Abstract
The focus of this study was to observe the mechanical properties of bamboo plastic composites (BPCs) with bamboo pulp fiber (BPF) or white mud (WM). The essential work of fracture (EWF) methodology was used to characterize the impact toughness of BPCs. The results revealed an increase in flexural, tensile and impact properties, when adding the BPF in the BPCs. While the flexural properties of WM-reinforced BPCs revealed increasing, there was a decrease in tensile and impact strength. In an impact strength analysis study, BPF-filled BPCs showed excellent impact property over WM-filled BPCs; scanning electron microscopy (SEM) helps to explain impact fracture behavior of BPCs. EWF analysis of impact results showed that the specific essential work of fracture (we) increased significantly with the amount of BPF used in BPCs but decreased with the increase of WM in the BPCs. There was similar variation for the non-essential plastic work (βwp) of BPCs. This result indicates that the fracture initiation and fracture propagation of BPCs are different.
Highlights
With the national economy and further improvement of people’s living standards, the mass consumption demands of global resources are gradually increasing, which has triggered a series of environmental sustainability and material availability [1]
Yilmaz et al [22] investigated the fracture behavior of the acrylonitrile–butadiene-styrene/Polyamide 6 (ABS/PA6) blends reinforced short glass fiber and CaCO3 using essential work of fracture (EWF) method, the results of which show that fracture behavior of the ABS/PA6 blends turned from ductile to brittle; this was due to ratio of reinforcement in the matrix increased
That, when 30% and 40% of bamboo pulp fiber (BPF) was added into the composites, the tensile strength of bamboo plastic composites (BPCs) will when 30% and 40% of BPF was added into the composites, the tensile strength of BPCs will increase increase to 26.17% and 61.53%, respectively, which indicated an improvement from tension transfer to 26.17% and 61.53%, respectively, which indicated an improvement from tension transfer to the to the interface area between BPF and the matrix
Summary
With the national economy and further improvement of people’s living standards, the mass consumption demands of global resources are gradually increasing, which has triggered a series of environmental sustainability and material availability [1]. Yilmaz et al [22] investigated the fracture behavior of the acrylonitrile–butadiene-styrene/Polyamide 6 (ABS/PA6) blends reinforced short glass fiber and CaCO3 using EWF method, the results of which show that fracture behavior of the ABS/PA6 blends turned from ductile to brittle; this was due to ratio of reinforcement in the matrix increased He et al [20] studied fracture toughness of multilayered-structure materials based on the EWF method, which results showed that the number of layers have a great influence on the resistance to crack propagation of multilayered specimen. Bamboo residue fiber (BRF)reinforced high-density polyethylene (HDPE) caused the increase of tensile and flexural properties, but BRF-reinforced HDPE had lower impact strength [25] For this reason, BPF and WM are used to improve the mechanical properties of bamboo plastic composites (BPCs).
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