Evaluation of Wood Plastic Composites Produced from Mahogany and Teak

Adefisan, O. O.; McDonald, Armando G.

doi:10.22161/ijaers.4.12.5

Cited by 6 publications

(6 citation statements)

References 15 publications

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“…Composites made from <2 mm particles recorded significantly higher MFR and lower viscosity than those from <0.5 mm particles. A similar observation was seen in WPC [19] and bamboo HDPE composites [24] made with <2 mm versus <0.5 mm screened particles. This phenomenon could be because of the lower density and an increase in the unfilled regions in the composites as observed by Stark and Berger [28].…”

Section: Melt Flow and Rheological Propertiessupporting

confidence: 81%

“…The degree of HDPE crystallinity and transition temperature in the corncob plastic composites was determined by DSC and data presented in Table 5. These values were comparable to WPC [13,16,19]. The HDPE crystallinity in the composites made from <2 mm particles was 6% higher than that made from the <0.5 mm particles (65.9%).…”

Section: 5supporting

confidence: 69%

“…As shown, composites made from <2 mm particles was 17% lower than that made from <0.5 mm particles (1056 kg/m 3 ). A similar decrease in density was observed in wood plastic composites (WPC) made with <2 mm versus <0.5 mm screened particles [19]. The lower density could be attributable to incomplete filling of the voids and/or lumens in the larger screened particles during extrusion.…”

Section: 2supporting

confidence: 58%

“…The Df for the composites made with <2 mm corncob particles (4.84 x 10 -9 m 2 /s) was about 3-fold higher than that for the <0.5 mm particles. The respective WA of the <2 mm and <0.5 mm corncob composites was shown to increase from 4.04 to 33.6% and 3.82 to 15.1% [19], respectively. Corncob composites made with smaller particle size had the least sorption properties.…”

Section: 4mentioning

confidence: 90%

“…Optical microscopy was performed on screened particles on an Olympus BX51 microscope at 40× magnification equipped with a DP70 digital camera. Particle measurements (length and width) were performed on 160 particles for each sample using the Olympus MicroSuite software [19].…”

Section: 2mentioning

confidence: 99%

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Evaluation of the Flexural Strength, Sorption, Rheological and Thermal Properties of Corncob Plastic Composites

Adefisan¹,

McDonald²

2018

IJAERS

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Plastic composites were made from corncobs and high density polyethylene (HDPE) by extrusion and evaluated. The composites were manufactured using two different screened corncob particle size fractions (<2 mm and <0.5 mm) and tested for flexural properties, water sorption, melt flow and thermal properties. The melt viscosities at 190 o C were 18.0 ± 0.8 kPa•s (<2 mm) and 24.0 ± 0.6 kPa•s (<0.5 mm). The results obtained indicated that the composites made with the smaller particle size fraction had higher flexural strength (31.7 ± 1.7 MPa) and modulus of elasticity (1.4 ± 0.1 GPa) than those made with the larger particle size fraction (21.2 ± 1.4 MPa and 1.1 ± 0.1 GPa). Also, the composites made with the smaller particles and were more dimensionally stable. Corncob composites had thermal stability range of 259 -274 o C (onset degradation temperature). The corncob composites made with smaller sized particles possessed better properties in comparison with those made from the <2 mm. Particle size and density significantly affected the mechanical, physical and thermal properties of the composites evaluated.

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Section: Melt Flow and Rheological Propertiessupporting

confidence: 81%

Section: 5supporting

confidence: 69%

Section: 2supporting

confidence: 58%

Section: 4mentioning

confidence: 90%

Section: 2mentioning

confidence: 99%

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Evaluation of the Flexural Strength, Sorption, Rheological and Thermal Properties of Corncob Plastic Composites

Adefisan¹,

McDonald²

2018

IJAERS

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Effect of Different Reinforcing Fillers on Properties, Interfacial Compatibility and Weatherability of Wood-plastic Composites

Wang

McDonald

2019

J Bionic Eng

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Dimensional stability and mechanical properties of extruded-compression biopolymer composites made from selected Nigerian grown wood species at varying proportions

Aina

Oladimeji

Agboola

et al. 2022

Sci Rep

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Abstract250 µm particle size of wood and polyethylene (PE) materials were compounded at mixing proportions of 60/40, 70/30, and 80/20 (with an increase in polymer to decrease in wood content) and extruded using a single screw extruder at a temperature range of 110–135 °C. The particles of Gmelina Arborea, Tectona grandis, Cordiamilleni, and Nauclea diderichii with recycled Polyethylene were compounded and compressed at 175 N/mm to produce biopolymer composites. The biopolymer composites were subjected to dimensional stability test at 24 h of the water soak method and the ability to withstand load-bearing capacity was investigated. The outcome of the results shows that extruded-compressive biopolymer composites had values ranging from 0.06–1.43 g/cm3, 0.38–3.41%, and 0.82–6.85% for observed density, water absorption, and thickness swelling at 24 h of a water soak test. The mechanical properties values ranged from 0.28 Nmm−2–21.35 Nmm−2 and 0.44–550.06 Nmm−2 for flexural modulus and strength; and 191.43 Nmm−2–1857.24 Nmm−2 and 0.35 Nmm−2–243.75 Nmm−2 for tensile modulus and strength respectively. It was observed that moisture uptake and strength displayed by the composites vary accordingly in values obtained for wood species at different mixing proportions. As observed that the more polyethylene content is compounded to wood, the better its dimensional stability, and flexural and tensile properties. The wood particles of Cordiamilleni compounded at a proportion of 60 to 40 (polyethylene/wood) performed best in dimensional stability and load-bearing capacity. This study confirmed the effect of methods on wood species and recycled PE for manufacturing wood polymer-based composite for both indoor and outdoor applications.

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Evaluation of Wood Plastic Composites Produced from Mahogany and Teak

Abstract: Abstract-

Cited by 6 publications

References 15 publications

Evaluation of the Flexural Strength, Sorption, Rheological and Thermal Properties of Corncob Plastic Composites

Evaluation of the Flexural Strength, Sorption, Rheological and Thermal Properties of Corncob Plastic Composites

Effect of Different Reinforcing Fillers on Properties, Interfacial Compatibility and Weatherability of Wood-plastic Composites

Dimensional stability and mechanical properties of extruded-compression biopolymer composites made from selected Nigerian grown wood species at varying proportions

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