Modifications and Physicomechanical Behaviors of Roselle Fiber-HDPE Biocomposites for Biomedical Uses

Azeez, Taofik Oladimeji; Eze, Innocent Ochiagha; Iwuji, Samuel C.

doi:10.1016/b978-0-323-85213-5.00013-5

Cited by 5 publications

(4 citation statements)

References 23 publications

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“…Government et al, 2018(a-b). The trend has been reported previously (Soury et al, 2009;Hadi, 2011;Patpen et al, 2015;Government et al,, 2021(a); Government et al, 2022;Homkhiew et al, 2014;; Government et al, 2019(b-e); Peng et al, 2015;Rostamiyan, et al 2015(b)). The Eq.6-9 stated the models for prediction of VE, VFS, VFM and VIM using RSM and the results of the ANOVA presented in Tables a to 3d Analysis of predicted and actual plots: Figure 1 presents actual and predicted plots of the mechanical properties of AWF-LDPE composite.…”

Section: Resultssupporting

confidence: 77%

“…This can be reduced to minimum by the introduction of chemical modifying agents (sodium hydroxide, acetic acid, maleated polyethylene, etc) (Nachtigall et al, 2007;Aimi et al, 2014;Rashid et al, 2016; Homkhiew et al, 2014;Feldmann et al, 2016;Government et al, 2022;Hakeem et al., 2015;Zhang et al, 2020).Previous work demonstrated that numerous researches have been performed on the experimentation of the mechanical properties of various wood filler polymer composite (Supri and Lim, 2009;Obasi, 2012;Netra et al, 2012;Salmal et al, 2013;Blezki and Gassan, 1999;Ochi, 2008;Kannappan and Dhuri, 2012;Laadila et al, 2017;Turku et al., 2018). Notwithstanding, few concern is attributed to the main component factors binding the properties and compositions of the composite using optimization process (Chanda, 2015;Harun and Geok, 2016;Laadila et al, 2017;Najafi et al., 2013;Turku et al, 2018;Government et al, 2021(a); Government et al, 2022). Therefore, the need for consideration of these factors to minimize material and processing cost, improve the properties by obtaining optimal values for the composite production (Chanda, 2015;Harun and Geok, 2016;Laadila et al, 2017;Najafi et al, 2013;Turku et al, 2018;Government et al, 2021(a); Government et al, 2022).…”

mentioning

confidence: 99%

“…Notwithstanding, few concern is attributed to the main component factors binding the properties and compositions of the composite using optimization process (Chanda, 2015;Harun and Geok, 2016;Laadila et al, 2017;Najafi et al., 2013;Turku et al, 2018;Government et al, 2021(a); Government et al, 2022). Therefore, the need for consideration of these factors to minimize material and processing cost, improve the properties by obtaining optimal values for the composite production (Chanda, 2015;Harun and Geok, 2016;Laadila et al, 2017;Najafi et al, 2013;Turku et al, 2018;Government et al, 2021(a); Government et al, 2022).…”

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confidence: 99%

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Effect of Particle Size and Filler Content on Mechanical Properties of Avocado Wood Flour-Low Density Polyethylene Composite

Government,

Ngabea

2023

jasem

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The application of natural material excavates from wood source in composite production has increased taking the merit of low cost, readily available and light weight. The objective of this study was to evaluate the effects of particle size and filler content on the mechanical properties of avocado wood flour-low density polyethylene composite (AWF-LDPE) modified with NaOH/CH3C00H using Response Surface Methodology. The influence of process parameters (size and weight of avocado wood flour (AWF)) on the properties (elongation, flexural strength, flexural modulus and impact strength) of the produced composite was evaluated. The AWF was injected at the size of particles from 20-100 mesh (850-150 µm) and flour content of 5-25 % wt into low-density polyethylene (LDPE) matrix to produce the composite of AWF-LDPE by the process of the injection molding machine. The optimization for the process parameters and mechanical properties of the composites was done using central composite design (CCD) of response surface methodology. The optimum condition for the factors and the properties of the composite were forecast with regression models of CCD. The ultimate process conditions for the process variables were 100 mesh size and 25 % wood flour content, while the properties were 4.8768 % elongation, 41.2921 MPa flexural strength, 0.6614 GPa flexural modulus and 83.384 KJ/m2 impact strength. The coefficient of determinations (R2) was close to unity with the maximum error of 0.09139 %. The values obtained from the AWF-LDPE composite at optimum condition indicated that it is recommended for suitable material for particle board in interior part of appliances and automobile application.

