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Papers
61,005 resultsShowing papers similar to Thermal Properties Study of Recycled Espresso Coffee Capsules for Biocomposite Application
ClearUtilization of spent coffee grounds as fillers to prepare polypropylene composites for food packaging applications
Researchers used waste coffee grounds as filler material in polypropylene plastic composites to improve sustainability and reduce reliance on virgin plastic. Adding natural biomass waste to plastic formulations can reduce the total plastic content in consumer products, though the composites still produce microplastic fragments during use.
Morpho-structural and thermo-mechanical characterization of recycled polypropylene and polystyrene from mixed post-consumer plastic waste
Researchers characterized recycled polypropylene and polystyrene recovered from mixed post-consumer plastic waste, assessing their morphological, structural, and thermo-mechanical properties to evaluate suitability for reuse in manufacturing.
A Systemic View of Biodegradable Materials: Analyzing the Environmental Performance of Compostable Coffee Capsules in Real Infrastructural Contexts
A systemic analysis of biodegradable materials examined their environmental performance across their full lifecycle, from production through disposal and degradation. The review finds that the environmental benefits of biodegradable plastics depend heavily on end-of-life conditions and that many do not degrade as claimed under real-world conditions.
Development and Evaluation of Recycled Polypropylene and Bean Pod Powder Composite Biomaterial for Fused Filament Fabrication
Researchers developed a composite biomaterial using recycled polypropylene and bean pod powder for fused filament fabrication 3D printing, evaluating its mechanical and thermal properties as a strategy for diverting both plastic and agricultural waste from the environment.
Production and Characterization of Waste Mask Reinforced Polyester Composite
Researchers produced and characterized polyester composites reinforced with ground waste COVID-19 masks at 0-10% by mass, finding that increasing mask content decreased density and Shore D hardness while raising porosity, thermal conductivity, and activation energy.
Properties of Simulated Plastic Waste Mixtures in Upcycling Processes: An Experimental Evaluation
This study evaluated the mechanical and thermal properties of ternary and quaternary blends of low-density polyethylene and polypropylene to simulate mixed plastic waste, finding that blend composition significantly affects material quality and identifying optimal formulations for upcycling processes.
Valorization of post-consumer plastic packaging into a composite material
This study developed a composite building material from post-consumer mixed plastic packaging waste, providing a higher-value end use that diverts plastic from landfill. Using plastic waste in durable construction products reduces the amount available to degrade into microplastics in the environment.
Performance Characterization and Evaluation of Innovative Cement Mortars and Concretes Made with Recycled EPS
Not relevant to microplastics — this study evaluates the mechanical strength and thermal insulation performance of cement mortars and concretes that incorporate recycled expanded polystyrene (EPS) beads as aggregate, focused on construction materials.
Acoustic and thermal characterization of a novel sustainable material incorporating recycled microplastic waste
Researchers created a new eco-friendly foam material by embedding recovered marine microplastics into a bio-based matrix, producing an open-cell insulating material with strong acoustic and thermal properties. The innovation offers a potential path to upcycle hard-to-recycle mixed marine plastic waste into useful building and industrial insulation products.
Low-Quality Coffee Beans Used as a Novel Biomass Source of Cellulose Nanocrystals: Extraction and Application in Sustainable Packaging
Researchers developed bio-based methylcellulose films reinforced with cellulose nanocrystals (CNCs) extracted from low-quality coffee beans as a sustainable alternative to petroleum-based plastic food packaging. The extracted CNCs showed needle-like morphology (~221 nm length), 65.75% crystallinity, and good thermal stability, providing a promising path to reduce microplastic accumulation in food chains.
Recycle potential of thermoplastic composites
This review examines the recycling potential of thermoplastic composite materials used in aerospace manufacturing, discussing processing pathways and the feasibility of recovering value from thermoplastic composite waste as a sustainable alternative to landfilling or incineration.
Development of Films from Spent Coffee Grounds’ Polysaccharides Crosslinked with Calcium Ions and 1,4-Phenylenediboronic Acid: A Comparative Analysis of Film Properties and Biodegradability
Researchers developed biodegradable films from polysaccharides extracted from spent coffee grounds crosslinked with calcium ions, demonstrating a pathway to convert a high-volume food industry byproduct into sustainable packaging materials.
