Mechanical properties of high density polyethylene matrix composites reinforced with chitosan particles

Daramola, Oluyemi Ojo; Taiwo, Anuoluwapo Samuel; Oladele, Isiaka Oluwole; Olajide, J. L.; Adeleke, S.A.; Adewuyi, B. O.; Sadiku, Rotimi

doi:10.1016/j.matpr.2020.03.695

Cited by 19 publications

(21 citation statements)

References 9 publications

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“…6 wt.% CF/YPP had the optimum performance. This is in agreement with the study of [ 49 ]. Also, the findings of [ 50 ] showed that increase in particulate content in the presence of pineapple leaf fibre improved tensile modulus which buttressed the result obtained in the present study.…”

Section: Resultssupporting

confidence: 94%

“…The result of this study substantiates the findings of [ 59 ] that concluded that increase in particulate content ensued reduced impact strength. The study of [ 48 , 49 ] also serves as a confirmation to this assertion. In addition, the SEM images from Figures 6(a) – 6(d) are also characterized with increase in agglomeration of YPP at the matrix-fibre interface which could also be responsible for the reduction in impact strength.…”

Section: Resultssupporting

confidence: 52%

“…The common trend observed between tensile and flexural strength at break was that optimum values were obtained at 4wt.%, after which a decline in these properties was recorded. The authors of [ 49 ] stated that the addition of particulate chitosan to high-density polyethylene matrix at 4% by weight of matrix result in coalescence of the particulate reinforcement and further increase led to congestion in the amount of filler and thus reduced flexural strength was discovered. This justified the result gotten in this study.…”

Section: Resultsmentioning

confidence: 99%

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Effect of Surface Modification on the Properties of Polypropylene Matrix Reinforced with Coir Fibre and Yam Peel Particulate

Adediran

Balogun

Akinwande

et al. 2021

The Scientific World Journal

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Polypropylene composites reinforced with coir fibre and yam peel particulate were produced using compression moulding machine. Treated and untreated coir fibres were used; 1.5 M NaOH was used for the treated coir fibres. Yam peel was grouped into two, treated and untreated; the treated was modified using 1 M solution of NaOH and HCl in the proportion of 30% and 70%, respectively. The yam peel which was sun-dried for 14 days was pulverized and sieved to −45 µm. Samples were developed using treated and untreated reinforcements (TCF/YPP and UCF/YPP) at constant coir fibre proportion (15%) and varied amount of yam peel particulate (2, 4, 6, and 8 wt.%). The hybrid composite samples developed were probed for mechanical properties and thermal and wear behaviour. The level of particles agglomeration at the fibre-matrix interface was examined using scanning electron microscope. The results show that sample reinforced with treated 4 wt.% coir fibre and yam peel particulate had optimum mechanical properties. However, the thermal conductivity of composite samples increased with fibre addition. All composite samples developed had better resistance to abrasion when compared to the control sample.

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Section: Resultssupporting

confidence: 94%

Section: Resultssupporting

confidence: 52%

Section: Resultsmentioning

confidence: 99%

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Effect of Surface Modification on the Properties of Polypropylene Matrix Reinforced with Coir Fibre and Yam Peel Particulate

Adediran

Balogun

Akinwande

et al. 2021

The Scientific World Journal

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“…At 2% PCS, the tensile strength was observed to increase with fiber loading from 5 to 30 wt% presenting an increase of up to 63 MPa at 30 wt% BF when compared with 0/0 of BF/PCS. The rise may be due to coalesce of the fiber and filler particulate 58 . Good wettability of the particulate and BF fiber to the matrix enhanced adhesion, thereby inhibiting dislocation movement 59 .…”

Section: Resultsmentioning

confidence: 99%

Experimental evaluation of bamboo fiber/particulate coconut shell hybrid PVC composite

