Polymer Composite Materials

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Language: Английский

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Kenaf/glass fiber‐reinforced polymer composites: Pioneering sustainable materials with enhanced mechanical and tribological properties

Polymer Composites, Journal Year: 2024, Volume and Issue: 45(16), P. 14421 - 14447

Published: July 24, 2024

Abstract Hybrid kenaf/glass fiber reinforced polymer composites have emerged as promising structural materials, garnering significant attention due to their unique blend of natural kenaf fibers and synthetic glass fibers. However, despite potential, there remains a gap in the comprehensive understanding quasi‐static mechanical behavior, creep resistance, fatigue performance. This paper addresses this by presenting recent advancements studying these key properties hybrid composites. Studies reveal that combination results enhanced tensile, flexural, impact strengths compared individual Additionally, hybridization offers improved with reinforcing matrix against deformation under sustained loads. Furthermore, investigations into demonstrate resilience cyclic loading, contributing prolonged service life high‐stress environments. By elucidating interplay between fibers, review underscores potential various applications. The synergistic effects offer balance sustainability, performance, durability, making compelling choice for industries seeking lightweight, high‐performance materials which aligns sustainable development goals (SDGs) especially on Goal 12. Highlights In composite engineering, combining could cut production costs, yield promote green technology. Substituting part can enhance strength‐to‐weight ratio greater biodegradability current Quasi‐mechanical kenaf/glass‐based was optimal stacking sequences, filler addition, treatment. Failures be reduced hybridizing prevent elastic modulus. Enhanced tribological performance less damage microstructure via good interlocking matrix.

Language: Английский

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Innovative integration of pyrolyzed biomass into polyamide 11: Sustainable advancements through in situ polymerization for enhanced mechanical, thermal, and additive manufacturing properties

Additive manufacturing, Journal Year: 2023, Volume and Issue: 78, P. 103869 - 103869

Published: Sept. 1, 2023

The incorporation of pyrolyzed biomass, i.e., biochar, in polymers can be viewed as a sustainable approach that reduces bio-waste smart way. Herein, various biochar concentrations were integrated into the biobased polyamide 11 (PA11) matrix via situ polymerization. Scanning electron microscopy (SEM) micrographs demonstrated homogeneous dispersion up to 50 wt.% within PA11 matrix, free from any phase separation, particle agglomeration, or crack formation. Consequently, there was remarkable enhancement mechanical and thermal properties. Notably, tensile strength modulus increased by 35% 72%, respectively, while decomposition process significantly delayed with particles. Furthermore, viscoelastic performance exhibited substantial improvement upon addition filler These impressive results verified excellent interfacial compatibility achieved between owing utilization To demonstrate potential application these composites additive manufacturing, filament uniform diameter fabricated composite comprising biochar. It successfully employed material extrusion print complex object. resulting structure high shape fidelity, precise dimensions, no noticeable defects. This groundbreaking strategy not only highlights but also underscores efficacy polymerization fabricating high-performance PA11/biochar for demanding applications, including production manufacturing.

Language: Английский

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Biochar Production and Its Potential Application for Biocomposite Materials: A Comprehensive Review

Journal of Composites Science, Journal Year: 2024, Volume and Issue: 8(6), P. 220 - 220

Published: June 9, 2024

Biochar, an organic, porous, and carbon-rich material originating from biomass via pyrolysis, showcases compelling attributes intrinsic performances. Its appeal as a reinforcement for biocomposites, well its auspicious electrical properties, has gained more attention, makes biochar versatile candidate applications ranging energy storage to catalytic devices. This scientific review undertakes comprehensive exploration of biochar, spanning production methodologies, physicochemical intricacies, critical process parameters. The focus this paper extends optimization strategies properties tailored specific applications, with dedicated inquiry into diverse methods activation strategies. review’s second phase delves meticulous analysis key within biochar-based composites, emphasizing limitations unique performance characteristics crucial applications. By synthesizing substantial body research, aims catalyze future investigations by pinpointing areas that demand attention in upcoming experiments, ultimately the profound potential materials across technical domains.

Language: Английский

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(Bio)degradable Biochar Composites of PLA/P(3HB-co-4HB) Commercial Blend for Sustainable Future—Study on Degradation and Electrostatic Properties

Polymers, Journal Year: 2024, Volume and Issue: 16(16), P. 2331 - 2331

Published: Aug. 17, 2024

Interesting alternatives to expensive biodegradable polymers are their composites with natural fillers. The addition of biochar a blend poly(lactic acid) (PLA) and poly(3-hydroxybutyrate-co-4-hydroxybutyrate) was studied, the resulting materials were evaluated for properties changes during degradation. Introducing as filler brought noticeable improvement in electrostatic properties. Surface resistivity decreased from 3.80 × 1012 sample without 1.32 30% content. Degradation tests revealed distinct differences degradation profile due presence filler. Composites lower content displayed curling crack edges hydrolytic degradation, when reached 20 wt%, PLA loss accelerated. This study suggests that biochar-based have potential be used sustainable improved

