Recent Advances in Natural Fiber Reinforced Metal/Cement/Polymer Composites: An Overview of the Structure-Property Relationship for Engineering Applications.

Hybrid Advances, Journal Year: 2025, Volume and Issue: unknown, P. 100378 - 100378

Published: Jan. 1, 2025

Language: Английский

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Optimization and Comparative Analysis of micro-perforated panel sound absorbers: A study on structures and performance enhancement

Measurement, Journal Year: 2024, Volume and Issue: 236, P. 115123 - 115123

Published: June 21, 2024

Language: Английский

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The Alkaline Treatment and its Influence on the Physicomechanical Properties of Plantain Pseudostem Fibers - A Comparative Study of Treated and Untreated Fibers

Heliyon, Journal Year: 2025, Volume and Issue: 11(2), P. e41843 - e41843

Published: Jan. 1, 2025

Fibers were extracted from the pseudostem of plantain variety Hartón, belonging to order Zingiberales, family Musaceae, genus Musa, species Musa paradisiaca. The fibers exposed alkaline treatment improve their physicomechanical properties for use as reinforcement in green composites. NaOH solutions 4 %, 5 and 6 % by weight prepared. immersed 2 h each solution. washed with acetic acid remove residues dried at room temperature. Weight loss lignin, cellulose, hemicellulose content evaluated. FTIR, tensile, elongation tests performed. SEM images EDS mapping allowed conclude phenomena that occurred treatments. untreated obtained a tensile strength 37.23 MPa, contrast 104.26 MPa treated It was concluded partial elimination impurities waxes improved mechanical behavior 180 %. Regarding elongation, solution best result 3.7 determined lignin favors 48 Excessive removal found cause fibril separation detachment. Considerable contraction vascular bundles occurred. Roughness surface topography improved.

Language: Английский

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Exploring the Potential of Posidonia oceanica Fibers in Eco-Friendly Composite Materials: A Review

Journal of Marine Science and Engineering, Journal Year: 2025, Volume and Issue: 13(1), P. 177 - 177

Published: Jan. 19, 2025

The growing demand for sustainable materials has driven the exploration of natural fibers as eco-friendly alternatives to synthetic reinforcements composites. This study investigates potential Posidonia oceanica, an abundant marine biomass, which is often be stacked on backshore and used so far energy recovery low-value applications, a filler possible reinforcement in cementitious polymer Most applications are concentrated Mediterranean area focused construction industry. However, its introduction composites, especially source cellulose or combination with use bio-based matrices, can also proposed. With this aim, physical chemical properties oceanica need characterized, their compatibility various matrices needs evaluated. Experimental results demonstrate that fibers, when treated alkali silane, combining both treatments, exhibit mechanical quite comparable other namely those obtained from grass species. As any type waste, yet more interest wide accumulation over coastal line, composites may contribute reducing environmental footprint these materials, aligning circular economy principles. review highlights dual benefits utilizing biomass by advancing material sustainability while not being detrimental waste management.

Language: Английский

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Hierarchical Natural Fibre Composites Based on Cellulose Nanocrystal-Modified Luffa Structures for Binderless Acoustic Panels

Polymers, Journal Year: 2025, Volume and Issue: 17(3), P. 281 - 281

Published: Jan. 22, 2025

Effective sound absorption materials are essential for mitigating noise pollution in urban and industrial environments, which pose serious health risks to humans. This work develops a hierarchical natural fibre binderless composite based on porous luffa, modified with localised cellulose nanocrystals (CNCs), application acoustic panels. The impedance tube approach was employed systematically evaluate performance across range of frequencies. Adding 3 wt.% 7 CNCs the luffa structure improved its absorption, especially mid-to-high frequency areas. panels 3% CNC exhibited most balanced various thicknesses, while 7% CNC–luffa demonstrated excellent averages all ranges, although increased rigidity reflective tendencies were observed. nano-modification successfully maintained coefficient reduced panel thickness. study establishes CNC-modified composites as sustainable efficient alternative conventional materials, leveraging renewable resources lightweight characteristics. These findings highlight potential CNC-luffa mitigation, paving way environmentally conscious solutions.

Language: Английский

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Experimental and numerical evaluation of the influence of voids on sound absorption behaviors of 3D printed continuous flax fiber reinforced PLA composites

Composites Science and Technology, Journal Year: 2024, Volume and Issue: 255, P. 110720 - 110720

Published: June 15, 2024

Language: Английский

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Exploring Chemical and Physical Advancements in Surface Modification Techniques of Natural Fiber Reinforced Composite: A Comprehensive Review

Journal of Natural Fibers, Journal Year: 2024, Volume and Issue: 21(1)

Published: Oct. 31, 2024

Language: Английский

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Synthesis and characterization of Borassus flabellifer flower waste-generated cellulose fillers reinforced PMC composites for lightweight applications

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Nov. 18, 2024

Language: Английский

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Extraction and characterization of novel biomass-based lignocellulosic fiber Ficus benghalensis bark for potential green material applications

Biomass Conversion and Biorefinery, Journal Year: 2024, Volume and Issue: unknown

Published: June 15, 2024

Language: Английский

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Gradient Pore-Structured Polymeric Fibrous Aerogels for Effective Low-Frequency Noise Absorption

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: 6(16), P. 9995 - 10005

Published: Aug. 8, 2024

Traffic and industry noise have been considered the most disturbing pollutants that induce severe health hazards to humans. Porous materials are commonly used for sound-mitigating applications; however, realizing high elasticity sound-absorption ability at low frequencies has remained a great challenge. Herein, we report strategy create gradient-structured ultralight weight elastic polymer-based fibrous aerogels by layer-by-layer assembly of polymer micro- nanofibers in different combinations, utilizing step-by-step directional freezing freeze-drying methods. This approach allowed us integrate poly(ethylene terephthalate) microfibers (MF) polyvinylidene fluoride (NF) combination with MF/(MF NF blend) MNF/NF units shows best reduction coefficient 0.66. Compared individual MF, MNF, NF, show better frequencies. The exhibit ultralightweight, elasticity, good mechanical properties. successful fabrication these fascinating structures may provide innovative prospects utilization plastics production low-frequency absorbers.

Language: Английский

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