A Progress on Nanocellulose as Binders for Loose Natural Fibres

This work presents experimental findings on the stability of a 2D foam confined in a hard cell. The foam's lifetime before breakage increases with bubble size, and introducing a defect stabilizes the foam for a few days. Bubble deformations induced by the defects contribute to this stabilization. The study also investigates disorder evolution around defects in a hexagonal lattice. Topological class distributions show an increase in their second moment with some cases showing late-stage decrease. The findings support simulations and offer insights into coarsening and transient phenomena in foams. The research investigates the topological correlations and variations from expected patterns, emphasizing the impact of the particular foam model employed. In addition, the results provide qualitative support for scaling states and suggest generality in defect behavior, and indicate a significant deviation from the expected stability patterns predicted by existing models.

Section: Methodsmentioning

confidence: 99%

Exploring the Topological Correlations within Two-Dimensional Foam Structures

A. AbdelKader,

E.A. Dawi,

A. Haj Ismail

2024

“…Based on this information it is easy to say that EDM is between that fabrication processes. Moreover, a lot of work has been reported by several researchers in the field of fabrication of different composites including MMC, Fiber-based, and polymers [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27] .…”

Section: Diffusion Bondingmentioning

confidence: 99%

Fabrication and Machining of Metal Matrix Composite Using Electric Discharge Machining: A Short Review

Jain¹,

Kumar²,

Shrivastava³

2021

Metal Matrix composite is a metal reinforced with two or more constituents which can be any other materials either metal or non-metal. Metal matrix composites (MMCs), which are inherently intelligent, are lightweight and high-performance, ever-expanding materials. The structural and functional properties of these materials may be modified by industrial requirements. Researchers and the industry are attracted by the process technology used in the production and processing of these products. The hybrid-electric discharge process for MMCs is a promising and the most effective nonconventional process. It has greater expertise in manufacturing complex shapes with greater precision. This paper gives an updated analysis of the development and advantages of various routes for composite manufacturing and machining. It reports on several realistic analyzes and study results, including various manufacturing and processing problems for MMC Since the last few years, hybrid electrical discharge machining has been an active field of research in critical and nonconventional machining. This paper includes annual research in production, traditional machining, unconventional machining, and hybrid MMC machining. The final part of the paper addresses conclusions and future scope.

“…Natural fibers are being used to reinforce thermoplastics, cementitious materials, and other materials needed in today's society 5,6) . Fibers such as sisal, jute, cotton, bamboo, or bagasse have been used as reinforcement in materials with interesting results on the mechanical properties of the matrixes 1,3,5,[7][8][9] . Among this group, one with growing interest is the fiber from bamboo or Guadua Angustifolia Kunth 1,7,[10][11][12][13][14] .…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Ecuadorian Bamboo Fiber-Low-Density Polyethylene (LDPE) Biocomposites

Ordonez¹,

Baykara²,

Riofrio³

et al. 2023

Synthetic plastics have several concerns for the environment, such as their impact on climate change, their long degradation time, or their degradation to microplastics that threaten animal life in the sea. The application of natural fibers as reinforcement in synthetic polymeric matrixes has several advantages in properties such as low density, lower cost of production, biodegradability, and a reduction of the environmental impact in the polymer industry. In this study, the Ecuadorian Guadua Angustifolia Kunth fiber was extracted and treated physically and chemically for its use as reinforcement in composite preparation. Maleic anhydride was used as a coupling agent to improve the interaction between the natural fiber and the low-density polyethylene (LDPE) polymeric matrix. The composite production was done using different bamboo particle loading (1-5% w/w) at a constant particle size (150 µm). Chemical, physical, and mechanical properties were evaluated to characterize the fiber and biocomposites. The chemical treatment of the fiber with 2% of NaOH showed a reduction of the lignin content confirmed by Fourier-Transform infrared spectroscopy. A total of ~39% mass loss related to the lignin, waxes, and other organic content was reached. In addition, a reduction in the density from approximately 0.87 to 0.66 was shown when increasing the content of bamboo in the composite. In the same way, the crystallinity was reduced by 3%. The composite with 1% bamboo presents a tensile strength of 10,66 MPa. The use of bamboo fiber in the biocomposites reduces the global warming potential concerning the increasing amount of fiber.