Special Packaging Materials from Recycled PET and Metallic Nano-Powders
This study examines how recycled PET and polyolefin plastics reinforced with aluminum and iron nanopowders behave structurally, using microscopy and thermal analysis to characterize the composites. It is marginally relevant to microplastics in that it explores recycling pathways for packaging plastics that would otherwise degrade into environmental microplastic pollution.
Mechanical characterizations of waste face masks reinforced polyester composites: Recycling wastes into resources
Researchers explored recycling discarded face masks into composite materials by combining shredded mask fibers with polyester resin. The resulting composites showed promising mechanical strength comparable to natural fiber alternatives, suggesting that waste face masks could be repurposed rather than ending up as microplastic pollution in the environment.
Research on Properties of Ecobricks and its Possible Applications
This study examined the properties of ecobricks — plastic bottles stuffed with non-recyclable waste — as a building material, finding they can partially substitute for conventional bricks while diverting plastic waste from landfills.
The Potential of Spent Coffee Grounds in Functional Food Development
This review explores whether spent coffee grounds, the leftover material after brewing coffee, could be used as a health-promoting food ingredient rather than being thrown away. Spent coffee grounds contain beneficial compounds like caffeine and antioxidants that may help protect against heart disease, cancer, and liver problems. While not directly about microplastics, repurposing this waste could reduce the millions of tons of coffee grounds sent to landfills each year, where they contribute to environmental pollution.
Synthesis Of Bio-Derived Carbon Reinforced LDPE Composite From Waste Plastic And Its Characterization For Possible Applications
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.
Advancement In Mechanical Properties of Bioplastics Using Brown Algae and Eggshells— A Sustainable Method
Researchers developed bioplastic films incorporating brown algae and eggshell as reinforcing fillers, characterizing the mechanical and thermal properties of the resulting composites and finding that the bio-based additives improved tensile strength and biodegradability.
Extraction and Application in Sustainable Packaging
Researchers developed bio-based methylcellulose films reinforced with cellulose nanocrystals (CNCs) extracted from low-quality coffee beans as a sustainable alternative to petroleum-based plastic food packaging. The extracted CNCs showed needle-like morphology (~221 nm length), 65.75% crystallinity, and good thermal stability, providing a promising path to reduce microplastic accumulation in trophic chains.
Preparation and Characterization of Cellulose Filled With Hydroxyapatite Biocomposite Film
Despite its title referencing cellulose biocomposite film, this paper studies the development of biodegradable packaging materials as a sustainable alternative to conventional plastics — not microplastic pollution itself. It examines the thermal, mechanical, and water-resistance properties of cellulose-hydroxyapatite films and is not relevant to microplastics or human health.
Preparation and Spectroscopic, Thermal, and Mechanical Characterization of Biocomposites of Poly(butylene succinate) and Onion Peels or Durum Wheat Bran
Not relevant to microplastics — this materials science study characterizes the structural, thermal, and mechanical properties of biodegradable composite materials made from poly(butylene succinate) blended with onion peel or durum wheat bran filler.
Mechanical Recycling of Disposable Protective Masks
Disposable face masks — a major source of pandemic-era plastic waste — were mechanically recycled through extrusion to assess whether their polypropylene layers retain useful material properties. The study found that mechanical recycling had only minor effects on thermal properties, suggesting masks could be diverted from landfill and reprocessed into raw material, reducing the chance that mask fibers fragment into environmental microplastics.
Upcycling of HDPE Milk Bottles into High-Stiffness, High-HDT Composites with Pineapple Leaf Waste Materials
Not relevant to microplastics — this study explores recycling used HDPE milk bottles into reinforced plastic composites using pineapple leaf fiber waste, focused on materials engineering rather than pollution.
Biocomposites Based on Wheat Flour with Urea-Based Eutectic Plasticizer and Spent Coffee Grounds: Preparation, Physicochemical Characterization, and Study of Their Influence on Plant Growth
Researchers developed biocomposite materials from wheat flour plasticized with a choline chloride-urea eutectic mixture and spent coffee grounds, finding that the resulting material supports plant growth and offers a biodegradable alternative to synthetic plastic packaging.