Influence of particle size and particle loading on mechanical properties of silicon carbide–reinforced epoxy composites

Sanya, Olajide Tunmilayo; Oji, Babatunde; Owoeye, Seun Samuel; Egbochie, Ehis Joel

doi:10.1007/s00170-019-04009-1

Cited by 30 publications

(14 citation statements)

References 11 publications

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“…In this study, the PLA waste was used to fabricate new filament. A wide range of materials, including high-density polyethylene (HDPE) [ 46 ], PA, ABS, Nylon [ 47 ], polypropylene (PP) [ 48 ], and glass-filled nylon [ 49 ] can also be recycled to manufacturing new filament. Metallic powders, such as copper powder [ 50 ] or aluminum powder [ 51 ] can also be added in the manufacturing process to improve the physical properties of the fabricated filament.…”

Section: Resultsmentioning

confidence: 99%

Optimization of Process Parameters for Fabricating Polylactic Acid Filaments Using Design of Experiments Approach

2021

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The amount of wasted polylactic acid (PLA) is increasing because 3D printing services are an increasingly popular offering in many fields. The PLA is widely employed in the fused deposition modeling (FDM) since it is an environmentally friendly polymer. However, failed prototypes or physical models can generate substantial waste. In this study, the feasibility of recycling PLA waste plastic and re-extruded it into new PLA filaments was investigated. An automatic PLA filament extruder was first developed for fabricating new PLA filaments. This paper also discusses the process, challenges, and benefits of recycling PLA waste plastic in an effort to fabricate new PLA filaments more sustainable. It was found that it was possible to fabricate PLA filament using recycled PLA waste plastic. The production cost is only 60% of the commercially available PLA filament. The tensile strength of the developed PLA filament is approximately 1.1 times that of the commercially available PLA filament. The design of experiments approach was employed to investigate the optimal process parameters for fabricating PLA filaments. The most important control factor affecting the diameter of PLA filament is the barrel temperature, followed by recycled material addition ratio, extrusion speed, and cooling distance. The optimal process parameters for fabricating PLA filament with a diameter of 1.7 mm include the barrel temperature of 184 °C, extrusion speed of 490 mm/min, cooling distance of 57.5 mm, and recycled material addition ratio of 40%.

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Section: Resultsmentioning

confidence: 99%

Optimization of Process Parameters for Fabricating Polylactic Acid Filaments Using Design of Experiments Approach

2021

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“…Similar stress-strain graphs were obtained in previous work on similar fillers. 48,49 The variation of compression modulus of the composites as a function of weight fraction is illustrated in Figure 6. With an increment in the particle loading, the compressive modulus of the developed composites increased, with a maximum value of 2749 MPa for LYB 5 , where a percentage increase of about 40% was observed compared to LYB 0 .…”

Section: Physical Propertiesmentioning

confidence: 99%

Effect of the content of silane-functionalized boron carbide on the mechanical and wear performance of B₄C reinforced epoxy composites

Bhatia

Khan

Angra

2021

High Performance Polymers

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This article presents the mechanical, physical, and tribological properties of the boron carbide (B4C) reinforced epoxy matrix composites (BEMCs). The BEMC samples were prepared with various B4C concentration of 0%, 1%, 2%, 3%, and 5%. B4C particles were treated with a silane coupling agent to ensure efficient adhesion with epoxy. The influence of a range of parameters (particle loading, sliding speed, sliding distance, and normal load) on the wear and friction behavior of BEMCs were evaluated by conducting wear tests under dry sliding conditions on a pin-on-disc wear test set-up. The addition of B4C to the epoxy polymer improved the wear resistance of the composites. Maximum wear resistance and coefficient of friction were observed for the composite with the highest percentage of B4C (5%). The specific wear rate was reduced on increasing load and sliding distance and increased with the sliding velocity. Mechanical properties including compression strength, flexural strength, and impact energy, along with physical properties such as density and hardness, were also evaluated. B4C particles improved the hardness, density, flexural and compression strength, and impact resistance of the composites. Scanning electron microscope (SEM) analysis of the worn-out surfaces and flexural fractured surfaces was carried out to predict the possible wear and fracture mechanisms. Micro-ploughing, abrasion, and adhesion were the wear mechanisms in BEMCs. Under the flexural loads, particulate de-bonding, pull-out, and brittle fracture of the matrix were the governing failure mechanisms.

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“…As a contrast, the physical method has been proved to be high efficiency in improving the thermal conductivity by filling with high thermal conductivity filler. Highly thermally conductive filler usually includes inorganic materials, carbon materials and metal powder, such as silicon carbide, [17][18][19] alumina, 3,[20][21][22][23] boron nitride, [24][25][26][27][28][29][30][31] aluminum nitride, [32][33][34] silicon nitride, 35,36 graphene, [37][38][39] graphite, 40,41 carbon nanotubes, 42,43 copper 44 or a variety of particles mixtures. 45 Wang et al 46 prepared three-dimensional CF/C/Ni/ epoxy composites by vacuum assisted liquid phase impregnation.…”

Section: Introductionmentioning

confidence: 99%

The synergistic effect of irregular alumina and round plates boron nitride binary‐particle system on the thermal conductivity of epoxy composites

Lin

et al. 2021

J of Applied Polymer Sci

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As the main encapsulation material, epoxy resin has an urgent need to obtain higher thermal conductivity. So how to improve the thermal conductivity of epoxy resin is very important. In this work, a novel strategy is proposed that the irregular alumina (i-Al 2 O 3 ) and the round plate boron nitride (h-BN) are integrated into epoxy resin to enhance the thermal conductivity. When the total amount of filler is 40%, and the volume ratio of auxiliary filler h-BN and the basic filler i-Al 2 O 3 is 6: 34，The thermal conductivity of the epoxy composites is significantly increased 709% higher than that of pure epoxy resin. The roles of the main filler i-Al 2 O 3 and the auxiliary filler h-BN in epoxy composites system were investigated. A possible mechanism was established that the h-BN connects i-Al 2 O 3 to generate the heat conduction network. The blending of irregular particles and round plate method proposed in this work is a new avenue, which meets the need of industrialized design and fabricating, making an achievement of obtaining a kind of epoxy composites with a high thermal conductivity and excellent comprehensive properties.

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Influence of particle size and particle loading on mechanical properties of silicon carbide–reinforced epoxy composites

Cited by 30 publications

References 11 publications

Optimization of Process Parameters for Fabricating Polylactic Acid Filaments Using Design of Experiments Approach

Optimization of Process Parameters for Fabricating Polylactic Acid Filaments Using Design of Experiments Approach

Effect of the content of silane-functionalized boron carbide on the mechanical and wear performance of B₄C reinforced epoxy composites

The synergistic effect of irregular alumina and round plates boron nitride binary‐particle system on the thermal conductivity of epoxy composites

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Influence of particle size and particle loading on mechanical properties of silicon carbide–reinforced epoxy composites

Cited by 30 publications

References 11 publications

Optimization of Process Parameters for Fabricating Polylactic Acid Filaments Using Design of Experiments Approach

Optimization of Process Parameters for Fabricating Polylactic Acid Filaments Using Design of Experiments Approach

Effect of the content of silane-functionalized boron carbide on the mechanical and wear performance of B4C reinforced epoxy composites

The synergistic effect of irregular alumina and round plates boron nitride binary‐particle system on the thermal conductivity of epoxy composites

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Effect of the content of silane-functionalized boron carbide on the mechanical and wear performance of B₄C reinforced epoxy composites