Mechanical properties and drop-weight impact performance of injection-molded HDPE/birch fiber composites

Koffi, Agbelenko; Koffi, Demagna; Toubal, Lotfi

doi:10.1016/j.polymertesting.2020.106956

Cited by 59 publications

(41 citation statements)

References 45 publications

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“…But there is a significant reduction in the measured elongation at break und thus the curve course is shortened to the beginning without any necking. However, similar mechanical behavior is already known for HDPE/Birch fiber composites, which are fabricated by a conventional injection‐molding or thermo‐compression process Birch fiber 27 . Because the 3D printed strands in these specimens are oriented parallel to the tensile loading direction, the obtained stress–strain curves show typical behaviors of thermoplastics and wood‐plastic composites (WPCs).…”

Section: Resultssupporting

confidence: 59%

Extrusion‐based 3D printing with high‐density polyethylene Birch‐fiber composites

Koffi

Toubal

Jin

et al. 2021

J of Applied Polymer Sci

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High‐density polyethylene (HDPE) is one of the most widely used semi‐crystalline polyolefin thermoplastics. However, 3D printing with this material remains rare because of massive shrinkage and poor adhesion to common 3D printing build surfaces. In this study, shrinkage and warping were overcome by blending in short fibers of yellow birch at 10–30 wt% along with a coupling agent. Square tubes were printed to measure deformation and mechanical properties of this composite material. Deformation was reduced by 80% in material containing 30 wt% wood compared to neat HDPE. Young's modulus increased respectively by 25%, 30%, and 35% as the filler content increased to 10, 20, and 30 wt%. This is the first known successful 3D printing with wood‐fiber HDPE composite.

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Section: Resultssupporting

confidence: 59%

Extrusion‐based 3D printing with high‐density polyethylene Birch‐fiber composites

Koffi

Toubal

Jin

et al. 2021

J of Applied Polymer Sci

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“…Figure 10 presents the hardness values (Shore D) for the composites. Due to the reinforcing effect provided by the fibers (indentation resistance), the hardness tends to increase with fiber content [12]. The results showed a slight increase in Shore D hardness in UC (67.2 at 15 wt%) with respect to the neat R-HDPE (65.4) and a maximum at 45 wt% fiber content (69.6).…”

Section: Density/hardnessmentioning

confidence: 95%

“…However, the use of 100% recycled materials is still difficult due to various technical difficulties; in general, there is no exact knowledge of the composition and properties of the materials because they do not come from the same source, which implies that they have differences in molecular weights, transition temperatures, particle sizes, melt index, and even the type of additives or impurities they contain [3,5]. Even so, the formulation of composite materials is an interesting option, and the scientific community is focused on the use of virgin [9][10][11][12][13] and recycled [14][15][16][17][18][19][20] polymers as matrices for the production of natural fiber/plastic composites (NFPC) in order to reduce the polymer content and find added-value applications for these wastes (plastics and natural fibers) that can lead to more sustainable solutions. This combination offers several advantages such as better management of natural resources and a suitable way to eliminate plastic waste.…”

Section: Introductionmentioning

confidence: 99%

Effect of Wood Fiber Surface Treatment on the Properties of Recycled HDPE/Maple Fiber Composites

Vázquez‐Fletes

Rodrigue

2021

J. Compos. Sci.

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This work reports on the production and characterization of recycled high density polyethylene (R-HDPE) composites reinforced with maple fibers. The composites were produced by a simple dry-blending technique followed by compression molding. Furthermore, a fiber surface treatment was performed using a coupling agent (maleated polyethylene, MAPE) in solution. FTIR, TGA/DTG, and density analyses were performed to confirm any changes in the functional groups on the fiber surface, which was confirmed by SEM-EDS. As expected, the composites based on treated fiber (TC) showed improved properties compared to composites based on untreated fiber (UC). In particular, MAPE was shown to substantially improve the polymer–fiber interface quality, thus leading to better mechanical properties in terms of tensile modulus (23%), flexural modulus (54%), tensile strength (26%), and flexural strength (46%) as compared to the neat matrix. The impact resistance also increased by up to 87% for TC as compared to UC. In addition, the maximum fiber content to produce good parts increased from 15 to 75 wt% when treated fiber was used. These composites can be seen as sustainable materials and possible alternatives for the development of low-cost building/construction/furniture applications.

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“…In general, the toughness of the composites depends on the magnitude of the impact energy absorbed by the composites and the ability to resist crack propagation. [8] The mechanism of fibertoughening composites mainly involved in fiber debonding and fiber bridging. [35] The fiber pull-out effect could absorb more impact energy, which was favorable for the improvement of toughness.…”

Section: Impact Strength Of the Prepared Compositesmentioning

confidence: 99%

“…[2,3] Inorganic fillers in the forms of long or short fibers and nanoparticles are extensively used as the reinforcements in the polymer composites for their advantages of high strength and modulus. [4][5][6][7][8][9] As an eco-friendly, biodegradable and costeffective inorganic fiber obtained by melt-extruding natural basalt, basalt fibers (BF) has become a suitable substitute for glass fibers and carbon fibers since their exceptional performance such as high temperature resistance and strong chemical resistance. [9][10][11][12] For example, chopped BF and BF fabrics are usually used in reinforced polymer-based composites.…”

Section: Introductionmentioning

confidence: 99%

Enhancing mechanical properties of high‐density polyethylene/polydopamine‐modified basalt fiber composites via synergistic compatibilizers

Song

Guo

et al. 2021

Polymer Composites

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The mechanical properties of polymer-based composites are generally determined by the interfacial adhesion between the inorganic component and the polymer itself. In this work, high-density polyethylene (HDPE) composites were prepared with polydopamine(PDA)-modified short basalt fibers (D-BF) as an inorganic filler, in which the interface between HDPE and D-BF was mediated by maleic anhydride-grafted polyethylene (PE-g-MAH) and maleic anhydride-grafted poly(ethylene-co-octene) elastomer (POE-g-MAH). The adding mass ratio of both the compatibilizers had a significant effect on the mechanical properties of the prepared HDPE/D-BF composites. When total 5 wt% of both PE-g-MAH and POE-g-MAH with a mass ratio of 1/3 was intro-

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Mechanical properties and drop-weight impact performance of injection-molded HDPE/birch fiber composites

Cited by 59 publications

References 45 publications

Extrusion‐based 3D printing with high‐density polyethylene Birch‐fiber composites

Extrusion‐based 3D printing with high‐density polyethylene Birch‐fiber composites

Effect of Wood Fiber Surface Treatment on the Properties of Recycled HDPE/Maple Fiber Composites

Enhancing mechanical properties of high‐density polyethylene/polydopamine‐modified basalt fiber composites via synergistic compatibilizers

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