Morphological properties of impact fracture surfaces and essential work of fracture analysis of cellulose nanofibril‐filled polypropylene composites

Han, Yang‐Su; Gardner, Douglas J.; Nader, Jacques W.

doi:10.1002/app.38513

Cited by 18 publications

(9 citation statements)

References 47 publications

(65 reference statements)

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“…The non-essential plastic work ( βw p ) of BPF-filled BPCs did not show significant differences for the specimens; this indicated that the plastic deformation mechanism of composites is relatively consistent. This result is consistent with previous studies in an impact strength analysis study [33].…”

Section: Resultssupporting

confidence: 94%

Characterization and Research on Mechanical Properties of Bamboo Plastic Composites

Wang

et al. 2018

Polymers

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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.

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Section: Resultssupporting

confidence: 94%

Characterization and Research on Mechanical Properties of Bamboo Plastic Composites

Wang

et al. 2018

Polymers

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“…The fracture morphology in Fig. a indicated a brittle failure mode with no observable fracture initiation point , suggesting there may be no stress concentration point during the impact test and good dispersion of CNFs. A significantly lower amount of bare CNFs are observed on the fracture surface when compared to that of neat CNF‐reinforced PP.…”

Section: Resultsmentioning

confidence: 99%

Maleic anhydride polypropylene modified cellulose nanofibril polypropylene nanocomposites with enhanced impact strength

et al. 2014

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Development of cellulose nanofibrils (CNFs) reinforced polypropylene (PP) nanocomposites using melt compounding processes has received considerable attention. The main challenges are to obtain well‐dispersed CNFs in the polymer matrix and to establish compatible linkages between the CNFs and PP. Manufacturing of CNF reinforced PP nanocomposites was conducted using a twin‐screw co‐rotating extruder with the masterbatch concept. Modifications of CNFs using maleic anhydride polypropylene were performed. The best mechanical properties of the nanocomposites are 1.94 GPa (tensile modulus), 32.8 MPa (tensile strength), 1.63 GPa (flexural modulus), 50.1 MPa (flexural strength), and 3.8 kJ m−2 (impact strength), which represents about 36, 11, 21, 7, and 23% improvement, respectively, compared to those of pure PP (1.43 GPa, 29.5 MPa, 1.35 GPa, 46.9 MPa, and 3.1 kJ m−2). Fracture morphology examination indicated good dispersion of CNFs in the PP matrix was achieved through this specific manufacturing process. MAPP treatments enhanced the interfacial adhesion between the CNFs and PP. POLYM. COMPOS., 37:782–793, 2016. © 2014 Society of Plastics Engineers

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“…In an experimental investigation the processing, mechanical and thermal properties of a polypropylene PP/CNW nanocomposite were studied as they were affected by CNW content and amount of maleic anhydride (MA) grafted PP, MA-g-PP in PP matrix and its processing (42). Beside other techniques, SEM was used to investigate crack initiation and propagation process in notched and unnotched Izod impact fracture surfaces of the CNF and MFC filled PP composites compared with MCC-filled PP composites (43).…”

Section: Cellulose Nanoparticles As Reinforcementmentioning

confidence: 99%

Cellulose Nanocomposites

Feldman

2015

Journal of Macromolecular Science, Part A

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Cellulose is a linear polysaccharide and one of the world's most abundant biopolymers. It is one of the renewable biopolymers being studied to reduce the dependence on non-renewable mineral oil based products. Cellulose can be used in different kinds of composites, including the recent nanocomposites.The production of nanoscale cellulose fibers and their use in polymer composites gained increasing attention due to their interesting properties and potential applications. This review paper is trying to cover studies done to use various forms of cellulose as reinforcement for different polymers, as matrix, as reinforcement and matrix for the same nanocomposite and as a component in polyblend nanocomposites beside other polymers.

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Morphological properties of impact fracture surfaces and essential work of fracture analysis of cellulose nanofibril‐filled polypropylene composites

Cited by 18 publications

References 47 publications

Characterization and Research on Mechanical Properties of Bamboo Plastic Composites

Characterization and Research on Mechanical Properties of Bamboo Plastic Composites

Maleic anhydride polypropylene modified cellulose nanofibril polypropylene nanocomposites with enhanced impact strength

Cellulose Nanocomposites

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