Effect of Graphene Addition on Bacterial Cellulose-Based Nanocomposite

Maulana, Jibril; Suryanto, Heru; Aminnudin, Aminnudin

doi:10.17977/um016v6i22022p107

Cited by 8 publications

(9 citation statements)

References 28 publications

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“…FTIR testing was carried out at a wavelength of 4000 -400 cm -1 [25]. Figure 6 illustrates the result of the FTIR test on the nanoparticle additive samples.…”

Section: Functional Groups Of Nanoparticlesmentioning

confidence: 99%

Tribology Characteristic of Ball Bearing SKF RB-12.7/G20W using SAE 5W-30 Lubricant with Carbon-Based Nanomaterial Addition

Puspitasari,

Ayu Permanasari,

Ilman Hakimi Chua Abdullah

et al. 2023

Tribol. Ind.

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The thermophysical, rheological, and tribological properties in lubricant are essential for preserving the engines, power steering systems, and engine components from damage caused by friction and wear. The incorporation of nano-sized particles into lubricating oils has been reported to enhance these properties. Therefore, this study explores the impacts resulting from the incorporation of graphene, multiwalled carbon nanotubes (MWCNT), double-walled carbon nanotubes (DWCNT), and single-walled carbon nanotubes (SWCNT) at a quantity of 0.04 grams into the SAE 5W-30 base oil. These nanoparticles were synthesized using a two-step method, resulting in nanolubricants. The addition of carbon-based nanomaterials increases the density and decreases the viscosity of the base lubricant. The flow of nanolubricants exhibits non-Newtonian shear thinning behavior during the test at elevated temperatures. The results of the four-ball tribo-tester test reveal the increase of Coefficient of Friction (CoF) values and the extent of wear scar area. Further, the Scanning Electron Microscopy (SEM) analysis was employed to observe the wear morphology of the nanolubricants on the SKF RB-12.7/G20W ball bearing. Its results indicate a prevalence of groove-type wear as compared to conventional lubricants.

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“…FTIR testing was carried out at a wavelength of 4000 -400 cm -1 [25]. Figure 6 illustrates the result of the FTIR test on the nanoparticle additive samples.…”

Section: Functional Groups Of Nanoparticlesmentioning

confidence: 99%

Tribology Characteristic of Ball Bearing SKF RB-12.7/G20W using SAE 5W-30 Lubricant with Carbon-Based Nanomaterial Addition

Puspitasari,

Ayu Permanasari,

Ilman Hakimi Chua Abdullah

et al. 2023

Tribol. Ind.

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“…PLA with chloroform solvent showed diffraction peaks at 17° and 19° [30]. PLA with chloroform solvent made PLA-nanographite without extrusion have a crystalline structure because of the solvent nature of Chloroform, which interacts with the polymer chain, making the polymer-solvent interaction stronger and forming a crystal structure.…”

Section: A Structure Of Nanocomposite Filamentmentioning

confidence: 99%

“…Another cause of the loss of peaks and a decrease in crystallinity is the extrusion process being too fast so that the crystallinity of the PLAnanographite after the extruder becomes amorphous. According to Liu et al [30], producing higher crystallinity requires a long holding temperature.…”

Section: A Structure Of Nanocomposite Filamentmentioning

confidence: 99%

Analysis of Structure and Functional Group of Filament Product-Based PLA/Nanographite Nanocomposite

Suryanto,

Aminnudin,

Bintara

et al. 2023

JMEST

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In many polymer compounds, Polylactic Acid (PLA) is a polyalcohol material that has the most potential material which is potent for biological degradation. They have been applied as filaments in additive manufacturing. The PLA properties can be modified by adding nanomaterials such as graphite nanoplatelets. This study aims to obtain the characteristics of PLA-based filament nanocomposite with nanographite reinforcement. Methods include exploration research to obtain nanocomposite filament with PLA and 1% of nanographite. The mixing process of nanographite in PLA solution with chloroform solvent and then the extrusion process of nanocomposite using a single extruder. The product comparison before and after the extrusion process was analyzed using X-ray diffraction and Fourier Transform infrared. Diffractogram results indicate that the original PLA structure is amorphous, and after mixing using nanographite, peaks of nanographite appeared clearly. After the extrusion process, some peaks at 16.7° and 19.1° disappeared, but only a peak 26.6° appeared in the diffractogram. Extrusion makes the structure change. Functional group analysis confirms that some reactions occurred so that many peaks were removed, and several new peaks were observed. It indicates that the extrusion process of PLA/nanographite results in different structures and functional groups that indicate a change in its properties.

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“…Because of their high strength, rigidity, and low density, cellulose-based biofibers such as banana, pineapple leaf, coir, cotton, hemp, hemp, kenaf, sisal, and wood fibers are commonly used to reinforce plastics. Agricultural crop waste has the potential to become a valuable source of natural fiber due to its favorable properties and characteristics [3], [4].…”

Section: Introductionmentioning

confidence: 99%

Effect of the Homogenization Process on Titanium Oxide-Reinforced Nanocellulose Composite Membranes

Mahsuli,

Larasati,

Aminnudin

et al. 2023

JMEST

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Indonesian pineapple production can reach 200 tons per day; however, pineapples generate a significant amount of waste. Pineapple peel waste can be used to make membranes. Composite membranes containing TiO2 have dense properties, low porosity, and increase the mechanical strength of the cellulose sheet. This research uses various ultrasonic homogenizers to homogenize the distribution of nanocellulose and TiO2 (50% and 100% power with 30, 60, and 90 minutes). The casting method is used to shape the membrane. The SEM test shows that the higher the power used and the longer the sonication time, the less agglomeration of about 1.63%/ cm2 and a thickness of 16.56 µm. Identification of X-ray diffraction (XRD) results shows that sonication treatment for too long causes the peak at an angle of 25o to disappear. The analysis revealed no new peaks in the diagram pictures that were found using Fourier Transform Infrared Spectroscopy (FTIR) to analyze the functional groups, but it is known that changes occur in the O-H bonds of cellulose and C=C. The 50% sample with a power of 60 minutes had the lowest roughness value of 1.008 µm. Furthermore, as the power and time on the sample are increased, the roughness increases.

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Effect of Graphene Addition on Bacterial Cellulose-Based Nanocomposite

Cited by 8 publications

References 28 publications

Tribology Characteristic of Ball Bearing SKF RB-12.7/G20W using SAE 5W-30 Lubricant with Carbon-Based Nanomaterial Addition

Tribology Characteristic of Ball Bearing SKF RB-12.7/G20W using SAE 5W-30 Lubricant with Carbon-Based Nanomaterial Addition

Analysis of Structure and Functional Group of Filament Product-Based PLA/Nanographite Nanocomposite

Effect of the Homogenization Process on Titanium Oxide-Reinforced Nanocellulose Composite Membranes

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