Adediran

Akinwande

Balogun

et al. 2021

Sci Rep

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Bamboo fibers (BF) treated in 1.3 Molar NaOH and particulate coconut shell (PCS) sieved to − 45 µm were incorporated into polyvinyl chloride (PVC) matrix towards improving the properties of PVC composite for ceiling boards and insulating pipes which sags and degrade with time needing improvement in properties. The process was carried out via compression moulding applying 0.2 kPa pressure and carried out at a temperature of 170 °C. Composites developed were grouped according to their composition. Groups A, B, C, and D were infused with 2, 4, 6 and 8 wt% PCS at constant amount, respectively. Each group was intermixed with a varying proportions of BF (0–30 wt% at 5% interval). Tests carried out on the samples produced revealed that the yield strength, modulus of elasticity, flexural strength, modulus of rupture were enhanced with increasing BF proportion from 0 to 30 wt% BF at 2 wt% constant PCS input. Thermal and electrical properties trended downward as the fiber content reduced even as the hardness was enhanced with PCS/BF intermix which was also reflected in the wear loss index. Impact strength was highest on the infix of 4 wt% PCS and 15 wt% BF. Compressive strength was better boasted with increasing fiber and PCS amount but 8 wt% PCS amounted to depreciation in trend. It was generally observed that PCS performed optimally at 2 wt% incorporation while beyond that resulted in lowering of strength. Blending of the two variable inputs; 0–30 wt% BF and 2 wt% PCS presented better enhancement in properties.

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“…The resilience is highest for loads with small particle sizes (0.63 mm), thus verifying Hall-Petch relationship which summarizes that the strength is inversely proportional to the particle size, the refinement of the particles created more grain boundaries that provided sufficient capacity to resist the applied stress [28] [29] [30].…”

Section: Resultsmentioning

confidence: 78%

Elaboration and Characterization of a Hybrid Composite Material with Two Particles of the Same Size: Coco Shells and Palm Shells

Noah¹,

Betene²,

Obame³

et al. 2020

OJCM

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This work aims to develop and characterize a hybrid composite material with two particles of the same size. As reinforcing particles, the hulls of palm nuts and coconut are chosen. Hybrid composite material composites in the form of specimens were produced by molding at 10%, 20% and 30% mass fractions in various sizes (0.63 mm, 1.25 mm and 2.5 mm). The samples were physically characterized (water absorption rate, moisture content, actual, theoretical and apparent density) and mechanical in 3-point flexion. The main results are: the highest and minimum water absorption rate are respectively 3.57% and 0.67% for respectively particle sizes 1.25 mm (sample P10C30) and 0.67% in the size of 0.63 mm (sample P10C10). The moisture content varies from 0.64 to 7.14% respectively for the P20C20 (2.5 mm) and P10C30 (2.5 mm) samples. The maximum and minimum real density are 1340,518 Kg/m 3 and 1055.981 Kg/m 3 , for respectively the composites of particles sizes 1.25 mm (P20C10) and 0.63 mm (sample P20C20). The minimum real density is its maximum theoretical density is 1194.949 Kg/m 3 (for samples P20C10, P10C10 and P30C10); however, the minimum is 1189.966 Kg/m 3 (P10C20 and P20C20). The bulk density varies from 933.28 Kg/m 3 to 1176.1 Kg/m 3 , respectively, in sizes from 2.5 mm (P10C30) to 0.63 mm (for P10C30). As for the mechanical characteristics, the Modulus of Elasticity (MOE) varies from 25.664 GPa to 25.759 GPa, respectively, the samples P10C10 (1.25 mm) and P10C20 (2.5 mm). The MOE values describe a parabola whose peak is reached when the palm shell loads are 20%, that is to say P20C10, whatever the particle size distribution. In resilience, samples with small particles are more resilient with a maximum value of 22.49 J/cm 2 and a minimum value of 4.45 J/cm 2 to verify the principles of Hall-Petch's law.

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Mechanical properties of high density polyethylene matrix composites reinforced with chitosan particles

Cited by 19 publications

References 9 publications

Effect of Surface Modification on the Properties of Polypropylene Matrix Reinforced with Coir Fibre and Yam Peel Particulate

Effect of Surface Modification on the Properties of Polypropylene Matrix Reinforced with Coir Fibre and Yam Peel Particulate

Experimental evaluation of bamboo fiber/particulate coconut shell hybrid PVC composite

Elaboration and Characterization of a Hybrid Composite Material with Two Particles of the Same Size: Coco Shells and Palm Shells

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