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Section: Resultssupporting

confidence: 77%

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confidence: 99%

mentioning

confidence: 99%

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Effect of Particle Size and Filler Content on Mechanical Properties of Avocado Wood Flour-Low Density Polyethylene Composite

Government,

Ngabea

2023

jasem

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“…Good prosthesis socket should have high tensile and flexural properties [5]. Polymer resins and synthetic fibres derived from non-sustainable source exhibits non-biodegradable, expensive in nature and produced dangerous gas emission [6][7][8] for many applications like prosthetic sockets [9]. However, natural reinforcing agents such as sisal, coconut, food gum, plantain, hemp, rattan, pineapple fibres, avogados pear wood, roselle to mention a few have been found to be potentially available, ecofriendly, renewable, less energy consumption and reinforcing agent of polymer resins [10 -12].…”

Section: Introductionmentioning

confidence: 99%

Optimization, Sodium Hydroxide and Plantain Fibres: Mechanical Properties of Unsaturated Polyester Composites for Transtibial Prosthetic Socket

Nwaiwu,

Ekezie,

Azeez

et al. 2024

KEM

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Low mechanical behaviors of natural fibres in the reinforcement of polymer composites have remain an issue of concern. This study is aimed at investigating the effect of NaOH treatment on the mechanical properties of plantain fiber for the transtibial prosthetic sockets made of polyester resin. Plantain fiber was extracted from the plantain bast using water retting techniques. The fibres were modified using alkaline treatment method of 5 – 25% for variable time of 30 to 150 minutes. It was optimized using 3-level Factorial design (3-LCD) of response surface methodology based on tensile properties of treated fibres. The polyester composites of plantain and glass fibers were prepared using hand-layup techniques. Instron Universal testing machine-3369 model was used to determine the tensile and impact properties of fibers and polyester composites. Rockwell hardness tester-RBHT/S-39 model was used to determine the hardness property. The optimum process conditions of 5 % NaOH for 119 minutes improved plantain fiber tensile strength, modulus, strain, energy, and extension by improved by 102.03, 208.07, 9.70, 210.52 and 205.73 %, respectively. The ultimate tensile strength and modulus was obtained at 10 and 12.5% fiber loading. The hardness and impact strength of NaOH modified unsaturated polyester composites was marginally more than 3.51 and 10.69% of glass fiber reinforced unsaturated composites, respectively, at 12.5% fiber loading. FTIR analysis revealed the improvement in mechanical properties. Thus, NaOH modified plantain fiber unsaturated polyester composites serves as a better alternative for making transtibial prosthetic socket.

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Modeling and simulation of tensile properties of r-LDPE/GSF composite using the response surface methododology

Government¹,

Okeke

Ibrahim³

et al. 2022

Materials Testing

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In this study, the ultimate tensile strength (UTS), elongation (ELG) and tensile modulus (TEM) of a recycled low-density polyethylene groundnut shell fiber composite (r-LDPE/GSF) were modeled and simulated when considered particle size (PS) and fiber content (FC) of groundnut shell fiber (GSF) by applying response surface techniques (RSM) for structural application. The deposit of recycled low-density polyethylene (r-LDPE) and GSF, an agro-waste, were combined in the production of r-LDPE/GSF composite at PS of 50–70 mesh (300–212 µm) and FC of 10–30 wt% of the GSF. The manufactured r-LDPE/GSF composite was tested for UTS, ELG and TEM and optimized by considering these process variables of GSF, PS and FC with RSM. The outcome indicated that at optimum condition, the UTS, ELG and TEM were 8.5072 MPa, 12.83% and 0.94007 GPa, respectively. The parameters at this point were PS and FC of 60.48 mesh (250 µm) and 30 wt%, respectively. The coefficient of determination (R 2) was close to 0.99. The percentage of relative errors between raw experimental reading and the RSM was <0.16. Based on the result of the work, the predicted RSM data on tensile properties of r-LDPE/GSF composite shows that is a potential engineering material for structural application.

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Modifications and Physicomechanical Behaviors of Roselle Fiber-HDPE Biocomposites for Biomedical Uses

Cited by 5 publications

References 23 publications

Effect of Particle Size and Filler Content on Mechanical Properties of Avocado Wood Flour-Low Density Polyethylene Composite

Effect of Particle Size and Filler Content on Mechanical Properties of Avocado Wood Flour-Low Density Polyethylene Composite

Optimization, Sodium Hydroxide and Plantain Fibres: Mechanical Properties of Unsaturated Polyester Composites for Transtibial Prosthetic Socket

Modeling and simulation of tensile properties of r-LDPE/GSF composite using the response surface methododology

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