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Deformation and failure of sugarcane bagasse reinforced PP

Anggono, Juliana and Farkas, Ágnes Elvira and Bartos, András and Móczó, János and Antoni, and , Hariyati Purwaningsih and Pukánszky, Béla (2018) Deformation and failure of sugarcane bagasse reinforced PP. [UNSPECIFIED]

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        Abstract

        Polypropylene composites were prepared from sugarcane bagasse fibers by extrusion and injection molding. Wood flour was used as reference filler in the study. The fiber content of the composites changed between 0 and 30 wt% in 5 wt% steps. Maleated polypropylene was used as coupling agent to improve interfacial adhesion. Mechanical properties were characterized by tensile and fracture testing, while local deformation processes were followed by acoustic emission and instrumented impact testing, as well as by the analysis of scanning electron micrographs. The results showed that sugarcane bagasse fibers reinforce polypropylene similarly to other natural fibers. They increases stiffness, but decrease tensile yield stress, tensile strength and deformability. Increased interfacial adhesion leads to the considerable improvement of reinforcement. Bagasse fiber and wood flour filled composites have very similar properties. The impact resistance of the composites increased in the presence of both fibers compared to the neat matrix. Debonding is the dominating process in the absence of the coupling agent, while mainly fiber fracture occurs in its presence. Increased plastic deformation after debonding results in slightly improved impact resistance.

        Item Type: UNSPECIFIED
        Uncontrolled Keywords: Natural fiber reinforcementMechanical propertiesFracture resistanceInstrumented impact testingInterfacial adhesionLocal deformation processes
        Subjects: T Technology > TS Manufactures
        Divisions: Faculty of Industrial Technology > Mechanical Engineering Department
        Depositing User: Admin
        Date Deposited: 10 Jan 2019 06:07
        Last Modified: 27 Nov 2020 09:12
        URI: http://repository.petra.ac.id/id/eprint/18760

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