impact strength of the PLA-based WPCs was investigated by the linear regression. The results showed that there is a positive correlation between the impact strength and the fractal dimension.

• Periodical: Advanced Materials Research (Volume 411)
• Pages: 548-551
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.411.548
• Online since: November 2011
• Authors: Tao Qiang, De Mei Yu
• Keywords: Fractal Dimension, Fracture Surface, Impact Strength, Injection Molding, Wood Plastic Composite (WPC)

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