Language: Английский

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The Effect of Biochar Addition on Thermal Stability and Decomposition Mechanism of Poly(butylene succinate) Bionanocomposites

Molecules, Journal Year: 2023, Volume and Issue: 28(14), P. 5330 - 5330

Published: July 11, 2023

In the present study, poly(butylene succinate) (PBSu) and its bionanocomposites containing 1, 2.5, 5 wt.% biochar (MSP700) were prepared via in situ melt polycondensation order to investigate thermal stability decomposition mechanism of materials. X-ray photoelectron spectroscopy (XPS) measurements carried out analyze surface area a sample PBSu/biochar nanocomposites. From XPS, it was found that only physical interactions taking place between PBSu matrix nanoadditive. Thermal stability, kinetics, pristine nanocomposites thoroughly studied by thermogravimetric analysis (TGA) pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS). TGA thermograms depicted all materials had high since their started at around 300 °C. However, results indicated slight reduction because potential catalytic impact biochar. Py-GC/MS employed examine, more detail, degradation filled with products identified after pyrolysis 450 °C, pathway took mainly β-hydrogen bond scission, which is similar for neat PBSu. higher content (5 wt.%), some localized differences intensity peaks specific could be recognized, indicating α-hydrogen scission also place. A study crucial examine if new fulfill requirements further investigation mulch films agriculture or electronics as possible applications.

Language: Английский

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Structure-properties relationships in new polymer nanocomposites based on the renewable poly(butylene succinate) filled with low amounts of nanoparticles of 1-3D geometries

Polymer, Journal Year: 2024, Volume and Issue: 296, P. 126841 - 126841

Published: Feb. 23, 2024

Language: Английский

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Biochar/poly(aniline-pyrrole) modified graphite electrode and electrochemical behavior for application in low-cost supercapacitor

Arabian Journal of Chemistry, Journal Year: 2024, Volume and Issue: 17(9), P. 105938 - 105938

Published: July 26, 2024

An attempt is made to use biochar (BC), a carbon rich low-cost green material, as platform house conducting polymer for fabricating stable graphite electrodes application in next generation supercapacitor devices. Here, BC first prepared from sucrose solution using simple hydrothermal method. The seeded chemical oxidative copolymerization of aniline and pyrrole then carried out at identical comonomer weight ratio seed particles. Two different mixed monomer (w/w) ratios (1:0.7 1:1) have been used the composites are named BC/P(Ani-Py)1:0.7 BC/P(Ani-Py)1:1 respectively. Independent composition, both composite particles spherical. smooth homogeneous surface turned heterogeneous after formation. average size 2.56 µm those 1:0.7 1:1.0 2.72 2.90 Cyclic voltammetry (CV), galvanostatic charging discharging (GCD), electrochemical impedance spectroscopy (EIS) evaluate properties. Comparatively, modified electrode exhibited highest capacitance value (274.27 F g−1 current density 1.0 A/g) capable acting electrode. A long-term cycling test 5.0 A/g displayed retention 96.6 % 1000 cycles charge discharge, indicating very good cycle stability.

Language: Английский

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Unlocking Innovation: Novel Films Synthesized and Structurally Analysed from Poly (l-lactide-co-ethylene adipate) Block Copolymers Blended with Poly(lactic acid)

Polymer Testing, Journal Year: 2025, Volume and Issue: unknown, P. 108707 - 108707

Published: Jan. 1, 2025

Language: Английский

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Synthesis and Characterization of PLA/Biochar Bio-Composites Containing Different Biochar Types and Content

Polymers, Journal Year: 2025, Volume and Issue: 17(3), P. 263 - 263

Published: Jan. 21, 2025

A series of poly(lactic acid) (PLA)/biochar (BC) bio-composites filled with low amounts (1–5 wt%) BC were prepared and characterized. The synthesis involved the in situ ring-opening polymerization (ROP) lactide presence two different types named SWP550 SWP700, having been produced by pyrolysis softwood pellets at temperatures, 550 700 °C, respectively. characterized complementary techniques. successful PLA PLA/BC was directly demonstrated formation new bonds, most probably between BC. Indirect evidence for that obtained systematic molar mass reduction found transmission electron microscopy (TEM) micrographs to be well dispersed nanosize level, indicating is a technique quite efficient producing finely additive. molecular dynamics mapping performed here via dielectric spectroscopy, moreover, first time these systems. strong interactions (due grafting) led deceleration segmental mobility (elevation Tg) despite opposite effect expected decrease content increasing. In addition, same chain-length are responsible slight suppression PLA’s crystallizability. effects slightly stronger SWP700 as compared SWP550. crystal structure rather similar unfilled matrix bio-composites, whereas, based on overall data, semicrystalline morphology tighter bio-composites. thermal stability decomposition kinetics also thoroughly studied. All materials exhibit good resistance degradation. Additionally, mechanical properties evaluated tensile testing enhanced biochar contents decreasing thereafter due weight larger contents.

Language: Английский

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