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Synthesis Of Bio-Derived Carbon Reinforced LDPE Composite From Waste Plastic And Its Characterization For Possible Applications
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Researchers developed a composite material by incorporating activated carbon (AC) nanoparticles derived from coconut shells into low-density polyethylene (LDPE) via melt blending at varying ratios. The resulting composites showed reduced density alongside enhanced physical, thermal, and functional properties, with potential applications in environmental remediation and sustainable packaging.
The extensive use of low-density polyethylene (LDPE) in consumer and industrial applications has raised significant environmental concerns due to its persistence and low degradability. In this work, a composite material incorporating activated carbon (AC) nanoparticles into LDPE was developed to enhance its physical, thermal, and functional properties, with potential applications in environmental remediation and packaging. Activated carbon, derived from coconut shells and mechanically milled, was melt-blended with LDPE at varying ratios. The resulting composites exhibited a reduced density (0.229 g/cm³), a stable melting point (180 °C), and increased water-holding capacity (1.1%) compared to neat LDPE. Improvements in surface hardness (Shore D: 42), electrical resistivity (197 MΩ), and complete opacity (black coloration) were observed. Scanning Electron Microscopy revealed moderately uniform dispersion of nanocarbon particles (250–428 nm) within the matrix, with localized agglomeration contributing to increased interfacial surface area. Energy-dispersive X-ray spectroscopy confirmed the dominant presence of carbon (93.7 wt%, 95.7 at%) and oxygen, along with trace elements (Fe, Ti, Ca, Si), indicating successful integration of the filler and chemical stability of the composite. The LDPE–AC composites demonstrate enhanced material characteristics suitable for filtration, packaging, and environmental engineering. Further improvements in dispersion and interfacial adhesion are anticipated through surface modification or compatibiliser addition.
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Researchers prepared and characterized biocomposites made from Ecuadorian bamboo fiber reinforced in low-density polyethylene, finding that the natural fiber reinforcement improved several material properties compared to pure LDPE. The study highlights bamboo fiber composites as a more sustainable alternative that reduces reliance on purely synthetic plastics.
Recent advances in lignocellulosic coconut fiber biocomposites and their industrial applications
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This review paper summarizes existing research on turning coconut husk waste—normally discarded—into eco-friendly materials that could replace plastic in packaging, car parts, and construction. Since plastic pollution and microplastics are a growing concern for both the environment and human health, finding plant-based alternatives like coconut fiber could reduce our reliance on petroleum-based plastics that break down into the tiny particles now found in our food, water, and bodies. The research notes that scientists still need to solve some technical challenges (like making the fibers more water-resistant and durable) before these materials become widely available, but it points to a promising direction for more s
The Utilization of Coconut Coir Powder in Low-Density Polyethylene (LDPE) Plastic Mulch to Enhance Biodegradability and Resistance to Ultraviolet Light Exposure
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Researchers investigated adding coconut coir powder to low-density polyethylene plastic mulch to improve its biodegradability and UV resistance, finding that the natural fiber additive accelerated breakdown while maintaining protective properties that help conserve soil moisture and suppress weeds during agricultural use.
Polystyrene Waste Recycling Process as an Alternative Antistatic Packaging Raw Material
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Researchers synthesized a composite from recycled polystyrene and coconut shell carbon black that could serve as antistatic packaging material, demonstrating a value-added use for styrofoam waste.
Transforming a mixture of real post-consumer plastic waste into activated carbon for biogas upgrading
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Researchers explored converting mixed post-consumer plastic waste into activated carbon through pyrolysis and chemical activation for use in biogas purification. The resulting activated carbon demonstrated effective carbon dioxide adsorption capacity comparable to commercial alternatives. The study suggests that transforming hard-to-recycle plastic waste into useful carbon materials could offer a circular economy solution for both plastic pollution and renewable energy production.
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