Reprocessing of wood fibre reinforced polypropylene composites. Part I: Effects on physical and mechanical properties

Beg, Mohammad Dalour Hossen; Pickering, Kim L.

doi:10.1016/j.compositesa.2008.04.013

Cited by 136 publications

(119 citation statements)

References 19 publications

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“…The strength of natural fiber reinforced composites is highly influenced by the incompatibility between the hydrophilic fibers and the hydrophobic polymers. The most common way to improve the interface is the addition of coupling agents [10,17,[19][20][21][22]. However that treatment slightly affects the stiffness of the natural fiber reinforced composites.…”

Section: Introductionmentioning

confidence: 99%

Macro and micromechanics analysis of short fiber composites stiffness: The case of old newspaper fibers–polypropylene composites

Serrano

Espinach²,

Tresserras³

et al. 2014

Materials & Design

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Section: Introductionmentioning

confidence: 99%

Macro and micromechanics analysis of short fiber composites stiffness: The case of old newspaper fibers–polypropylene composites

Serrano

Espinach²,

Tresserras³

et al. 2014

Materials & Design

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“…16,18 The results of analysis of variance obtained from bending strength test indicated that there was a statistically significant difference between the bending strength values of the studied composite prior to and after recycling at 95% confidence level. There were, as well, significant differences between the bending strength values of Rec1 samples and those of Rec3 and Rec4, and likewise between Rec3 and Rec4 samples.…”

Section: Fiber Length Measurementmentioning

confidence: 99%

“…14 Although the trend is generally a loss of mechanical properties [15][16][17][18] , reprocessing can also lead to enhanced strength and stiffness values attributed to the improved dispersion of fiber within the polymer matrix. 16,[19][20][21][22][23] The archival publications indicate that water absorption and thickness swelling behavior of reprocessed natural fiber plastic composites depend on a numerous factors including interface quality, chemical composition, fiber length and distribution, and density.…”

Section: Introductionmentioning

confidence: 99%

“…16,[19][20][21][22][23] The archival publications indicate that water absorption and thickness swelling behavior of reprocessed natural fiber plastic composites depend on a numerous factors including interface quality, chemical composition, fiber length and distribution, and density. The results confirmed that generally the recycling process boosted water resistance and dimensional stability in the studied formulations.…”

Section: Introductionmentioning

confidence: 99%

“…The change in mechanical properties was reported to be mostly arising from fiber fracture that occurred during reprocessing, with the subsequent reduction in average fiber length from 2.36 mm for the original fiber to 0.37 mm for the fiber extracted from the composites reprocessed for 8 times. 16,18 Conventional static tests are usually employed to characterize the mechanical properties of such composites, which generally include tensile, bending, and impact tests. Since fiber-reinforced thermoplastic composites can undergo miscellaneous types of dynamic stresses during service, investigation on the dynamic mechanical properties of these materials calls for immediate attention.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Multiple Extrusions on Structure-property Performance of Natural Fiber High-density Polyethylene Biocomposites

et al. 2018

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Detailed analysis of the effects of multiple extrusions on physical, mechanical, micro-structural as well as dynamic mechanical thermal properties of natural fiber high-density polyethylene (HDPE) composites is reported. Composite materials containing HDPE, wood flour, and Maleic Anhydride polyethylene (MAPE) were manufactured and subjected to a recycling process consisting of up to four times grinding and reprocessing under industrial conditions. A wide range of analytical methods including bending tests, modulus of elasticity, impact strength, Scanning electron microscopy (SEM), fiber length measurement, water absorption tests, and dynamic mechanical thermal analysis (DMTA) were employed to understand the effects of recycling on natural fiber-HDPE composites. The results revealed that the recycled composites had lower bending strength and modulus of elasticity values, as compared to the reference counterparts. Also, the once recycled composites showed higher impact strength. Results, as well, indicated that generally the recycled composites had lower water absorption values as compared to the reference ones. The results obtained from DMTA exhibited a decrease in storage modulus and an increase in mechanical loss factor (tan δ) for all composites subjected to recycling. Alterations in phase transition temperatures and intensities were also monitored and the possible reasons were analyzed.

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Wood Plastic Composite: Present and Future

Faruk

Błędzki

2012

Wiley Encyclopedia of Composites

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Wood‐plastic composites (WPCs) may be one of the most dynamic sectors of the present day plastic industry. Although the technology is not new, there is growing interest in the new design possibilities that this marriage of materials offers. The formulation variations of WPCs that increase wood content offer expansion into other uses, and volume processors must produce faster, better, and cheaper materials. On the other hand, weatherability and life cycle costs are the major factors that restrict the expansion of the field of WPCs. This article gives an overview of the recent literature, covering all aspects of WPC materials and their performance as of today. It focuses on their compositions, that is, thermoplastics and thermosets, wood fiber types, and additives. Furthermore, it includes recent progress and improvements in the WPC production area. The processes (compounding, extrusion, injection molding, and compression molding) used for the manufacture of WPC products are described. The properties (mechanical, physical, and biological) of WPC are also covered. This paper proceeds to take the performance and properties of microcellular‐foamed WPC and nano‐WPC into account. Last, this paper concludes with applications, developments, and future trends of WPCs.

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Reprocessing of wood fibre reinforced polypropylene composites. Part I: Effects on physical and mechanical properties

Cited by 136 publications

References 19 publications

Macro and micromechanics analysis of short fiber composites stiffness: The case of old newspaper fibers–polypropylene composites

Macro and micromechanics analysis of short fiber composites stiffness: The case of old newspaper fibers–polypropylene composites

Effects of Multiple Extrusions on Structure-property Performance of Natural Fiber High-density Polyethylene Biocomposites

Wood Plastic Composite: Present and Future

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