Structure-property correlations study in biochar-enhanced polyamide composites for sustainable materials development

Composites Part B Engineering, Journal Year: 2024, Volume and Issue: 286, P. 111809 - 111809

Published: Aug. 29, 2024

This study explores the synthesis and characterization of polyamide/biochar composites via in situ polymerization 12-aminolauric acid with varying biochar concentrations. The motivation behind this research is to enhance properties polyamide 12 (PA12) by integrating biochar, a sustainable material derived from biomass, improve both performance environmental impact. A detailed structure-property correlation analysis was conducted assess effects on PA12's morphology, mechanical behavior, crystallinity, thermal stability, viscoelastic performance, sustainability. Key findings include successful PA12 synthesis, confirmed FTIR 1H NMR spectroscopy. Increased content led decrease molecular weight an increase crystallinity 27 % 38 %, suggesting enhanced nucleation effects. SEM showed excellent dispersion compatibility within matrix, leading significant improvements tensile strength (from ± 1 MPa 54 2 MPa) modulus 745 30 2055 65 MPa). Rheological tests demonstrated shear-thinning facilitating effective extrusion-based 3D printing complex object 50 wt% biochar. life cycle assessment revealed substantial benefits, including net reduction 1.83 kg·CO₂ equiv.·kg⁻1 due use wood pyrolysis. These highlight potential PA12/biochar as environmentally structural materials, combining functional ecological advantages.

Language: Английский

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Valorization of Waste Biomass Towards Biochar Production - Characterization and Perspectives for Sustainable Applications in Serbia

Environmental Technology & Innovation, Journal Year: 2025, Volume and Issue: unknown, P. 104043 - 104043

Published: Jan. 1, 2025

Language: Английский

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Experimental analysis of biochar filler effects on the mechanical, water absorption, and viscoelastic properties of novel caryota fiber reinforced polymeric composites: The role of biodegradable reinforcements concentration

Polymer Composites, Journal Year: 2025, Volume and Issue: unknown

Published: March 27, 2025

Abstract The natural fibers and waste biomass used in polymer composites are identified as a potential reinforcement that is highly sought after making sports goods, household furniture, packaging of foodstuffs, the transport industry owing to their lightweight properties. strength composite enhanced by adopting hybridization techniques further enlarge its application horizon various fields. This work investigates effects micro filler made almond biochar (ABC) caryota fiber (CF) loading on mechanical, morphological, water absorption, viscoelastic behaviors epoxy reinforced with for structural applications. CF ABC at varied concentrations (10–30 wt.%) (4–12 wt.%), prepared CF/ABC/epoxy through hand layup method. Mechanical evaluations, which include flexural, impact, tensile strengths, show 8 wt.% 20 combination increases flexural strength. Comparing (TS) CF20/epoxy ABC8/epoxy composites, highest TS CF20‐ABC8 98 MPa, 37.2% 50.9% greater, respectively. absorption property shows an increasing trend content exposure time. experimental results validated optimum testing employing response surface methodology (RSM), highlighting improve fiber‐reinforced (NFRCs). addition into matrix also enhances dynamic mechanical modulus. particle laminates glass transition temperature (Tg). Highlights increased CF/matrix adhesion CF/epoxy RSM model was validate Addition modulus CF/ABC reinforcements damping

Language: Английский

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Industrial hemp: A comprehensive analysis from hemp seeds to a sustainable alternative raw material for textiles and industrial applications

Tekstilna industrija, Journal Year: 2025, Volume and Issue: 73(1), P. 4 - 25

Published: Jan. 1, 2025

Hemp (Cannabis sativa L.) has historically played a significant role in textile and industrial applications. However, its production declined due to regulatory constraints competition from other fibers. In recent years, hemp re-emerged as sustainable alternative rapid growth, minimal water chemical requirements, exceptional durability. This study provides comprehensive analysis of cultivation, fiber properties, expanding industries such textiles, construction, biocomposites. Additionally, life cycle assessment (LCA) is conducted evaluate hemp's environmental impact comparison conventional materials like cotton synthetic The findings highlight potential promote practices reduce the ecological footprint various industries.

Language: Английский

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Methodology of Biochar Extraction and the Composite Samples Preparation Prosopis Juliflora Biochar-Based Hybrid Composites: Mechanical Property Assessment and Development Prospects

Cleaner Engineering and Technology, Journal Year: 2025, Volume and Issue: unknown, P. 100955 - 100955

Published: April 1, 2025

Language: Английский

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Exploring the mechanical behaviour and microstructure of AA7075/B4C/ZrN hybrid composite fabricated through powder metallurgy techniques

Deleted Journal, Journal Year: 2024, Volume and Issue: 245(1)

Published: Aug. 24, 2024

The matrix and the reinforcement both are lifelines of a composite, their inherent properties very significant in determining applicability toward various industrial applications, due to fact that it directly impacts strength, durability, performance material under different service conditions. This paper presents mechanical as well microstructural behavior AA7075/B4C/ZrN hybrid composites fabricated by using powder metallurgy technique. dispersion plays vital role activation load-sharing mechanism. Apart from enhancing properties, porosity reduction is indispensable design processing optimization. Due addition ZrN AA7075/B4C XRD analysis showed Al₃Zr compound was formed, which contributed improved composite up some point. maximum compression strength approximately 185 MPa achieved at with 2 wt% 8 B4C, while hardness 113 HV occurred 3 B4C. Higher contents B4C further above created an impact for extra pores along high scale intermetallic compounds, which, near destroy eventually formed voids weak interfaces. It these results prove optimized its better controlled porosity, be quite fit high-strength aerospace automotive applications durability pertinent.

Language: Английский

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Mechanical, thermal, and water absorption properties of HDPE/barley straw composites incorporating waste rubber

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

Published: Oct. 24, 2024

This study investigates the mechanical, thermal, and water absorption properties of high-density polyethylene (HDPE) composites filled with barley straw varying amounts waste rubber. The research aims to develop sustainable materials that repurpose agricultural industrial while addressing resource scarcity management challenges. Composites were prepared using a twin-rotor mixer hydraulic press, rubber content from 0 20 wt%. Mechanical evaluated through tensile testing, thermal behavior was analyzed TGA, DTG, DSC, long-term measured. Results show increasing 20% led decrease in strength (11.3 8.9 MPa) modulus (1760 790 MPa), relative extension increased (2.4-5.9%). Thermal analysis revealed slight reduction onset degradation temperature (270 °C 240 °C) char residue (8-18%) higher content. Water decreased significantly, 12 13% 6-7% after 600 h immersion, as increased. These findings demonstrate incorporating into HDPE/barley results enhanced flexibility resistance at cost some stiffness. In conclusion, this offer clear pathway for development polymer have broad potential applications across industries like construction, marine infrastructure, automotive, packaging. By replacing traditional, resource-intensive eco-friendly alternatives, these not only provide functional benefits but also support global efforts toward environmental conservation.

Language: Английский

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Development of sustainable and high-performance polymer composite rebar using vegetable waste biochar and areca fiber as reinforcement materials for green construction

Polymer Bulletin, Journal Year: 2024, Volume and Issue: 81(17), P. 16057 - 16075

Published: Aug. 17, 2024

Language: Английский

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Development of eco-friendly FRP rebar building material with chopped pineapple fiber and Si3N4 bioceramic vinyl ester

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

Published: Nov. 6, 2024

Language: Английский

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Examine the hardness of kenaf fiber/coir pith-based hybrid composites against coir pith-based composites

Deleted Journal, Journal Year: 2024, Volume and Issue: 245(1)

Published: Sept. 3, 2024

This investigation aimed to assess the impact of kenaf fiber on hardness properties natural composites derived from coir pith, with a focus their potential as sustainable components in automotive industry. The control group consisted 15 wt% pith powder, while experimental included powder along specified number layers mat. study sought understand implications for hybrid composite, especially relation increase layers. Sample size calculations, facilitated by Clincalc.com, utilized parameters 80% power, 0.05 significance level, and 95% confidence level. Each received 20 samples, resulting total sample 40. Noteworthy disparities were observed between groups. exhibited 42 shore D, whereas group, particularly 3 fiber-based showcased significantly higher 53 D. Statistical analysis p-value less than validated these findings. In practical context, suggested surface treatment an alkaline environment is put forth specific aim augmenting reinforced kenaf/epoxy composites. proposed improvement opens avenues enhanced utilization various applications within materials industry, where key factor, such durable structural wear-resistant surfaces.

Language: Английский

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